Katrox's Blog | Computer Articles | Knowledge Articles

LOCK A FOLDER USING MY LOCKBOX

2012-06-24T05:32:00.000-07:00

We often save our very important files such as documents like working or study documents, photos and many more in our personal computer or laptop. And sometimes, we also do not want the others knows about that. Because that's very privacy for us. We will be very affraid if someone duplicate or even delete that files or documents. But, we can't limit our computer or laptop from another and we can't keep watch it everytime. So, the solution is we must combine all of our files and documents in one folder then we can protect that folder. Yes, we must lock a folder and we must have a password for a folder. Nobodies can open or access it without our permission. That is the best way for solving that problems. To protect our folders, we can use some folder protection software. In this blog, we will try to use a MyLockbox software.

First, we must download MyLockbox software from its website by typing the web address in our browser. The address is http://fspro.net/my-Lockbox. After we downloaded it, double click it and click Next button in Welcome Wizard window that appear after double click.

Second, in License Agreement window, ensure that option I accept the agreement was marked before pressing Next button. If the option was marked, click on Next button to continue the installation.

Third, after License Agreement then we will see a Select Destionation Location window. In this window we can set for installation folder for this program. As default is C:\Program Files\My Lockbox folder. But, we can change it by ourselves. Press Browse button to change the destination of installation folder. Then, don't forget for pressing Next button to continue the installation.

Fourth, there will appear a Select Start Menu Folder window. As default, My Lockbox will appear in My Lockbox folder in start menu. But, we can change it. We can define the folder for My Lockbox which will appear in start menu by pressing Browse button and specify the folder we will use. Moreover, we can make My Lockbox disappear from start menu by checking the option Don't create a Start Menu folder. To continue installation, press Next button.

Fifth, we will see a Ready to Install window which contain an information about installation setting. Press Install button to continue and wait for a minutes until finishing installation.

Sixth, after installation there will appear Shell Integration window. We can give a mark in checkbox Add "Protect with My Lockbox" to Windows Explorer context menu. By choosing it, there will be option we can choose it when we right-click in a folder. Press Next button to continue.

Seventh, then continuing by pressing Next button in Completing the My Lockbox Setup Wizard window, then click Finish button to finish the installation.

Eighth, after finishing the installation, we can try My Lockbox program. Open My Lockbox program in computer and fill the password in My Lockbox window. Fill the password in Password and Confirm Password area. And in Hint (password reminder) area, we can make a hint if we lose our password. Press OK button to continue. There will appear a Password window which inform us that the password was changed successfully. Then we will enter to My Lockbox area.

And the last, we can try to protect a folder by pressing Set button and choose the folder which we will protect it. The chosen folder will appear in Folder you want to protect area. Then press Lock button to protect the folder or Advanced button to see another option for protecting process. We can put a password on folder to protect it.

Now, we can enjoy our computer or laptop without fear of another access our documents without our permission. Because, we have protected our privacy folder. Have a nice try.

HAVE A BREAK, HAVE A MANATEE

2012-06-24T01:59:00.002-07:00

Have a break, have a manatee

MARQUEE TEXT USING VISUAL BASIC 6.0

2012-06-23T08:25:00.000-07:00

Marquee text usually found in a website. We can use some of web programming language to build it. But, we also can make it by using Visual Basic 6.0 or sometimes it is called as VB. May be some of you feel confused and wonder, then you get a big question in your brain, what is visual basic? You can find the answer by searching in internet using Google, Yahoo or many more. You will found some articles about visual basic 6.0. Even, you can also download visual basic 6.0 from internet. As we know, there are some version of visual basic. Like visual basic 6.0, visual basic 2008 and also visual basic 2010 and visual basic.net. Back to the tutorial about marquee text using visual basic 6.0, here are the tutorial :

First, please open the Visual Basic 6.0 program in your computer, then from the New Project window select Standar.EXE.

Second, after choosing Standar.EXE there is an empty form. Then we add Timer object in that form. And don't forget to set its interval to 10 or you can define by yourself. The interval setting can be found in Properties window of Timer object. Also we add a text by using Label object we can found it in Toolbars. Make your text by yourself. You can change Label setting from Properties window.

Third, then double click on Timer object and write these codes in code window. The codes as follows:

Private Sub Timer1_Timer()

If(Label1.Left + Label1.Width)
<=0 Then

                Label1.Left
= Me.Width

                End
If

                Label1.Left
= Label1.Left – 25

End Sub

And the last, you can run the program by clicking Run button in Visual Basic 6.0 or by pressing F5. You can modify it by yourself. Have a nice try.

Claim for Technorati

2012-06-22T21:51:00.000-07:00

Technorati will need to verify that you are an author of the blog by looking for a unique code. Please put the following short code NUV22A2V7H49 within a new blog post and publish it. This code must appear in the published post and it must also appear in your corresponding RSS feed once published. Once it is published, use the "Verify Claim Token" button on this page to tell Technorati your blog is ready for Technorati to verify the claim token and proceed to final review.

VM VIRTUALBOX INSTALLATION IN WINDOWS 7

2012-06-22T06:44:00.001-07:00

Oracle VM VirtualBox for Windows is a virtualization software that can be used to execute additional operating systems in the main operating system. For example, if a person has MS Windows operating system installed on his computer, then one can also run other operating systems is desirable in the MS Windows operating system.
This function is very important if one wants to test and simulation of a system without losing the existing system. Applications with similar functionality other VirtualBox is VMWare and Microsoft Virtual PC. VirtualBox was first developed by German company (Innotek GmbH). And in February 2008, Innotek GmbH was acquired by Sun Microsystems.
Before starting the installation of VirtualBox VM, we have to download virtualbox first. The VirtualBox can be downloaded http://www/virtualbox.org and adjust the operating system we use today. VM VirtualBox is also available in virtualbox for Ubuntu and virtualbox for Linux. The latest version now is version 4.1.8. The installation steps are as follows:

Double click on the file we've downloaded VirtualBox, until the installation process dialog box.

This will bring up a dialog box Welcome to the Oracle VM VirtualBox Setup Wizard. Then click the Next button.

Next will come the Custom Setup dialog box. Here we can determine which option we will install. For let us default without any change. Then click Next.

Then a new dialog box appears. Here we can determine whether it will be a shortcut on the desktop or quick launch. We can choose one of them or both. Then click the Next button.

Next comes a dialog box Warning: Network Interfaces. Click the Yes button to continue the installation process.

This will bring up a dialog box Ready to Install. In this position, the VirtualBox is ready to be installed on our computers. Click the Install button to continue the installation process. Dialog box will appear showing the installation process bar.

And finally, will display a dialog box Oracle VM VirtualBox installation is complete. This suggests that the process of installing VirtualBox on our computers is complete and ready for use. Please click the Finish button to finish.

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Super-virus Flame raises the cyberwar stakes

2012-06-03T04:49:00.000-07:00

Flame, a stealthy and complex cyberweapon, was found to be spying on Iran's government officials and computer systems.

NEW YORK (CNNMoney) -- The "Flame" virus, the most complex computer bug ever discovered, has been lurking for years inside Iranian government computers, spying on the country's officials.

Publicly unveiled this week, the bug is one of the most potent cyber weapons ever spotted in the wild. Security professionals say it marks a new milestone in the escalating digital espionage battle.

Flame's complexity and power "exceed[s] those of all other cyber menaces known to date," research firm Kaspersky Lab wrote in a dispatch about its investigation into Flame.

In a statement posted on its website on Monday, the Iranian National Computer Emergency Response Team (CERT) said it discovered Flame after "multiple investigations" over the past few months.

The stealthy malware has been in the wild for at least two years, the CERT team said, evading detection by security software.

It's a spy bug that's capable of, among other things, capturing what's on a user's screen, turning on a computer's microphone to record conversations, detecting who and what is on a network, collecting lists of vulnerable passwords, and transferring a user's computer files to another server.

The attack worked. Flame was likely responsible for recent incidents of "mass data loss" in the government, Iran's CERT team said in its terse announcement.

Patrik Runald, director of research at Websense Security Labs, said Flame is "potentially the most advanced malware to date, at least in terms of functionality combined with ability to stay hidden over a long period of time."

Flame is an unusually giant piece of malware: At 20 megabytes, it's about 20 to 30 times larger than typical computer bugs.

Yet it remained undetected in Iran's government computer systems dating back to at least 2010, and it was not discovered by any of the 43 antivirus programs the CERT team tested on it.

Now that Flame has been exposed, Iran is taking defensive measures. Iran's CERT said it developed a Flame detector over the past few weeks and it is spreading around a removal tool to rid the government's systems of the virus.

Computer viruses don't stay where you put them, and Iran probably isn't the only victim.

A Hungarian research lab that has been doing its own analysis said it has found traces of the bug in Europe and the United Arab Emirates. The lab, which began studying the virus this month, estimates that it may have been active "for as long as five to eight years."

So if Flame was spying, who was it spying for?

The Iranian CERT team said it believes there is a "close relation" between Flame two previous cyber attacks on Iran, known as the Stuxnet and Duqu computer worms.

"Stuxnet" is a word that sends a shiver of fear through cybersecurity pros.

In an extensive feature on the virus, Vanity Fair calls it "one of the great technical blockbusters in malware history." The bug targets "industrial control systems" -- that's jargon for critical national infrastructure -- and it had the unprecedented ability to sabotage its target and then cover its tracks.

Stuxnet was used to attack Iran's nuclear program in 2010. The virus caused centrifuges in a targeted facility to spin out of control, ultimately destroying it.

A related bug, Duqu, also targeted Iran's nuclear program. It was discovered last year and shows evidence of having been developed by engineers with access to Stuxnet's source code.

Who are those engineers? The widespread industry belief is that Stuxnet was created by the United States, Israel, or through the collaboration of both.

"Israel is blessed to be a nation possessing superior technology," Moshe Yaalon, Israel's minister of strategic affairs, said Tuesday in an interview with Israeli Army radio. "In that respect our achievements open up all sorts of opportunities for us."

But cyber war isn't a one-sided affair. If Flame was a targeted cyber attack carried out by United States or Israel, the same code could be reverse-engineered by Iran and sent back our way.

"It's important to understand that such cyber weapons can easily be used against any country," Kaspersky said about Flame. "Unlike with conventional warfare, the more developed countries are actually the most vulnerable in this case."

This isn't traditional war. The Internet has leveled the playing field, allowing governments that would never launch military attacks on one another to target one another in cyberspace.

"In warfare, when a bomb goes off it detonates; in cyberwarfare, malware keeps going and gets proliferated," said Roger Cressey, senior vice president at security consultancy Booz Allen Hamilton, at a Bloomberg cybersecurity conference held in New York last month.

"Once a piece of malware is launched in wild, what happens to that code and its capability?" he added. "Things like Stuxnet are being reverse-engineered."

Once it's out there, the code get also get into the hands of citizens or terrorists with a sophisticated knowledge of software coding. That's why some cybersecurity advocates are calling on the U.S. government to better protect itself against an all-out "code war" that some see as inevitable.

"The terrifying thing is that governments no longer have a monopoly on this capability," said Tom Kellerman, former commissioner of President Obama's cyber security council, at the Bloomberg conference. "There is code out there that puts it in anyone's hands."

Source: http://money.cnn.com/2012/05/30/technology/flame-virus/index.htm

HOVERCRAFT

2012-05-31T08:03:00.000-07:00

A hovercraft (air-cushion vehicle, ACV) is a craft capable of traveling over land, water, mud or ice and other surfaces both at speed and when stationary. They operate by creating a cushion of high-pressure air between the hull of the vessel and the surface below. Typically this cushion is contained within a flexible "skirt". Hovercraft are hybrid vessels operated by a pilot as an aircraft rather than a captain as a marine vessel. They typically hover at heights between 200mm and 600mm above any surface and operate above 20 knots and can clear gradients up to 20 degrees. The first practical design for hovercraft derived from a British invention in the 1950s to 1960s. They are now used throughout the world as specialised transports in disaster relief, coastguard, military and survey applications as well as for sport or passenger service. Very large versions have been used to transport hundreds of people and vehicles across the English Channel whilst others have military applications used to transport tanks, soldiers and large equipment in hostile environments and terrain.

History

Early efforts
There have been many attempts to understand the principles of high air pressure below hulls and wings. To a great extent the majority of these can be termed "ground or water effect" vehicles rather than hovercraft. The principle difference being a hovercraft can lift itself and roll and yaw whilst static whereas the majority of other designs require high speed or forward motion to create lift. The main driver of lifting a vessel is to reduce hydrodynamic drag and increase speed. There have been notable successes and variants across the world with surface effect vehicles such as the ekranoplan and hydrofoils.
The first mention in the historical record of the concepts behind surface effect vehicles that used the term hovering was by Swedish scientist Emanuel Swedenborg in 1716.
In 1915 Austrian Dagobert Müller built the world's first "water effect" vehicle. It flew for three and a half minutes. Shaped like a section of a large aerofoil (this creates a low pressure area above the wing much like an aircraft), the craft was propelled by four aero engines driving two submerged marine propellers, with a fifth engine that blew air under the front of the craft to increase the air pressure under it. Only when in motion could the craft trap air under the front, increasing lift. The vessel also required a depth of water to operate and could not transition to land or other surfaces. Thus the Versuchsgleitboot was more a ram-air vehicle similar to later Soviet designs with the ability to force air below its hull. Designed as a fast torpedo boat, the Versuchsgleitboot had a top speed over 32 knots (59 km/h). It was thoroughly tested and even armed with torpedoes and machine guns for operation in the Adriatic. It never saw actual combat, however, and as the war progressed it was eventually scrapped due to lack of interest and perceived need, and its engines returned to the Air Force.
The theoretical grounds for motion over an air layer were constructed by Konstantin Eduardovich Tsiolkovskii in 1926 and 1927.
In 1931 Finnish aero engineer Toivo J. Kaario began designing a developed version of a vessel using an air cushion and built a first prototype Finnish: Pintaliitäjä (Surface Soarer), in 1937. .[1] Kaario's design included the modern features of a lift engine blowing air into a flexible envelope for lift. Kaario never received funding to build his design, however. Kaario's efforts were followed closely by Vladimir Levkov in the Soviet Union, who returned to the solid-sided design of the Versuchsgleitboot and are today classified as ground effect vehicles. Levkov designed and built a number of similar craft during the 1930s, and his L-5 fast-attack boat reached 70 kn (130 km/h) in testing. However, the start of World War II put an end to Levkov's development work.

Post-war progress
When the war ended a number of groups took up development of low friction water vessels including hydrofoil and water effects. The Soviets, specifically Rostislav Alexeyev and his Central Hydrofoil Design Bureau, returned to the ground effect design pioneered by Levkov, and produced a wide variety of such craft over the next 30 years. However, Alexeyev's systems were always experimental, and never entered production. Famous among these is the Lun-class ekranoplan, a massive missile-firing boat powered by eight jet engines. Unlike Levkov's design, however, these boats generally lacked a lift engine, using power and short wings to create lift at speed. This represented a unique evolution of craft but were also not classed as true hovercraft.
In the 1950s and 1960s in Canada, John Carver Meadows Frost at Avro Canada started experimenting with the Coandă effect and noticed that he could produce an annular ring of airflow by blowing the air down over a convex surface. This work led to the development of the Avrocar. He later turned to the United States for continued development funding. The Avrocar was more similar to the modern hovercraft in that it used a lift engine blowing directly down but not able to contain cushion. He also attempted to claim that it would fly at high speeds and altitudes. In testing it proved incapable of flying more than a few feet off the ground and at speeds greater than about 45 km/h, and after a lengthy period of testing the program was abandoned in 1961.
There were many other vehicles capable of hovering mainly Helicopters, Gyroplanes and Jet powered variants see the "the flying bedstead" and "jet pack" but none of these vehicles could fill the requirement of high speed, high payload and mixed operating surfaces close to the ground.

The modern Hovercaft.

Christopher Cockerell
The idea of the modern hovercraft is most often associated with Sir Christopher Cockerell. Cockerell came across the key concept in his design when studying the ring of airflow when high-pressure air was blown into the annular area between two concentric tin cans, one coffee and the other from cat food. This produced an annular ring of airflow, as expected, but he noticed an unexpected benefit as well; the sheet of fast moving air presented a sort of physical barrier to the air on either side of it. This effect, which he called the "momentum curtain", could be used to trap high-pressure air in the area inside the curtain, providing lift based on pressure, not airflow. In theory, only a small amount of active airflow would be needed to create lift and much less than a design that relied only on the momentum of the air to provide lift, like Frost's Avrocar or a helicopter. In terms of power, a hovercraft would only need between one quarter to half of the power required by a helicopter.
Cockerell built several models of his hovercraft design in the early 1950s, featuring an engine mounted to blow from the front of the craft into a cavity below it, combining both lift and propulsion. He demonstrated the model flying over many Whitehall carpets in front of various government experts and ministers, and the design was subsequently put on the secret list. In spite of tireless efforts to arrange funding no branch of the military was interested, as he later noted, "The Navy said it was a plane not a boat; the Air Force said it was a boat not a plane; and the Army were 'plain not interested'".

SR.N1

SR.N1 General Arrangement

This lack of military interest meant that there was no reason to keep the concept secret, and it was declassified. Cockerell was finally able to convince the National Research Development Corporation to fund development of a full-scale model. In 1958 the NRDC placed a contract with Saunders Roe for the development of what would become the SR.N1, short for "Saunders Roe, Nautical 1". The SR.N1 was powered by a 450 hp Alvis Leonides engine powering a vertical fan in the middle of the craft. In addition to providing the lift air, a portion of the airflow was bled off into two channels on either side of the craft, which could be directed to provide thrust. In normal operation this extra airflow was directed rearward for forward thrust, and blew over two large vertical rudders that provided directional control.
SR.N1 made its first hover on 11 June 1959, and made its famed successful crossing of the English Channel on 25 July 1959. In December, 1959, the Duke of Edinburgh visited Saunders Roe at East Cowes and persuaded the chief test-pilot, Commander Peter Lamb, to allow him to take over the SR.N1's controls. He flew SR.N1 so fast that he was asked to slow down a little. On examination of the craft afterwards, it was found that she had been dished in the bow due to excessive speed, damage which was never allowed to be repaired, and was from then on affectionately referred to as the 'Royal Dent'.

Skirts and other improvements
Testing quickly demonstrated that the idea of using a single engine to provide air for both the lift curtain and forward flight required too many trade-offs. A Blackburn Marboré for forward thrust and two large vertical rudders for directional control were added, producing the SR.N1 Mk II. A further upgrade with the Armstrong Siddeley Viper produced the Mk III. Further modifications, especially the addition of pointed nose and stern areas, produced the Mk IV.
Although the SR.N1 was successful as a testbed, the design hovered too close to the surface to be practical; at 23 cm even small waves would hit the bow. The solution was offered by Cecil Latimer-Needham. In 1958 he suggested the use of two rings of rubber to produce a double-walled extension of the vents in the lower fuselage. When air was blown into the space between the sheets it exited the bottom of the skirt in the same way it formerly exited the bottom of the fuselage, re-creating the same momentum curtain, but this time at some distance from the bottom of the craft.
Latimer-Needham and Cockerell devised a 4 foot (1.22 m) high skirt design which was fitted to the SR.N1 to produce the Mk V, displaying hugely improved performance, with the ability to climb over obstacles almost as high as the skirt. In October 1961, Latimer-Needham sold his skirt patents to Westland, who had recently taken over Saunders Roe's interest in the hovercraft. Experiments with the skirt design demonstrated a problem; it was originally expected that pressure applied to the outside of the skirt would bend it inward, and the now-displaced airflow would cause it to pop back out. What actually happened is that the slight narrowing of the distance between the walls resulted in less airflow, which in turn led to more air loss under that section of the skirt. The fuselage above this area would drop due to the loss of lift at that point, and this led to further pressure on the skirt.
After considerable experimentation, Denys Bliss at Hovercraft Development Ltd. found the solution to this problem. Instead of using two separate rubber sheets to form the skirt, a single sheet of rubber was bent into a U shape to provide both sides, with slots cut into the bottom of the U forming the annular vent. When deforming pressure was applied to the outside of this design, air pressure in the rest of the skirt forced the inner wall to move in as well, keeping the channel open. Although there was some deformation of the curtain, the airflow within the skirt was maintained and the lift remained relatively steady. Over time, this design evolved into individual extensions over the bottom of the slots in the skirt, known as "fingers".

Passenger-carrying hovercraft, off shore from Ōita Airport

Commercialisation
With these improvements the hovercraft became an effective transport system for high-speed service on water and shallow land, leading to widespread developments for military vehicles, search and rescue, and commercial operations. By 1962 many UK aviation and ship building firms were working on hovercraft designs, including Saunders Roe/Westland, Vickers-Armstrong, William Denny, Britten-Norman and Folland. Small-scale ferry service started as early as 1962 with the launch of the Vickers-Armstrong VA-3. With the introduction of the SR.N4 in 1968, hovercraft had developed into useful commercial craft.
Another major pioneering effort of the early hovercraft era was carried out by Jean Bertin's firm in France. Bertin was an advocate of the "multi-skirt" approach, which used a number of smaller cylindrical skirts instead of one large one in order to avoid the problems noted above. During the early 1960s he developed a series of prototype designs, which he called "terraplanes" if they were aimed for land use, and "naviplanes" for water. The best known of these designs was the N500 Naviplane, built for Seaspeed by SEDAM. The N500 could carry 400 passengers, 55 cars and 5 buses, and operated between Boulogne to Dover at an average speed of 74 knots (137 km/h).
Another discovery was that the total amount of air needed to lift the craft was a function of the roughness of the surface it traveled over. On flat surfaces, like pavement, the needed air pressure was so low that hovercraft were able to compete in energy terms with conventional systems like steel wheels. However, as the hovercraft lift system acted as both a lift and very effective suspension, it naturally lent itself to high-speed use where conventional suspension systems were considered too complex. This led to a variety of "hovertrain" proposals during the 1960s, including England's Tracked Hovercraft and France's Aérotrain. In the U.S., Rohr Inc. and Garrett both took out licenses to develop local versions of the Aérotrain. These designs competed with maglev systems in the high-speed arena, where their primary advantage was the very "low tech" tracks they needed. On the downside, the air blowing out from under the trains presented a unique problem in stations, and interest in them waned in the 1970s.
By the early 1970s the basic concept had been well developed, and the hovercraft had found a number of niche roles where its combination of features were advantageous. Today they are found primarily in military use for amphibious operations, search and rescue vehicles in shallow water, and sporting vehicles.

1. Propellers
2. Air
3. Fan
4. Flexible skirt

Design
Hovercraft can be powered by one or more engines. Small craft, such as the SR.N6, usually have one engine with the drive split through a gearbox. On vehicles with several engines, one usually drives the fan (or impeller), which is responsible for lifting the vehicle by forcing high pressure air under the craft. The air inflates the "skirt" under the vehicle, causing it to rise above the surface. Additional engines provide thrust in order to propel the craft. Some hovercraft use ducting to allow one engine to perform both tasks by directing some of the air to the skirt, the rest of the air passing out of the back to push the craft forward

Uses
Commercial
The British aircraft manufacturer Saunders-Roe developed the first practical man-carrying hovercraft, the SR.N1, which carried out several test programmes in 1959 to 1961 (the first public demonstration in 1959), including a cross-channel test run in July 1959 piloted by Peter ("Sheepy") Lamb, an ex-naval test pilot and the Chief Test Pilot at Saunders Roe. Christopher Cockerell was on board, and the flight took place on the 50th anniversary of Louis Blériot's first aerial crossing.
The SR.N1 was powered by one (piston) engine, driven by expelled air. Demonstrated at the Farnborough Airshow in 1960, it was shown that this simple craft could carry a load of up to 12 Marines with their equipment as well as the pilot and co-pilot with only a slight reduction in hover height proportional to the load carried. The SR.N1 did not have any skirt, using instead the peripheral air principle that Sir Christopher had patented. It was later found that the craft's hover height was improved by the addition of a skirt of flexible fabric or rubber around the hovering surface to contain the air. The skirt was an independent invention made by a Royal Navy officer, C.H. Latimer-Needham, who sold his idea to Westland (parent company of Saunders-Roe), and who worked with Sir Christopher to develop the idea further.
The first passenger-carrying hovercraft to enter service was the Vickers VA-3, which in the summer of 1962 carried passengers regularly along the north Wales Coast from Moreton, Merseyside, to Rhyl. It was powered by two turboprop aero-engines and driven by propellers.

In Britain, the RNLI operate a small fleet of hovercraft lifeboats

The Hovertravel service between the Isle of Wight and mainland England is currently the only public hovercraft service in the United Kingdom

During the 1960s Saunders-Roe developed several larger designs which could carry passengers, including the SR.N2, which operated across the Solent in 1962 and later the SR.N6, which operated across the Solent from Southsea to Ryde on the Isle of Wight for many years. In 1963 the SR.N2 was used on an experimental service between Weston-super-Mare and Penarth under the aegis of P & A Campbell, the paddle steamer operators.
Operations by Hovertravel commenced on July 24, 1965 using the SR.N6 which carried just 38 passengers. Two 98 seat AP1-88 hovercraft were introduced on this route in 1983, and in 2007 these were joined by the first 130 seater BHT130 craft. The AP1-88 and the BHT130 were notable as they were largely built by Hoverwork using shipbuilding techniques/materials (i.e. welded aluminium structure and diesel engines) rather than the aircraft techniques used to build the earlier craft built by Saunders-Roe/British Hovercraft Corporation. Over 20 million passengers had used the service as of 2004 – the service is still operating (2010) and is by far the longest, continuously operated hovercraft service.
In 1966, two cross-channel passenger hovercraft services were inaugurated using SR.N6 hovercraft. Hoverlloyd ran services from Ramsgate Harbour, England, to Calais, France, and Townsend Ferries also started a service to Calais from Dover, which was soon superseded by that of Seaspeed.
As well as Saunders-Roe and Vickers (which combined in 1966 to form the British Hovercraft Corporation (BHC)), other commercial craft were developed during the 1960s in the UK by Cushioncraft (part of the Britten-Norman Group) and Hovermarine based at Woolston (the latter being 'Sidewall Hovercraft', where the sides of the hull projected down into the water to trap the cushion of air with 'normal' hovercraft skirts at the bow and stern). One of these models, the HM-2, was used by Red Funnel between Southampton (near the Woolston Floating Bridge) and Cowes.
The world's first car-carrying hovercraft was made in 1968, the BHC Mountbatten class (SR.N4) models, each powered by four Rolls-Royce Proteus gas turbine engines. These were both used by rival operators Hoverlloyd and Seaspeed to operate regular car and passenger carrying services across the English Channel. Hoverlloyd operated from Ramsgate, where a special hoverport had been built at Pegwell Bay, to Calais. Seaspeed operated from Dover, England, to Calais and Boulogne in France. The first SR.N4 had a capacity of 254 passengers and 30 cars, and a top speed of 83 kn (154 km/h). The Channel crossing took around 30 minutes and was run rather like an airline with flight numbers. The later SR.N4 Mk.III had a capacity of 418 passengers and 60 cars to the Isle of Wight . These were later joined by the French-built SEDAM N500 Naviplane with a capacity of 385 passengers and 45 cars; only one entered service and was used intermittently for a few years on the cross-channel service until returned to SNCF in 1983. The service ceased in 2000 after 32 years, due to competition with traditional ferries, catamaran, the disappearance of duty-free shopping within the EU and the advancing age of the SR.N4 hovercraft and the opening of the Channel Tunnel.
The commercial success of hovercraft suffered from rapid rises in fuel prices during the late 1960s and 1970s following conflict in the Middle East. Alternative over-water vehicles such as wave-piercing catamarans (marketed as the SeaCat in the UK until 2005) use less fuel and can perform most of the hovercraft's marine tasks. Although developed elsewhere in the world for both civil and military purposes, except for the Solent Ryde to Southsea crossing, hovercraft disappeared from the coastline of Britain until a range of Griffon Hovercraft were bought by the Royal National Lifeboat Institution.

A volunteer fire department in Bavaria using a hovercraft to practice a rescue

Civilian non-commercial
In Finland, small hovercraft are widely used in maritime rescue and during the rasputitsa ("mud season") as archipelago liaison vehicles. In England, hovercraft of the Burnham-on-Sea Area Rescue Boat (BARB) are used to rescue people from thick mud in Bridgwater Bay. Avon Fire and Rescue Service became the first Local Authority fire service in the UK to operate a hovercraft. It is used to rescue people from thick mud in the Weston-super-Mare area and during times of inland flooding. A Griffon rescue Hovercraft has been in use for a number of years with the Airport Fire Service at Dundee Airport in Scotland. It is used in the event of an aircraft ditching in the Tay estuary. Numerous fire departments around the U.S./Canadian Great Lakes operate hovercraft for water and ice rescues, often of ice fisherman stranded when ice breaks off from shore.
In October 2008 The Red Cross commenced a flood-rescue service hovercraft based in Inverness, Scotland. Gloucestershire Fire and Rescue Service received two flood-rescue hovercraft donated by Severn Trent Water following the 2007 UK floods.
Since 2006 hovercraft have been used in aid in Madagascar by HoverAid, an international NGO who use the hovercraft to reach the most remote places on the island. The Scandinavian airline SAS used to charter an AP1-88 hovercraft for regular passengers between Copenhagen Airport, Denmark, and the SAS Hovercraft Terminal in Malmö, Sweden.
In 1998, the US Postal Service began using the British built Hoverwork AP1-88 to haul mail, freight, and passengers from Bethel, Alaska, to and from eight small villages along the Kuskokwim River. Bethel is far removed from the Alaska road system, thus making the hovercraft an attractive alternative to the air based delivery methods used prior to introduction of the hovercraft service. Hovercraft service is suspended for several weeks each year while the river is beginning to freeze to minimize damage to the river ice surface. The hovercraft is able to operate during the freeze-up period; however, this could potentially break the ice and create hazards for villagers using their snowmobiles along the river during the early winter.
In 2006 Kvichak Marine Industries of Seattle USA built, under license, a cargo/passenger version of the Hoverwork BHT130. Designated 'Suna-X', it is used as a high speed ferry for up to 47 passengers and 47,500 pounds of freight serving the remote Alaskan villages of King Cove and Cold Bay.
An experimental service was operated in Scotland across the Firth of Forth (between Kirkcaldy and Portobello, Edinburgh), from 16 to 28 July 2007. Marketed as Forthfast, the service used a craft chartered from Hovertravel and achieved an 85% passenger load factor. As of 2009 the possibility of establishing a permanent service is still under consideration.
Since the channel routes abandoned hovercraft, and pending any reintroduction on the Scottish route, the United Kingdom's only public hovercraft service is that operated by Hovertravel between Southsea (Portsmouth) and Ryde on the Isle of Wight.
From the 1960s, several commercial lines were operated in Japan, without much success. In Japan the last commercial line had linked Ōita Airport and central Ōita but was shut down in October 2009.

A U.S. Navy Landing Craft Air Cushion, an example of a military hovercraft

Hovercraft are still manufactured in the UK near to where they were first conceived and tested and the Isle Of Wight. They can also be chartered for a wide variety of uses including inspections of shallow bed offshore wind farms and VIP or passenger use. A typical vessel would be a Tiger IV or a Griffon. They are light, fast, road transportable and very adaptable with the unique feature of minimising damage to environments.

Military
First applications of the hovercraft in military use was with the SR.N1 through SR.N6 craft built by Saunders-Roe in the Isle of Wight in the UK and used by the UK joint forces. To test the use of the hovercraft in military applications the UK set up the Interservice Hovercraft Trials Unit (IHTU) base at Lee-on-the-Solent (now the site of the Hovercraft Museum). This unit carried out trials on the SR.N1 from Mk1 through Mk5 as well as testing the SR.N2, SR.N3, SR.N5 and SR.N6 craft. Currently the Royal Marines use the Griffon 2000 TDX Class ACV as an operational craft. The 2000 was deployed by the UK in Iraq.
In the US, during the 1960s, Bell licenced and sold the Saunders-Roe SR.N5 as the Bell SK-5. They were deployed on trial to the Vietnam War by the United States Navy as PACV patrol craft in the Mekong Delta where their mobility and speed was unique. This was used in both the UK SR.N5 curved deck configuration and later with modified flat deck, gun turret and grenade launcher designated the 9255 PACV. The United States Army also experimented with the use of SR.N5 hovercraft in Vietnam. Three hovercraft with the flat deck configuration were deployed to Dong Tam in the Mekong delta region and later to Ben Luc. They saw action primarily in the Plain of Reeds. One was destroyed in early 1970 and another in August of that same year after which the unit was disbanded. The only remaining U.S. Army SR.N5 hovercraft is currently on display in the Army Transport Museum in Virginia. Experience led to the proposed Bell SK-10 which was the basis for the LCAC-class air-cushioned landing craft now deployed by the U.S. and Japanese Navy.
The Soviet Union was the world's largest developer of military hovercraft. Their designs range from the small Czilim class ACV, comparable to the SR.N6, to the monstrous Zubr class LCAC, the world's largest hovercraft. The Soviet Union was also one of the first nations to use a hovercraft, the Bora, as a guided missile corvette, though this craft possessed rigid, non-inflatable sides. With the fall of the Soviet Union most Soviet military hovercraft fell into disuse and disrepair. Only recently has the modern Russian Navy begun building new classes of military hovercraft.
The Finnish Navy designed an experimental missile attack hovercraft class, Tuuli class hovercraft, in the late 1990s. The prototype of the class, Tuuli, was commissioned in 2000. It proved an extremely successful design for a littoral fast attack craft, but due to fiscal reasons and doctrinal change in the Navy, the hovercraft was soon withdrawn.
The Hellenic Navy operates four Russian-designed Zubr class LCAC. This is the world’s largest military air-cushioned landing craft.
The People's Army Navy of China operates the Jingsah II class LCAC. This troop and equipment carrying hovercraft is roughly the Chinese equivalent of the U.S. Navy LCAC.

Recreational/Sport
Small commercially manufactured, kit or plan-built hovercraft are increasingly being used for recreational purposes such as inland racing and cruising on inland lakes and rivers, marshy areas, estuaries and inshore coastal waters.
The Hovercraft Cruising Club is dedicated to encouraging, supporting and developing the safe & considerate operation of recreational cruising hovercraft. It organises training, informal hover-events, and offers world-class hovercraft design tools, advice on safe operation, member discounts and craft insurance. It has an active and informative club member forum.
The Hovercraft Club of Great Britain, founded in 1966, regularly organizes inland and coastal hovercraft race events at various venues across the United Kingdom.
In August 2010 the Hovercraft Club of Great Britain hosted the World Hovercraft Championships at Towcester Racecourse The World Hovercraft Championships are run under the auspices of the World Hovercraft Federation. Similar events are also held in Europe and the US.

Other
Hoverbarge
A real benefit of air cushion vehicles in moving heavy loads over difficult terrain, such as swamps, was overlooked by the excitement of the British Government funding to develop high-speed hovercraft. It was not until the early 1970s that the technology was used for moving a modular marine barge with a dragline on board for use over soft reclaimed land.
Mackace (Mackley Air Cushion Equipment), now known as Hovertrans, produced a number of successful Hoverbarges, such as the 250 ton payload “Sea Pearl” which operated in Abu Dhabi and the twin 160 ton payload "Yukon Princesses" which ferried trucks across the Yukon river to aid the pipeline build. Hoverbarges are still in operation today. In 2006, Hovertrans (formed by the original managers of Mackace) launched a 330 ton payload drilling barge in the swamps of Suriname.
The Hoverbarge technology is somewhat different from high-speed hovercraft, which has traditionally been constructed using aircraft technology. The initial concept of the air cushion barge has always been to provide a low-tech amphibious solution for accessing construction sites using typical equipment found in this area, such as diesel engines, ventilating fans, winches and marine equipment. The load to move a 200 ton payload ACV barge at 5 kn (9.3 km/h) would only be 5 tons. The skirt and air distribution design on the high-speed craft again is more complex as they have to cope with the air cushion being washed out by a wave and wave impact. The slow speed and large mono chamber of the hover barge actually helps reduce the effect of wave action giving a very smooth ride.

Hovertrains
Several attempts have been made to adopt air cushion technology for use in fixed track systems, in order to utilize the lower frictional forces for delivering high speeds. The most advanced example of this was the Aérotrain, an experimental high speed hovertrain built and operated in France between 1965 and 1977. The project was abandoned in 1977 due to lack of funding, the death of its lead engineer and the adoption of TGV by the French government as its high-speed ground transport solution.
A test track for a tracked hovercraft system was built at Earith near Cambridge, England. It ran southwest from Sutton Gault, sandwiched between the Old Bedford River and the smaller Counter Drain to the west. Careful examination of the site will still reveal traces of the concrete piers used to support the structure. The actual vehicle, RTV31, is preserved at Railworld in Peterborough and can be seen from trains, just south west of Peterborough railway station. The vehicle achieved 104 mph (167 km/h) on 7 February 1973 but the project was cancelled a week later. The project was managed by Tracked Hovercraft Ltd., with Denys Bliss as Director in the early 1970s, only to be axed by the Aerospace Minister, Michael Heseltine. Records of this project are available from the correspondence and papers of Sir Harry Legge-Bourke, MP at Leeds University Library. Heseltine was accused by Airey Neave and others of misleading the House of Commons when he stated that the government was still considering giving financial support to the Hovertrain, when the decision to pull the plug had already been taken by the Cabinet.
Despite promising early results, the Cambridge project was abandoned in 1973 due to financial constraints, but parts of the project were picked up by the engineering firm Alfred McAlpine, only to be finally abandoned in the mid 1980s. The Tracked Hovercraft project and Professor Laithwaite's Maglev train system were contemporaneous, and there was intense competition between the two prospective British systems for funding and credibility.
At the other end of the speed spectrum, the Dorfbahn Serfaus has been in continuous operation since 1985. This is an unusual underground air cushion funicular rapid transit system, situated in the Austrian ski resort of Serfaus. Only 1,280 m (4,200 ft) long, the line reaches a maximum speed of 25 mph (40 km/h). A similar system also exists in Narita International Airport near Tokyo, Japan.
In the late 1960s and early 1970s the U.S. Department of Transport's Urban Mass Transit Administration funded several hovertrain projects which were known as Tracked Air Cushion Vehicles or TACVs. They were also known as Aerotrains since one of the builders had a licence from Bertin's Aerotrain company. Three separate projects were funded. Research and development was carried out by Rohr, Inc., Garrett AiResearch and Grumman. The UMTA built an extensive test site in Pueblo, Colorado, with different types of tracks for the different technologies used by the prototype contractors. They managed to build prototypes and do a few test runs before the funding was cut.

Non-transportation
The Hoover Constellation was a spherical canister-type vacuum cleaner notable for its lack of wheels. Floating on a cushion of air, it was a domestic hovercraft. They were not especially good as vacuum cleaners as the air escaping from under the cushion blew uncollected dust in all directions, nor as hovercraft as their lack of a skirt meant that they only hovered effectively over a smooth surface. Despite this, original Constellations are sought-after collectibles today.
The Flymo is an air-cushion lawn mower which uses a fan on the cutter blade to provide lift. This allows it to be moved in any direction, and provides double-duty as a mulcher.

Preservation
Lee-on-the-Solent, Hampshire, England, is the home to the Hovercraft Museum which houses the world's largest collection of hovercraft designs, including some of the earliest and largest. Much of the collection is housed within two retired SR.N4 hovercraft, and many hovercraft in the collection are operational.

Hovercraft are still in use between Ryde on the Isle of Wight and Southsea on the mainland. The service, operated by Hovertravel, runs many times an hour and is the fastest way of getting on or off the island. Large passenger hovercraft are still manufactured on the Isle of Wight.

Records
World's Largest Civil Hovercraft - The BHC SR.N4 Mk.III, at 56.4 m (185 ft) length and 310 metric tons (305 long tons) weight, can accommodate 418 passengers and 60 cars.
World's largest military hovercraft - The Russian Zubr class LCAC at 57.6 meters length and a maximum displacement of 535 tons. This hovercraft can transport three T-80 main battle tanks (MBT), 140 fully equipped troops, or up to 130 tons of cargo. Four have been purchased by the Greek Navy.
English Channel crossing - 22 minutes by Princess Anne MCH SR.N4 Mk.III on September 14, 1995
World's Hovercraft Speed Record - September 18, 1995 - Speed Trials, Bob Windt (USA) 137.4 km/h (85.87 mph), 34.06 secs measured kilometre
Longest continuous use - The original prototype SR.N6 Mk.I (009) was in service for over twenty years, and logged a remarkable 22,000 hours of use. It is currently on display at the Hovercraft Museum in Lee-on-the-Solent, Hampshire, England.

Source: http://moreverything.blogspot.com/2012/02/hovercraft.html

New Virus Attack : (MS Word Icon) SVCHOST SPOOLSV

2008-05-26T16:16:00.000-07:00

Discovered a new virus that resides in c:\Recycled

CTFMON.exe
SMSS.exe
SPOOLSV.exe
SVCHOST.exe

The icon of these files are EXCTLY like Microsoft Windows MS Word type

Icon : MS Word
Type of File: Application
Description: Microsoft Office Word
Size : 55.0 KB (56,320 bytes)
Size on disk: 56.0 KB (57,344 bytes)
File version : 11.0.5604.0
Copyright : Copyright © 1983-2003 Microsoft Corporation. All rights reserved.
Language : Language Neutral
etc

It adds to the startup at

HKCU\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell
Explorer.exe “C:\recycled\SVCHOST.exe”

If you try to end task one of the process, the other processes make such changes in your system registry that u’ll be never again able to login to ur windows account. : ( [observed by me at some cases, still got to work out] The comp logs off as soon as you click on your account.

coz of changes to HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Userinit

Discovered

Place : rvce, bangalore
Dated : April 2, 2008
was present much earlier than this date

I’ll work on this soon, didn’t find any occurrence from anywhere else on my blog yet.
Kaspersky do not detect this virus yet, as on 15 april 2008.

======
taken from : http://piyushlabs.wordpress.com/2008/04/15/new-virus-attack-ms-word-icon-svchost-spoolsv/
======

SSVICHOSST virus

2008-05-26T16:11:00.000-07:00

Virus File Name:

ssvichosst.exe (having a folder icon)
(a file inside a folder having the same name as the folder, having folder icon)

Symptoms:

You are unable to open TaskManager, Regedit, CMD, Msconfig, etc.
Some windows open for fractions of seconds and suddenly gets closed. Like TaskManager, Regedit, etc.
No command works in ’command’ window, except ‘exit’.
The Tools>FolderOptions is gone in the Windows Explorer.
You cannot see your hidden files.
Your system has become too slow. As the virus process takes up almost half of the resources.

Behind the screen:

The virus copies the virus file “SSVICHOST.EXE” to C:\Windows\ and to C:\Windows\System32\ .
It runs its process SSVICHOSST.EXE as the background process under User.
Processes with the other file name may also be running with the WindowTitle ‘AutoIt v3′.
It adds a startup program in HKCU\Software\MicroSoft\Windows\CurrentVersion\Run as ‘Yahoo Massangger***’
Adds a value in registry, HKLM\System\ControlSet001\Services\Schedule ‘AtTaskMaxHours’=0.
Complete detail

SOLUTION:

Follow this long procedure . . .
End Task*
———-1. On desktop> right-click> new> shortcut
2. Enter
taskkill.exe /F /FI “IMAGENAME eq ssvichosst.exe”
3. Next> finish
4. Double click the shortcut file just created
*In some case, if this “taskkill.exe” file is not available in the windows\system32 directory (esp. in laptops), then try to get it from someone’s comp.
Enable Task Manager
——————-
1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
Enable CMD
———-
1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableCmd /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableCmd /t REG_DWORD /d 0 /f
Enable Regedit
————–
1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f
Folder Option & Hidden Files
—————————-
1. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
2. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
3. Start> run
reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v Hidden /t REG_DWORD /d 1 /f
4. Start>run
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 1 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v DefaultValue /t REG_DWORD /d 2 /f
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v CheckedValue /t REG_DWORD /d 2 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v DefaultValue /t REG_DWORD /d 2 /f
Delete Virus Files**
——————–
1. Start> run> CMD
del %windir%\ssvichosst.exe /a /f /q
del %windir%\system32\ssvichosst.exe /a /f /q
**Do not double click these files, otherwise you have to start from the begining
Delete Startup Launch of Virus***
———————————–
1. Start> run
reg delete HKCU\Microsoft\Windows\CurrentVersion\Run /v Yahoo Messengger

Fix for ” Windows cannot find ssvichosst
—————————————–

1. START> RUN > type CMD > now paste the following
reg add “HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon” /v Shell /t REG_SZ /d Explorer.exe
this procedure is to remove the error that comes whenever you restart windows
something like “could not find SSVICHOSST” or “error loading SSVICHOSST” or “windows cannot find ssvichost”

Funny UST Scandal.avi.exe Virus

2008-05-26T16:00:00.000-07:00

============================================================
VIRUS FILES
———–
Name :Funny UST Scandal.avi.exe
Name :SMSS.exe
Icon :Video file (GOM Player)
Type of File :Application
Size :224KB/240KB
Modified :November 20, 2007
Attibutes :Hidden, System (varies)
File Version :3.2.8.1
Description :
Copyright :
CompiledScript :AutoIt v3 Script : 3, 2, 8, 1

BEHIND THE SCREEN
—————–
ModifyRegValue \REGISTRY\USER\S-1-5-21-436374069-1390067357-839522115-1003\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{4c4da22a-f800-11db-8de6-806d6172696f}\BaseClass
CreateDir C:\log\
CreateFile C:\WINDOWS\autorun.inf
CreateFile C:\WINDOWS\smss.exe
CreateFile C:\WINDOWS\killer.exe
CreateFile C:\WINDOWS\Funny UST Scandal.exe
CreateFile C:\Documents and Settings\All Users\Start Menu\Programs\Startup\lsass.exe
ModifyRegValue \REGISTRY\USER\S-1-5-21-436374069-1390067357-839522115-1003_CLASSES\.vbs
CreateRegValue \REGISTRY\USER\S-1-5-21-436374069-1390067357-839522115-1003_CLASSES\.reg
CreateRegValue \REGISTRY\USER\S-1-5-21-436374069-1390067357-839522115-1003\Software\Microsoft\Windows\CurrentVersion\Run\Runonce
ModifyRegValue \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell
ModifyRegValue \REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL\CheckedValue
CreateFile X:\autorun.inf
CreateFile X:\smss.exe
CreateFile X:\Funny UST Scandal.avi.exe
**X=all the drives
IDENTIFIED BY ANTIVIRUS (KAV)
———————–
“Worm.P2P.generic”
“Trojan.generic”
*during installation of virus, not during scanning, i dont have latest update
SOLUTION
——–
1. Enable Regedit, CMD, TaskManager.
2. Restart the comp in “Safe Mode with Command Prompt”
3. Type:
reg delete HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v Runonce
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 1
reg add “HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon” /v Shell /t REG_SZ /d Explorer.exe
4. Type:
del “%windir%\autorun.inf” /f /a
del “%windir%\smss.exe” /f /a
del “%windir%\killer.exe” /f /a
del “%windir%\Funny UST Scandal.exe” /f /a
del “C:\log” /f /a
del “C:\Documents and Settings\All Users\Start Menu\Programs\Startup\lsass.exe” /f /a
del “D:\autorun.inf” /f /a
del “D:\smss.exe” /f /a
del “D:\Funny UST Scandal.avi.exe” /f /a
*like this for all drives…
5. Type:
TASKMGR
If not working type:
reg delete **********
6. Type:
EXPLORER
If not working type:
reg delete **********
=================
taken from : http://piyushlabs.wordpress.com/smss/

COMPUTER VIRUS

2008-02-26T02:08:00.001-08:00

A computer virus is a computer program that can copy itself and infect a computer without permission or knowledge of the user. However, the term "virus" is commonly used, albeit erroneously, to refer to many different types of malware programs. The original virus may modify the copies, or the copies may modify themselves, as occurs in a metamorphic virus. A virus can only spread from one computer to another when its host is taken to the uninfected computer, for instance by a user sending it over a network or the Internet, or by carrying it on a removable medium such as a floppy disk, CD, or USB drive. Additionally, viruses can spread to other computers by infecting files on a network file system or a file system that is accessed by another computer. Viruses are sometimes confused with computer worms and Trojan horses. A worm can spread itself to other computers without needing to be transferred as part of a host, and a Trojan horse is a file that appears harmless until executed.

Most personal computers are now connected to the Internet and to local area networks, facilitating the spread of malicious code. Today's viruses may also take advantage of network services such as the World Wide Web, e-mail, and file sharing systems to spread, blurring the line between viruses and worms. Furthermore, some sources use an alternative terminology in which a virus is any form of self-replicating malware.

Some viruses are programmed to damage the computer by damaging programs, deleting files, or reformatting the hard disk. Others are not designed to do any damage, but simply replicate themselves and perhaps make their presence known by presenting text, video, or audio messages. Even these benign viruses can create problems for the computer user. They typically take up computer memory used by legitimate programs. As a result, they often cause erratic behavior and can result in system crashes. In addition, many viruses are bug-ridden, and these bugs may lead to system crashes and data loss.

History
The Creeper virus was first detected on ARPANET, the forerunner of the Internet in the early 1970s. It propagated via the TENEX operating system and could make use of any connected modem to dial out to remote computers and infect them. It would display the message "I'M THE CREEPER : CATCH ME IF YOU CAN.". It is rumored[attribution needed] that the Reaper program, which appeared shortly after and sought out copies of the Creeper and deleted them, may have been written by the creator of the Creeper in a fit of regret.

A program called "Elk Cloner" is commonly credited with being the first computer virus to appear "in the wild" — that is, outside the single computer or lab where it was created, but that claim is false. See the Timeline of notable computer viruses and worms for other earlier viruses. It was however the first virus to infect computers "in the home". Written in 1982 by Richard Skrenta, it attached itself to the Apple DOS 3.3 operating system and spread by floppy disk. This virus was originally a joke, created by a high school student and put onto a game. The disk could only be used 49 times. The game was set to play, but release the virus on the 50th time of starting the game. Only this time, instead of playing the game, it would change to a blank screen that read a poem about the virus named Elk Cloner. The poem that showed up on the screen is as follows:

"Elk Cloner: The program with a personality
It will get on all your disks
It will infiltrate your chips
Yes it's Cloner!
It will stick to you like glue
It will modify RAM too
Send in the Cloner!"

The computer would then be infected.

The first PC virus was a boot sector virus called (c)Brain[citation needed], created in 1986 by the Farooq Alvi Brothers, operating out of Lahore, Pakistan. The brothers reportedly created the virus to deter pirated copies of software they had written. However, analysts have claimed that the Ashar virus, a variant of Brain, possibly predated it based on code within the virus.

Before computer networks became widespread, most viruses spread on removable media, particularly floppy disks. In the early days of the personal computer, many users regularly exchanged information and programs on floppies. Some viruses spread by infecting programs stored on these disks, while others installed themselves into the disk boot sector, ensuring that they would be run when the user booted the computer from the disk.

Traditional computer viruses emerged in the 1980s, driven by the spread of personal computers and the resultant increase in BBS and modem use, and software sharing. Bulletin board driven software sharing contributed directly to the spread of Trojan horse programs, and viruses were written to infect popularly traded software. Shareware and bootleg software were equally common vectors for viruses on BBS's. Within the "pirate scene" of hobbyists trading illicit copies of retail software, traders in a hurry to obtain the latest applications and games were easy targets for viruses.

Since the mid-1990s, macro viruses have become common. Most of these viruses are written in the scripting languages for Microsoft programs such as Word and Excel. These viruses spread in Microsoft Office by infecting documents and spreadsheets. Since Word and Excel were also available for Mac OS, most of these viruses were able to spread on Macintosh computers as well. Most of these viruses did not have the ability to send infected e-mail. Those viruses which did spread through e-mail took advantage of the Microsoft Outlook COM interface.

Macro viruses pose unique problems for detection software. For example, some versions of Microsoft Word allowed macros to replicate themselves with additional blank lines. The virus behaved identically but would be misidentified as a new virus. In another example, if two macro viruses simultaneously infect a document, the combination of the two, if also self-replicating, can appear as a "mating" of the two and would likely be detected as a virus unique from the "parents".

A virus may also send a web address link as an instant message to all the contacts on an infected machine. If the recipient, thinking the link is from a friend (a trusted source) follows the link to the website, the virus hosted at the site may be able to infect this new computer and continue propagating.

The newest species of the virus family is the cross-site scripting virus. The virus emerged from research and was academically demonstrated in 2005. This virus utilizes cross-site scripting vulnerabilities to propagate. Since 2005 there have been multiple instances of the cross-site scripting viruses in the wild, most notable sites affected have been MySpace and Yahoo.

nhatquanglan / SCVHSOT / new folder virus / scvshosts

2007-12-11T14:25:00.000-08:00

Virus File Name

New Folder.exe
Size: 192/196KB
virus file version 1,1,1,1
Icon: Folder
SCVHSOT.exe
Size: 192/196KB
Attributes: Hidden+System
virus file version 1,1,1,1
Icon: Folder

scvshosts.exe
Size: 247/248KB
Attributes: Hidden+System
virus file version 2,2,2,2
Icon: Folder

(added on 5Dec,2007)

File Name :SCVVHSOT
Icon :Folder
Type of file :Application
Size :283KB/288KB
Modified :June 10,2007
Attributes :ReadOnly,Hidden,System,Archive
File version :3.2.2.0
CompiledScript :AutoIt v3 Script : 3, 2, 2, 0
File Version :3, 2, 2, 0

etc.

Symptoms

You will find these files in your Windows folder, Shared Documents, etc.
Tools>Folder Option is disabled.
You are unable to see hidden files.
Task Manager is disabled.
Regedit is disabled.
If you are having a LAN connection you will be unknowingly spamming the chat box.
e.g.:
”http://nhatquanglan.xlphp.net/“
”C:\WINDOWS\hinhem.scr”

Behind the Screen

The following files are created:
C:\WINDOWS\SCVHSOT.exe

C:\WINDOWS\SCVVHSOT.exe
C:\WINDOWS\hinhem.scr
C:\WINDOWS\system32\SCVHSOT.exe
C:\WINDOWS\system32\blastclnnn.exe
C:\WINDOWS\system32\autorun.ini
C:\Documents and Settings\All Users\Documents\SCVHSOT.exe

The virus is copied to other comps on the network in the Shared Docs.
\\ABC\SharedDocs\New Folder.exe
\\ABC\SharedDocs\scvshosts.exe
\\ABC\SharedDocs\autorun.inf
Modifies some files in the “Documents and settings” folder.
C:\Documents and Settings\Piyush Chandra\Local Settings\Temporary Internet Files\Content.IE5\index.dat
C:\Documents and Settings\Piyush Chandra\Cookies\index.dat
C:\Documents and Settings\Piyush Chandra\Local Settings\History\History.IE5\index.dat

Modifies some registries at:
\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2\{4c4da22e-f800-11db-8de6-806d6172696f}\BaseClass ,etc.
\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Shell
\Software\Microsoft\Windows\CurrentVersion\Run\Yahoo Messengger
\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\NofolderOptions
\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableTaskMgr
\Software\Microsoft\Windows\CurrentVersion\Policies\System\DisableRegistryTools
\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\Schedule\AtTaskMaxHours
\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Cache
\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\Cache\Paths\ ,etc.
\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Cookies
\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\History
\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ ,etc.
\Software\Microsoft\Windows\CurrentVersion\Internet Settings\GlobalUserOffline
\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Common AppData
\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\AppData
\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ , etc.
\REGISTRY\MACHINE\SYSTEM\ControlSet001\Hardware Profiles001\Software\Microsoft\windows\CurrentVersion\Internet Settings\ProxyEnable
Modifies some system files:
C:\Documents and Settings\Piyush Chandra\Local Settings\Temporary Internet Files\Content.IE5\index.dat
C:\Documents and Settings\Piyush Chandra\Cookies\index.dat
C:\Documents and Settings\Piyush Chandra\Local Settings\History\History.IE5\index.dat
Runs the following commands under DOS (only by the virus version 1,1,1,1):
C:\WINDOWS\system32\cmd.exe /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su C:\WINDOWS\system32\blastclnnn.exe
C:\WINDOWS\system32\cmd.exe /C AT /delete /yes

Solution

End Task(updated on 27/11/2007)
————————Start> run

taskkill /f /t /im “New Folder.exe”

taskkill /f /t /im “SCVVHSOT.exe”

taskkill /f /t /im “SCVHSOT.exe”

taskkill /f /t /im “scvshosts.exe”

taskkill /f /t /im “hinhem.scr”

taskkill /f /t /im “blastclnnn.exe”

Enable Task Manager
——————-
1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 0 /f

Enable Regedit
————–
1. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f
2. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 0 /f

Folder Option & Hidden Files
—————————-
1. Start> run
reg add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
2. Start> run
reg add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 0 /f
3. Start> run
reg add HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v Hidden /t REG_DWORD /d 1 /f
4. Start>run
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 1 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v DefaultValue /t REG_DWORD /d 2 /f
reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v CheckedValue /t REG_DWORD /d 2 /f

reg add HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\NOHIDDEN /v DefaultValue /t REG_DWORD /d 2 /f

Other steps
——————
Delete the files

C:\WINDOWS\SCVVHSOT.exe
C:\WINDOWS\SCVHSOT.exe
C:\WINDOWS\hinhem.scr
C:\WINDOWS\system32\SCVHSOT.exe
C:\WINDOWS\system32\blastclnnn.exe
C:\WINDOWS\system32\autorun.ini
C:\Documents and Settings\All Users\Documents\SCVHSOT.exe

Modify some registries
\REGISTRY\MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\ Shell REG_SZ –> explorer.exe
\Software\Microsoft\Windows\CurrentVersion\Run\ Yahoo Messengger –>delete

Precaution
~~~~~~~~~

Never double click on such files which look like folders, instead use folder view for navigation.
You may like to disable “Shared Documents”.

Source:

http://piyushlabs.wordpress.com/nhatquanglan-new-folder-svchost/