Manish Beesetti

SPARSE MATRIX

2016-06-16T17:53:00.001+05:30

SPARSE MATRIX

a sparse matrix is a matrix in which most of the elements are zero
In the below program we take a sparse matrix as an input and display another resultant matrix
eg:
| 2(0,0)    0(0,1)   0(0,2)   0(0,3) | | 4 4 4 |
| 0(1,0)   1(1,1)   0(1,2)   0(1,3) | ===> | 2 0 0 |
| 0(2,0)   0(2,1)   3(2,2)   0(2,3) | | 1 1 1 |
| 3(3,0)   0(3,1)   0(3,2)   0(3,3) | | 3 2 2 |
| 3 4 0 | (t+1) X 3
here t is the number of non zero elements
where in the first row   | 4 4 4 |
total rows total columns   total no of non - zero elements

from second row   | 2 0 0 |
non zero its position its position in column
element in row

#include <stdio.h>
#include<conio.h>

void main()
{
int i,j,p,q,a[10][10],t=0;
// here p and q is the number of rows and columns
clrscr();
printf("Enter the order of the matrix : ");
scanf("%d%d",&p,&q);
printf("Enter the elements of the matrix : \n");

//loop for taking elements into the matrix
for(i=0;i<p;i++)
{
for(j=0;j<q;j++)
{
scanf("%d",&a[i][j]);
}//end for j

}//end for i

//loop for printing the matrix
for(i=0;i<p;i++)
{
printf("\n");
for(j=0;j<q;j++)
{
printf("%d\t",a[i][j]);
}//end for j

}//end for i

//loop for counting the number of non zero elements
for(i=0;i<p;i++)
{
for(j=0;j<q;j++)
{
if(a[i][j]!=0)
{
t++;
}//end if
}//end for j

}//end for i
//for printing first row of the matrix
printf("\n\n%d\t%d\t%d\n",p,q,t);
//for printing remaining elements of the matrix
for(i=0;i<p;i++)
{
for(j=0;j<q;j++)
{
if(a[i][j]!=0)
{
printf("%d\t%d\t%d\n",a[i][j],i,j);
}//end if
}//end for j

}//end for i
getch();
}

4. Best Extension Spoofing Technique Tutorial

2016-06-11T15:37:00.002+05:30

4. Best Extension Spoofing Technique Tutorial

Ultimate Extension Spoofing Tutorial. NO DOWNLOADS required !! NO external Tool Needed !! Change the extension of your .exe to .pdf .docx , .mp3 !! Real Method ….. !!

This tutorial will show you how to make your .exe (or .com/.scr) files look like .jpeg/.mp3 or any other filetype (my favourite is .pdf and .docx)!

By normally changing the extension to e.g .mp3, will corrupt your file, but with this exploit your file will still be executable!

Also this is no FUD tutorial . This is just a technique to spoof the extension using the loopholes in windows .

Here is a Step by Step Tutorial :

Extension Spoofing Tutorial

Step 1 : First of all you need the .exe file you want to spoof the extension of . Let this file be resume.exe

There is no limit that this file must be an .exe . It can also be a resume.scr or resume.com . This technique will work as you want it to . Using this technique you will be able to spoof any extension available on the windows platform to any other extension .

Step 2 : Now lets start the real spoofing extension .

Open the windows Character map by going to start as shown in the Image.

Extension Spoofing Tutorial -1

Step 3 :The next thing we need to here is to scroll down and find the “U+202E: Right-To-Left Override”character:

Refer to the image in case of any confusion . This might be time taking to find for some but if you read the image carefully then you might find this char set easily .

Extension Spoofing Tutorial -2

Step 4 :Now choose to rename your file, and paste the copied character right before the “.scr” (press ctrl+v to paste)

Now exe is same as exe when we apply the char set due to obvious reasons . So I have taken the example of .scr file . This technique works for exe the same way .

Step 5 :Then type “3pm” (without the ” “) and press Enter. Now it should look like this:

resume by RCS.mp3

Done …. That simple to spoof the extension . So you no longer need to pay for extension spoofers now !!!

This is the Simplest Extension Spoofer !!

This is a Free give away technique for penetration testers and ethical hackers purely for educational purposes . Do not Misuse . Hope you all have enjoyed Extension Spoofing Tutorial

3. How to Watch Security Cameras on the Internet :

2016-06-11T15:36:00.002+05:30

3. How to Watch Security Cameras on the Internet :

1-Open your browser.
2-Go to http://www.google.com
3-Copy paste a code and put it in google click enter and bam you will get some cameras by clicking on the search links .

Here I have accumulated a list of Google Dorks that can be used to explore some of the IP cams that can be accessed Online without any Authentication .

inurl:/view.shtml
 intitle:”Live View / – AXIS” | inurl:view/view.shtml^
 inurl:ViewerFrame?Mode=
 inurl:ViewerFrame?Mode=Refresh
 inurl:axis-cgi/jpg
 inurl:view/index.shtml
 inurl:view/view.shtml
 liveapplet
 intitle:liveapplet
 allintitle:”Network Camera NetworkCamera”
 intitle:axis intitle:”video server”
 intitle:liveapplet inurl:LvAppl
 intitle:”EvoCam” inurl:”webcam.html”
 intitle:”Live NetSnap Cam-Server feed”
 intitle:”Live View / – AXIS 206M”
 intitle:”Live View / – AXIS 206W”
 intitle:”Live View / – AXIS 210″
 inurl:indexFrame.shtml Axis
 intitle:start inurl:cgistart
 intitle:”WJ-NT104 Main Page”
 intitle:snc-z20 inurl:home/
 intitle:snc-cs3 inurl:home/
 intitle:snc-rz30 inurl:home/
 intitle:”sony network camera snc-p1″
 viewnetcam.com
 intitle:”Toshiba Network Camera” user login
 intitle:”i-Catcher Console – Web Monitor”

Here is a Screenshot :

How to Watch Security Cameras on the Internet

You can modify these dorks as per your needs during a penetration test on an organisation . Consider when you might be doing Penetration testing for a Bank or a multinational that has lots of IP cameras with remote access over internet enabled , this might be the First Loophole to report .

So friends you enjoyed our tutorial “How to Watch Security Cameras on the Internet” .. If yes don’t forget to say thanks.

GoPhish : Open Source Phishing Toolkit

2016-06-11T15:35:00.000+05:30

2. GoPhish : Open Source Phishing Toolkit

Everyone needs to conduct phishing attacks to see the organisation’s defence against Phishing during a penetration test . Here is an Open source Solution : GoPhish.

Gophish is an open source phishing toolkit designed for businesses and penetration testers. It provides the ability to quickly and easily set-up and execute phishing engagements and security awareness training.

What is Gophish?

Gophish is a phishing framework that makes the simulation of real-world phishing attacks dead-simple. The idea behind gophish is simple – make industry-grade phishing training available to everyone.

“Available” in this case means two things –

Affordable – Gophish is currently open-source software that is completely free for anyone to use.

Accessible – Gophish is written in the Go programming language. This has the benefit that gophish releases are compiled binaries with no dependencies. In a nutshell, this makes installation as simple as “download and run”!

The idea of a phishing simulation platform isn’t new. Let’s take a look at some of the features that really set gophish apart and make it awesome.

Hosted On-Prem

There are many commercial offerings that provide phishing simulation/training. Unfortunately, these are SaaS solutions that require you to hand over your data to someone else.

Gophish, an Open Source Phishing Toolkit is different in that it is meant to be hosted in-house. This keeps you data where it belongs – with you.

GoPhish Phishing Toolkit

Installing Gophish Using Pre-Built Binaries

Gophish is provided as a pre-built binary for most operating systems. With this being the case, installation is as simple as downloading the ZIP file containing the binary that is built for your OS and extracting the contents.

To install gophish, simply run

go get github.com/gophish/gophish

This downloads gophish into your

$GOPATH.

Next, navigate to

$GOPATH/src/github.com/gophish/gophish

and run the command

go build

This builds a gophish binary in the current directory.

Running Gophish

Now that you have gophish installed, you’re ready to run the software. To launch gophish, simply open a command shell and navigate to the directory the gophish binary is located. Then, execute the gophish binary. You will see some informational output showing both the admin and phishing web servers starting up, as well as the database being created. This output will tell you the port numbers you can use toconnect to the web interfaces.

 $ ./gophish
 worker.go:34: Background Worker Started Successfully - Waitingfor Campaigns
 models.go:64: Database not found... creating db at gophish.db
 gophish.go:49: Admin server started at http://127.0.0.1:3333
 gophish.go:51: Phishing server started at http://0.0.0.0:80

Enjoy !!

#To be used only for Authorized Penetration Testing .

How to Watch Security Cameras on the Internet : Camera hacking is not very new for hacker community . Due to mis-configuration in the Camera security , the cameras that can be accessed over the internet can be viewed by anyone without any Authentication . Though there is no real hacking in this but its somewhat nice to explore .

I would use this to explain the necessity of security configuration for IP cams . The Cams that have been used to provide the security , are now accessible to anyone without any authentication , and have become the biggest security Loophole.

The hacking tutorial section is now full of useless threads,The worst of all most of them are questions and other shits.
So yeah here i am writing a new tutorial trying to make this section back to what it used to be.

====================
Pro Tip :

Secure yourself before doing this.

This is Purely for Educational Purposes and Dangerous . Don’t Access Password Protected Cameras
====================

1 . Are Android App Lockers really Secure ?

2016-06-11T15:31:00.002+05:30

1 . Are Android App Lockers really Secure ?

Android has been a common target for Exploit Community . This Post describes how a few simple steps can be taken to bypass the App Locker .

App Lockers are used by most of us to protect our Androids from unwanted or unauthorized access of our personal information. If you do a quick search of the phrase “app lock” in Google Play Store you will find lots of application provide facility to protect individual and multiple application. But with few steps anyone can bypass the same:

Here is the steps :

Step 1. Install any App locker from play store.

Step 2. Provide password to the similar App locker.

Now the application protected with app locker require password of app locker. Now perform the following steps to bypass the app locker password.

Step 3. Now go to setting

Step 4. Then Application

Step 5 :Select your App Locker.

Step 6. Now click on Clear data button.

Step 7. Now click on Force stop button.

Step 8. Finish

Now open any application which is protected with app locker without credential.

This technique has been sitting right under your nose for so long . This is not a vulnerability in Android or the App locker . This is just a trick to show you that you must not completely rely on App Lockers and set a strong Password for your Android Screen Lock as well.

HACKING TRICKS !

2016-06-11T15:21:00.000+05:30

1 . Are Android App Lockers really Secure ?

Android has been a common target for Exploit Community . This Post describes how a few simple steps can be taken to bypass the App Locker .

App Lockers are used by most of us to protect our Androids from unwanted or unauthorized access of our personal information. If you do a quick search of the phrase “app lock” in Google Play Store you will find lots of application provide facility to protect individual and multiple application. But with few steps anyone can bypass the same:

Here is the steps :

Step 1. Install any App locker from play store.

Step 2. Provide password to the similar App locker.

Now the application protected with app locker require password of app locker. Now perform the following steps to bypass the app locker password.

Step 3. Now go to setting

Step 4. Then Application

Step 5 :Select your App Locker.

Step 6. Now click on Clear data button.

Step 7. Now click on Force stop button.

Step 8. Finish

Now open any application which is protected with app locker without credential.

This technique has been sitting right under your nose for so long . This is not a vulnerability in Android or the App locker . This is just a trick to show you that you must not completely rely on App Lockers and set a strong Password for your Android Screen Lock as well.

2. GoPhish : Open Source Phishing Toolkit

Everyone needs to conduct phishing attacks to see the organisation’s defence against Phishing during a penetration test . Here is an Open source Solution : GoPhish.

Gophish is an open source phishing toolkit designed for businesses and penetration testers. It provides the ability to quickly and easily set-up and execute phishing engagements and security awareness training.

What is Gophish?

Gophish is a phishing framework that makes the simulation of real-world phishing attacks dead-simple. The idea behind gophish is simple – make industry-grade phishing training available to everyone.

“Available” in this case means two things –

Affordable – Gophish is currently open-source software that is completely free for anyone to use.

Accessible – Gophish is written in the Go programming language. This has the benefit that gophish releases are compiled binaries with no dependencies. In a nutshell, this makes installation as simple as “download and run”!

The idea of a phishing simulation platform isn’t new. Let’s take a look at some of the features that really set gophish apart and make it awesome.

Hosted On-Prem

There are many commercial offerings that provide phishing simulation/training. Unfortunately, these are SaaS solutions that require you to hand over your data to someone else.

Gophish, an Open Source Phishing Toolkit is different in that it is meant to be hosted in-house. This keeps you data where it belongs – with you.

GoPhish Phishing Toolkit

Installing Gophish Using Pre-Built Binaries

To install gophish, simply run

go get github.com/gophish/gophish

This downloads gophish into your

$GOPATH.

Next, navigate to

$GOPATH/src/github.com/gophish/gophish

and run the command

go build

This builds a gophish binary in the current directory.

Running Gophish

 $ ./gophish
 worker.go:34: Background Worker Started Successfully - Waitingfor Campaigns
 models.go:64: Database not found... creating db at gophish.db
 gophish.go:49: Admin server started at http://127.0.0.1:3333
 gophish.go:51: Phishing server started at http://0.0.0.0:80

Enjoy !!

#To be used only for Authorized Penetration Testing .

====================
Pro Tip :

Secure yourself before doing this.

This is Purely for Educational Purposes and Dangerous . Don’t Access Password Protected Cameras
====================

3. How to Watch Security Cameras on the Internet :

1-Open your browser.
2-Go to http://www.google.com
3-Copy paste a code and put it in google click enter and bam you will get some cameras by clicking on the search links .

Here I have accumulated a list of Google Dorks that can be used to explore some of the IP cams that can be accessed Online without any Authentication .

inurl:/view.shtml
 intitle:”Live View / – AXIS” | inurl:view/view.shtml^
 inurl:ViewerFrame?Mode=
 inurl:ViewerFrame?Mode=Refresh
 inurl:axis-cgi/jpg
 inurl:view/index.shtml
 inurl:view/view.shtml
 liveapplet
 intitle:liveapplet
 allintitle:”Network Camera NetworkCamera”
 intitle:axis intitle:”video server”
 intitle:liveapplet inurl:LvAppl
 intitle:”EvoCam” inurl:”webcam.html”
 intitle:”Live NetSnap Cam-Server feed”
 intitle:”Live View / – AXIS 206M”
 intitle:”Live View / – AXIS 206W”
 intitle:”Live View / – AXIS 210″
 inurl:indexFrame.shtml Axis
 intitle:start inurl:cgistart
 intitle:”WJ-NT104 Main Page”
 intitle:snc-z20 inurl:home/
 intitle:snc-cs3 inurl:home/
 intitle:snc-rz30 inurl:home/
 intitle:”sony network camera snc-p1″
 viewnetcam.com
 intitle:”Toshiba Network Camera” user login
 intitle:”i-Catcher Console – Web Monitor”

Here is a Screenshot :

How to Watch Security Cameras on the Internet

So friends you enjoyed our tutorial “How to Watch Security Cameras on the Internet” .. If yes don’t forget to say thanks.

4. Best Extension Spoofing Technique Tutorial

Ultimate Extension Spoofing Tutorial. NO DOWNLOADS required !! NO external Tool Needed !! Change the extension of your .exe to .pdf .docx , .mp3 !! Real Method ….. !!

This tutorial will show you how to make your .exe (or .com/.scr) files look like .jpeg/.mp3 or any other filetype (my favourite is .pdf and .docx)!

By normally changing the extension to e.g .mp3, will corrupt your file, but with this exploit your file will still be executable!

Also this is no FUD tutorial . This is just a technique to spoof the extension using the loopholes in windows .

Here is a Step by Step Tutorial :

Extension Spoofing Tutorial

Step 1 : First of all you need the .exe file you want to spoof the extension of . Let this file be resume.exe

Step 2 : Now lets start the real spoofing extension .

Open the windows Character map by going to start as shown in the Image.

Extension Spoofing Tutorial -1

Step 3 :The next thing we need to here is to scroll down and find the “U+202E: Right-To-Left Override”character:

Refer to the image in case of any confusion . This might be time taking to find for some but if you read the image carefully then you might find this char set easily .

Extension Spoofing Tutorial -2

Step 4 :Now choose to rename your file, and paste the copied character right before the “.scr” (press ctrl+v to paste)

Now exe is same as exe when we apply the char set due to obvious reasons . So I have taken the example of .scr file . This technique works for exe the same way .

Step 5 :Then type “3pm” (without the ” “) and press Enter. Now it should look like this:

resume by RCS.mp3

Done …. That simple to spoof the extension . So you no longer need to pay for extension spoofers now !!!

This is the Simplest Extension Spoofer !!

This is a Free give away technique for penetration testers and ethical hackers purely for educational purposes . Do not Misuse . Hope you all have enjoyed Extension Spoofing Tutorial

How TO Use Whats App Without Phone Number ?

How to use WhatsApp without any Phone Number ? WhatsApp requires your mobile number in order to create a WhatsApp account, if you don’t want to use your phone number for some reasons, you can still use WhatsApp, send/receive messages from it.

How to WhatsApp without any Phone Number? Well, here are the steps:

Uninstall WhatsApp if already installed in your mobile phone but you can keep WhatsApp images/video files.
Download and Install WhatsApp again.
Block your message service by simply shifting to flight mode. Now, open WhatsApp and add your number to it. So, it will not able to send message to server and verify your mobile number.
As verification is still incomplete and messages are blocked, Whatsapp will ask you to choose alternative method to verify. Choose ‘Verify through SMS’ and enter your email address. Click ‘Send’ and without waiting for a second, click ‘Cancel’. This terminates the authorization process.
Now, you are required to spoof message. Install Spoof Text Message for Android and Fake-a-Message for iPhone.
Go to your Outbox -> Copy the message details to spoofer app -> Send it to spoofed verification.
Use these details in your spoofed message: To: +447900347295 From: +(Country code)(mobile number) Message: Your email address
A message will be sent to that spoofed number and you can now use this number to connect with friends.

Thank you :)

4. View Hidden Files Created by Malware

Malware infects almost everyone at some point . The malware can be in any form : a Trojan , a Virus . a Worm etc . What files a malware will create and with what attributes completely depends on the Malware family and its behavior . Sometimes there are difficulties in locating the files created / dropped by the malware after the computer has been infected . Well to locate these dropped files , no geeky stuff needs to be done . Here is a Simple Trick :

Requirements :

Command prompt : The command line interpreter built into windows itself . All you need for this tutorial is command prompt .

Tutorial :

In this tutorial for the sake of Simplicity lets take an infected USB and try to clean it . The same method applies to other drives of your computer as well . Take a Screenshot of the files in the USB drive so that latter we know what hidden files we have discovered .

Open Command prompt ( preferably run as Administrator )

attrib -H -S E:\* /S /D

Description of the Command :

attrib : Displays or changes file attributes.

– : Clears an attribute.

H : Hidden file attribute.

S : System file attribute.

E:\* : Drive of the USB with * as wildcard that means process all files.

/S : Processes matching files in the current folder and all sub folders.

/D : Processes folders as well.

The files that you see now in the USB drive are the files created with a Hidden and System attribute by the Virus quiet commonly . Also there is no reason why one would have files with such attributes on a USB drive , although explicitly done .

What Else can I do to Identify and get Rid of the Virus files :

Open Process explorer . Monitor what unwanted processes you have running .

Look for the Processes with similar names to that of the files you have just discovered .

If needed download the Sys Internals suite of tools for further help . Use the Process monitor in by Sys Internals to analyze the rouge Process .

Look into the registry for any unwanted startup Entries

Check Start up configuration of windows using msconfig in Run box.

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5.How to instantly logout of all active online accounts

Hello Friends, today i am going to share a trick which you can use to instantly logout of almost all active online accounts from famous websites which we regularly use. I recently came accross a website which logouts you from more than 30+ famous sites in a single click. This is really helpful, when you have to close all accounts at a go, so that there will be no risk that you have left something opened on your machine.

Superlogout is a website you can use to instantly logout of all active online accounts.

If you visit a Internet Cafe for surfing, use public Wi-Fi or have this odd habit of logging out of all online accounts at the end of each day. We bring to you a website called Superlogout.

Superlogout which can be visited www.superlogout.com is a great tool for people who surf the Internet using public Wi-Fi or Internet Cafes.

Note: Once clicked, this will log you out instantly from all your online accounts

As soon as you visit Superlogout, it will automatically get to work logging you out of a few dozen major services including Amazon, Google, Netflix, Steam, Tumblr, and YouTube.

Once you’re logged out, the site will display a green “OK” next to each service.

For some reasons the developer of Superlogout has not included Facebook, but it’s a quick way to log out of many sites at once.

THANK YOU!! :D

6.Tips to fix Windows 10 slow boot up issues

Fix Windows 10 slow boot up issues : Microsoft has rolled out windows 10 very recently but lot of users are facing slow boot up issues. Today we will learn how to fix Windows 10 slow boot up issues with simple tips and tricks.

Step 1: Run a thorough antivirus scan

I would advise you to update your antivirus and scan your PC thoroughly. Most you would have performed an upgrade from Windows 7 or 8 to Windows 10. So, there are chances that older malicious programs and virus could be the reason behind Windows 10 slow boot-up issue.

Step 2: Disable software and services from Startup

open the Task Manager by using the famous Ctrl, Shift and Esc – or by right-clicking on the Task Bar.

In the Task Manager, click on the Startup tab and disable the items with Highrating in the Startup impact rating.

However, you are advised to keep your antivirus software enabled.

Note that you can disable your Nvidia and AMD graphics driver from the startup without affecting the graphics performance of yours system.

Step 3: Enable FastStartup

In Windows 10, Microsoft enables the fast boot-up option and shutdown times using the special Hybrid Startup and Shutdown option. These options put the system into hibernation state and fixes the Windows 10 slow boot-up issue.

To make this change, you can either ask Cortana to “Open power options“- or you can launch the Control Panel and then head to the Power Options.

Under the Power Options, click on Choose What The Power Button Does from the left-hand side, then click Change Settings That Are Currently Unavailable.

Now you will be greeted with the list of options that were previously hidden. Here tick on the checkbox that says Turn On Fast Startup and save the changes.

Step 4: Use the Delayed Start for services

After step 3, restart your Windows 10 PC and press Windows Key+R to reveal the Run box.

Here type services.msc and hit Enter.

This will open a list of services that you need to scan to find the services that seem to be causing the Windows 10 slow boot-up issue.

Right-click on those, open them, and change the setting from default to delayed start. Now, click save and exit the window.

This is it. Now you can restart your PC to witness a lot faster boot-up.

Thank You!! [J-BOY] :)

7.Remove all empty folders from your computer

Most of our users have requested us about how to improve performance of system. Today i will share a way to improve system performance. Today we will learn how to remove all empty folders from your computer. Why do you wanna have empty folders for no use? They only degrade performance by adding additional load to indexing.

You can download software if you are tired to search and remove all empty folders. This program does a great job by deleting all empty folders and saving our time.

The software scans the computer for empty folders and also provides results in tree format, we can even analyze icon description as well as a color description (example:red: will be deleted, blue: protected and gray: will not be deleted)

Step1: Download, install, and run Remove Empty Folders.

Step2: Now click Browse… button and specify the target location

Step3: Click Scan button and wait for couple of seconds (depends upon our computer speed)

Step4: On right side of the software you can see the list of empty folders

Step5: Right-click on a folder to Open in Explorer, Protect or Add to Ignore list

Step6: Click Delete folders to delete all the empty folders.

You can also skip the directories or ignore the files from the settings dialog :

Block WhatsApp photos from Gallery

Pictures that you receive on WhatsApp are automatically stored in your phone’s Gallery, exposing them to anyone who browses photos on your phone.

In iPhone, go to the phone’s Settings menu>>Privacy>>Photos>>and then uncheck it After that WhatsApp will restrict this.

For Android users it’s a bit complicated.

Using a file explorer app such as ES File Explorer,

Go to WhatsApp’s Images and Videos folders and create a file within each called .nomedia. This will stop Android Gallery app from scanning the folder.

If not download KeepSafe app from the play store and hide the selected pics and videos.

Restrict access to your profile picture

Set profile picture sharing to contacts only>>in the Privacy menu to restrict your WhatsApp profile photo from unknown users and the people who are not in your contacts.

Beware of WhatsApp scams

WhatsApp will never contact users through the app and does not send emails about chats, voice messages, payment, changes, photos, or videos, unless you contact their help and support.

Anyone offering a free subscription, claiming to be from WhatsApp or encouraging you to follow links in order to safeguard your account is definitely a scam and should not be trusted. These links could lead to websites that install malware and spyware or track your personal details.

7.Deactivate WhatsApp if you lose your phone

If you lose your smartphone, immediately activate WhatsApp with the same phone number on a different phone, with a replacement SIM.

One of the basic security measures that WhatsApp takes is that the app can only be used by one number on one device at a time, so by doing so you instantly block it from being used on your old phone. If that’s not possible, WhatsApp can also deactivate your account.

Keep the WhatsApp app locked

WhatsApp doesn’t offer a built-in password or pin, you can use third party apps like Messenger and Chat Lock, Lock for WhatsApp and Secure Chat if you use an Android phone. This will help you from exposing your private chats, photos and videos from others who steal your smartphone or take it from you.

Hide the ‘last seen’ timestamp

WhatsApp’s much disliked last seen feature can also be disabled, it could help prevent your stalker know what time you were last online.

You can disable or restrict who sees your ‘last seen’ time in WhatsApp’s Profile>> Privacy menu, in Android,

iOS, Windows or Blackberry. However, if you turn it off, you won’t be able to see other users’ ‘last seen’ times either.

Be careful of what you talk about

You should not share confidential information, addresses, phone numbers, email addresses, bank or credit card details, or passport or other identification details on WhatsApp.

A man in the middle attack could lead to this information being compromised. WhatsApp has introduced end-to-end encryption for its Android users but other platforms are still vulnerable.

That’s all for today! We will discuss more whatsapp tips and tricks in future articles.

8.Immediate Self Destruction On Kali Linux in Emergency

Vanshit Malhotra August 22, 2015 Hacking Tricks, Penetration Testing, Security Tips, System Hacking

During a penetration test , one needs to download and store the confidential data related to an organisation . Kali Linux comes with an Option to be Installed with full disk encryption .Hence its advisable to have a full disk encryption enabled on the Kali Linux machine in order to protect the sensitive information .

Full disk encryption is easy to setup in Kali Linux. A detailed doccumentation of how to install a Kali Volume with Full Disk Encryption can be found here .

The Kali installer comes with a straightforward process for setting up encrypted partitions with LVM and LUKS. Once encrypted, the Kali operating system requires a password at boot time to allow the OS to boot and decrypt your drive, thus protecting this data in case your laptop is stolen.

One can manage decryption keys and partitions by using the cryptsetup utility.

Nuking Kali Linux Installation for emergencies

Often one might need to destroy all the contents of the encrypted hard-drive in certain scenarios to avoid data leakage of sensitive information. Kali linux makers have introduced the option . Kali Linux now allows to gave a Boot Password the would allow the destruction , rather than decryption of the data on your drive .

This is done by adding the Nuke Password to the cryptosystem . This Nuke Password when used will delete all the keyslots and makes the data on the hard-drive inaccessible .

The Kali Linux has not yet officially introduce the feature in the version releases and hence one must use this feature at their own risk (hackingloops.com holds no liabilities) .

If you wish to try this feature , the following are the build Instructions .
One can start by running the LVM encrypted installation in Kali Linux and set a Decryption Password . Once this is completed , download the crypto setup package source and apply the Kali Linux patch on it .

Proceed as folllows :

root@kali:~# apt-get source cryptsetup
 root@kali:~# git clone https://github.com/offensive-security/cryptsetup-nuke-keys
 root@kali:~# cd cryptsetup-1.6.1/
 root@kali:~/cryptsetup-1.6.1# patch -p1 &lt; ../cryptsetup-nuke-keys/cryptsetup_1.6.1+nuke_keys.diff
 patching file lib/libcryptsetup.h
 patching file lib/luks1/keymanage.c
 patching file lib/setup.c
 patching file src/cryptsetup.c
 root@kali:~/cryptsetup-1.6.1# dpkg-buildpackage -b -uc

This will build and install the cryptosystem packages in order to get the Nuke option implemented .

root@kali:~/cryptsetup-1.6.1# ls -l ../*crypt*.deb
 -rw-r--r-- 1 root root 149430 Jan 4 21:34 ../cryptsetup_1.6.1-1kali0_amd64.deb
 -rw-r--r-- 1 root root 250616 Jan 4 21:34 ../cryptsetup-bin_1.6.1-1kali0_amd64.deb
 -rw-r--r-- 1 root root 105226 Jan 4 21:34 ../libcryptsetup4_1.6.1-1kali0_amd64.deb
 -rw-r--r-- 1 root root 49580 Jan 4 21:34 ../libcryptsetup-dev_1.6.1-1kali0_amd64.deb
 root@kali:~/cryptsetup-1.6.1# dpkg -i ../libcryptsetup*.deb
 root@kali:~/cryptsetup-1.6.1# dpkg -i ../cryptsetup*.deb

Now that our patched cryptsetup package has been installed, we can go ahead and add a “nuke” key to our setup:

root@kali:~# cryptsetup luksAddNuke /dev/sda5
 Enter any existing passphrase: (existing passphrase)
 Enter new passphrase for key slot: (nuke passphrase)

On any subsequent reboots, you will be asked for the LUKS decryption password each time as usual. If for whatever reason, you were to enter the nuke password, the saved keys would be purged rendering the data inaccessible.

How To Write A Simple 'C' Program ?

2016-06-09T18:00:00.000+05:30

How To Write A Simple 'C' Program ?

programming is learnt by doing it not by reading concerning it.learning a artificial language is like learning the way to ride a cycle.You got to undertake it. you would possibly slip a couple of times and get hurt conjointly, how ever ultimately you'll learn it.The same is the true with with the programming. You have to write programs to learn programming. Do not worry and do not be afraid of programming. It is a wonderful world. The more you do , the more you enjoy -take my word. Now let us write our first C program. The following is a simple C program to display the given message on the screen.

I recommend Code Blocks as it is User Friendly Compared to Turbo C or Turbo C++.

Since it is a first program i am going to explain how to use Code Blocks.

If you don't have Code Blocks Download From{>>>HERE!<<<}

STEP 1 :Open the Code Blocks IDE !

STEP 2: Go-to File Menu Select Empty File.

STEP 3: Save the file! I recommend Saving the file with a suitable name related to the program you are writing.So basically we are writing C programming so save the file With name.C where ' .C ' is the extension.

STEP 4: Write the program !! the program written below follows the basic syntax.

the syntax of the functions printf( ), main(), Will be explained in further posts.

but For now printf(" ");

displays whatever written in the double Quotes.

STEP 5: After writing the program you have to compile or build(Ctrl + F9) the program, code blocks being an intelligent IDE give errors you can see them after you click the highlighted icon in the image below. if no errors proceed if you find errors correct them and then run(Ctrl + F10).

Explanation of The C program!

LINE 1: /*Program to Display a message on the screen*/

It is a comment or remark. We give comments to make Program more readable.Comments in C start with /*(slash and asterisk) and with */(asterisk and slash) Combination. A comment can be given in multiple lines also.

LINE 2: #include

This is a Processor Command. #include command is used to copy the contents of the given file into your program. In this example #include is used to include the contents of stdio.h header file. Though this is not mandatory it is better to include the header file ( .h files are called as header files )

using #include command. We will discuss more about #include in My Post About Header files

LINE 3: main( )

Each C Program starts with a function called main. Program's Execution starts with main function and ends with main function . All the remaining functions

( standard and user defined functions) are called from main functions. When main function is terminated , the program is deemed to be terminated.

LINE 4-Line 8 : {........}

Each function contains a set of instructions enclosed in { }(braces). The statements given between braces will be executed when function is executed whenever you run a C program , all the statements given between { } of main function will be executed. A set of statements enclosed within { } are also called as a BLOCK. In other Words For each function you have a block and that block is executed whenever the function is called.

LINE 4 starts the BLOCK and LINE 8 Ends the Block.

LINE 6: printf( " " );

Function printf() is a standard function in C language. It is used to display the given values on to standard output device (Screen or Projector etc.).

Whatever value is given in double Quotes (" ") it is called as string literal. When a string literal is passed to pintf function , it will print it as it is. When you supply values to function , you have to supply values to function , you have to supply values by enclosing them in parenthesis So, the values that is to be displayed by printf is given within parenthesis.

Every statement in C is to be terminated with ( ; ) That is why there is a semicolon at the end of the statement.

That is about the first program we have written in this blog.

Later in this We will learn how to enhance display using escape sequence characters.

OUTPUT:

Brief History of ' C '

2016-06-09T11:32:00.005+05:30

Brief History of ' C '

C is a general-purpose programming language which features economy of expression, modern control flow and data structures, and a rich set of operators. C is not a "very high level" language, nor a "big" one, and is not specialized to any particular area of application. But its absence of restrictions and its generality make it more convenient and effective for many tasks than supposedly more powerful languages.

The history of C programming language is quite interesting. C was originally designed for and implemented on the UNIX operating system on the DEC PDP-ll, by Dennis Ritchie. C is the result of a development process that started with an older language called BCPL. BCPL was developed by Martin Richards, and it influenced a language called B, which was invented by Ken Thompson. B led to the development of C in the 1970s.

For many years, the de facto standard for C was the version supplied with the UNIX operating system. In the summer of 1983, a committee was established to create an ANSI (American National Standards Institute) standard that would define the C language. The standardization process took six years (much longer than anyone reasonably expected).

The ANSI C standard was finally adopted in December 1989, with the first copies becoming available in early 1990. The standard was also adopted by ISO (International Standards Organization), and the resulting standard was typically referred to as ANSI/ISO Standard C. In 1995, Amendment 1 to the C standard was adopted, which, among other things, added several new library functions. The 1989 standard for C, along with Amendment 1, became a base document for Standard C++, defining the C subset of C++. The version of C defined by the 1989 standard is commonly referred to as C89.

During the 1990s, a new standard for C was being developed. It was the 1999 standard for C, usually referred to as C99. In general, C99 retained nearly all of the features of C89. The C99 standardization committee focused on two main areas: the addition of several numeric libraries and the development of some special-use, but highly innovative, new features, such as variable-length arrays and the restrict pointer qualifier. These innovations have once again put C at the forefront of computer language development.

C89 is the version of C in widest use, it is currently accepted by all C compilers, and it forms the basis for C++.

Hope you have enjoyed reading C programming language's history of evolution. Please do send suggestion if you have any or comment if you come across any error on this page. Thanks for reading!

Lets start with 'C'

2016-06-08T13:03:00.004+05:30

Let's Start With 'C'

In my opinion, 'C' is the first language one should understand.It teaches programming and prepares you for complex languages such as C++, JAVA and C#.It is very important to learn this language to lay a solid foundation in programming.

Programming is fun. How ever , not everyone Who wants to be a programer would realise it, because some lack efforts and some lack direction. This is for people who don't know till what extent to work on basic ' C ',I am posting these keeping beginers in mind. The order of the further posts will be the order in which you will better understand these topics.

What is 'C' language ?

C , is a general-purpose programming language. A programming language is used to write programs . A program is a collection of instructions that accomplishes a particular task. For example , a program may find out the highest number out of 10 numbers ,another program may display the contents of a file on the screen and so on .The task that a program accomplishes may just be anything - from very complicated to trival . C is one of the most widely used programming languages.

C is called as middle - level languages because it contains the features of high - level languages such as Pascal and low - level languages - Assembly languages . C allows the programmer to access system resources directly , any feature only available in Assembly language. For example ,a program written in Assembly language can directly access a location in memory , a sector of the directly access a location in memory , a sector of the diskette , and send data through the serial port of the machines, etc. C also has feature that are commonly found only in high-level languages like Coblo, Pascal , etc. For example ,a program written in 'C'

is portable it means ,it can run on any machine and any operating system , as long as a compiler of C is available on the target machine.

Why To Code

2016-06-06T00:18:00.001+05:30

Five years ago, the answer to "why learn to program" may have been simple: to get a nice, cushy job with beanbag chairs and a six-figure salary. Recently, the job market for programmers has lost some of its previous luster--no longer can anyone and his dog start a tech company, get venture capital, and pay programmers a combination of stock options and worth millions and a high salary.

This seems to have taken its toll on the number of prospective programmers; at some colleges, intro computer science classes are at all-time lows in attendance. This is a real shame because programming isn't really about making the big bucks. Though you will certainly be well paid if you are very good, your doctor friends are unlikely to be jealous of your finances once they pay off their medical school loans.

They will, however, be envious of the intangibles.

Be The Creator

When you program, you are a creator. You go from a blank text file to a working program with nothing to limit you but your imagination (and maybe some issues like how long your program takes to run). Programming is like having access to the absolute best set of legos in the world in almost unlimited qualities. Even better, you can get all of your building materials completely for free (once you own a computer) on the internet. Amazing!

It's also great fun to see someone using something that you made. Your ability to improve your life and the lives of your friends and family is limited only by your ideas once you can take full control of your computer. Moreover, your work can be extremely high quality because the limiting factor is not manual dexterity or other non-mental attributes. If you can understand a programming technique, you can implement and use it.

Automation

Programmers are famous for being lazy--in fact, being lazy is one reason people are drawn to programming. After all, why do something routine and repetitive when you could have your computer do it for you? Programmers have written all sorts of simple-to-use tools that make life easier for them--especially tools to manage the complexity of creating software (for instance, tools to help keep track of all the ways of making a program, or debugers to help improve their understanding of a running program).

But more than that, every programmer has a collection of simple tools that he or she uses on a day-to-day basis, from custom calendar reminder programs to processors for large data sets (especially useful for scientists!). Indeed, the physics community has a history of writing powerful tools that make their lives easier--one tool, HTML over HTTP, created by Tim Berners Lee, eventually became the world wide web. It was originally designed by a physicist programmer coming up with ways of simplifying his life.

Respect And Can Rejoice 'Why ?'

People are often frustrated by technology when it fails. Although operating systems such as Windows have become much more stable, there are still many security holes exploited every day. For a non-programmer, these issues are mysteries: the machine that never makes mistakes is full of problems, and who knows why?

Programmers, on the other hand, are familiar with the limits of the machine--what happens inside the computer when it takes several minutes to open large files, why a particular security hole is a problem, and why it's so difficult to get large-scale software projects right.

They understand it because they've dealt with most of these issues in their own programs and work with the ``stuff'' of the machine (to varying degrees across different programming languages). This can lead to some exciting finds, such as realizing how you can earn thousands of dollars in Windows solitaire set to Las Vegas style. Maybe not as good as earning real money, but how many of your friends have made $32K on under an hour playing cards?

In sum, programming lets you work with your mind to free yourself to create things that are interesting or useful instead of being limited by the confines of what others have done before, and even when using those other things, you'll find that you can better appreciate and understand them.

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