Saturday, December 31, 2011

0 How Can You Make Buffer Overflow The System?

Buffer Overflow your system using batch file.

  • Download text file from here.
  • Save it as buffer.bat
  • Now Open this batch file and you have done.
  • With a little bit knowledge, you can make it more vulnerable.

How To Protect In Cafe/Public Computers While Surfing Internet?

People who surf internet on cafe/public computers, are more vulnerable to be hacked, reason is simple! They are unaware from the software installed on public computers, their privileges. It's always secure to access internet from your personal computers, but some times you have to access it from other places like cafe, your friend computer. So what if you wanna to secure yourself from these hacks? Two things you must keep in mind while surfing from pubic computers:

1. Always prefer to private browsing. Mostly people are unaware from this wonderful feature of browsers. So what is private browsing and how to enable it?
  • Private Browsing allows you to browse the Internet without saving any information about which sites and pages you’ve visited, private browsing do not save Visited pages, History, Passwords, Cookies and Cache files.
  • For enabling it, press Ctrl+Shift+P for firefox and IE users (For chrome use shortcut Ctrl+Shift+N , a prompting window will ask you for starting private browsing.
2. Use On-Screen Keyboard. What to do if you think there is suspicious keylogger installed on system. Don't take risk, use on-screen keyboard. Keyloggers captures information from normal keyboard only. So whenever you do login on your personal internet banking accounts or else, always prefer to use virtual keyboard. You can open it by typing OSK in run.

How To Remotely Log Out Facebook From All Other Computer/Devices?

Sometimes users do login from any unfamiliar computer/cyber cafe & forget to log out or any computer failure occurs. You must not bother about it as you can log out from all other computers without using that computer again. Follow these steps:
  • Login to your facebook.
  • Go to Account> Account Setting> Under Setting tab> Account Security. There you will see something as shown below only if your facebook account is opened from other location otherwise you will see only recent login information.

  •  Click on end activity will log out from all other computers.

Friday, December 30, 2011

Add More Security To Your Google Account Using 2-Step Verification

Hi friends!! Today I'm telling about how you can add more security to your Google account using 2-step verification. 2-step verification is the best way for securing your Google account even if your password is stolen. You can't login to your account unless you have the verification code. Using it, you have to required both password & verification code (Receive on your mobile via SMS) for accessing your Gmail, Orkut services. You must be aware about security provided by Google.
  • Login to your Google account.
  • Open this link https://www.google.com/accounts/SmsAuthConfig
  • Click on Start setup.

    Start Setup
  • Now Set up your phone: Choose appropriate option (me chose Text message (SMS) or voice call under Landline or mobile phone).

    Choose Options
  • Choose your country & Enter your mobile number.
  • Choose the option Send codes by: SMS text message or Voice call (I prefer to SMS text message).
  • Click on Send code under Let's the test phone.
  • You will receive a code via text if you chose SMS text message.
  • Enter code in next field & click on Verify.

    Test The Phone
  • Click on Next.
Your phone is now configured to receive verification codes. Now make backup in the case if you lost your phone or is unavailable.
  • Click on Next.
  • Print Backup verification codes or save it.

    Backup Verification Codes
    Remember: Each backup verification code can be use only once for verification & keep these codes secret. Read the warning under backup verification codes carefully.
  • Check Yes, I have a copy of my backup verification codes & click on Next.
  • Now add another phone number that belongs to you or a trusted friend or family member.
  • Follow the steps as described above for sending code & optional testing.
  • Click on Next.
  • Click on Turn on 2-step verification

    Turn On 2-Step Verification
  • That's all.
When you will sign in to your Google account using user id & password, it will ask for verification code send to your phone. You must require verification code for accessing your account.

Verify
If you didn't receive code, then you can use another ways for getting verification code as shown below.

Choose Another Method To Get A Verification Code

How To Bypass BIOS Passwords?

The basic input-output system BIOS is the first thing you see when you turn on your computer. As in school/college labs, you would have been gone through BIOS passwords on startup, but some users don't like it as it seems weird. Follow these two methods for bypassing BIOS password:


Removing the CMOS Battery

Unplug the PC and remove the battery for 10-15 minutes, the CMOS may reset itself and the password should be blan.

Overloading The KeyBoard Buffer

On some older computer systems, you can force the CMOS to enter its setup screen on boot by overloading the keyboard buffer. This can be done by booting with the keyboard or mouse unattached to the systems, or on some systems by hitting the ESC key over 100 times in rapid succession.

Reset Your Lost BIOS Password Without Removing The CMOS Battery


Now I'm telling you one more trick to reset it without removing CMOS battery.

Follow these steps:
  • Restart your computer in MS-DOS mode.
  • When you get to the C:\> or C:\WINDOWS> command prompt, type DEBUG and press Enter.
  • A hyphen (-) prompt will appear waiting for you to enter commands.
  • Enter the following commands, pressing Enter after each one. Note: the o is the letter o and stands for OUTPUT.
  • o 70 2e 
  • o 71 ff
  • q
  • After the q command (which stands for QUIT), enter Exit.
Then try to enter your BIOS at bootup. The password prompt should now be gone and you should now have full access to it again. However, you will now be at the default BIOS settings and may want to change them to your preference.

Unlimited Buzz In Yahoo! Messenger

Normally once you buzzed in yahoo messenger, it takes around 5-6 seconds to buzz again. So what if you can make buzz continuously to annoying friends, just type <DING> & press Enter. Copy it & then paste again & again.