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Showing posts with label Viras Tips. Show all posts
Showing posts with label Viras Tips. Show all posts

Tuesday, 21 August 2012

Binders and Crypters to make your virus file FUD

In cryptography, encryption is the process of transforming information (referred to as plaintext) using an algorithm (called a cipher) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key. The result of the process is encrypted information (in cryptography, referred to as ciphertext). In many contexts, the word encryption also implicitly refers to the reverse process, decryption (e.g. “software for encryption” can typically also perform decryption), to make the encrypted information readable again (i.e. to make it unencrypted).

Encryption software executes an algorithm that is designed to encrypt computer data in such a way that it cannot be recovered without access to the key. Software encryption is a fundamental part of all aspects of modern computer communication and file protection and may include features like file shredding.The purpose of encryption is to prevent third parties from recovering the original information. This is particularly important for sensitive data like credit card numbers. Similarly this technique can be used for virus files to make it undectable to the antivirus programs.

On other hand, Binding Exe files means combining 2 or more exe files so that running the main execution file will also run a hidden execution file in background without the knowledge of user who is running it. Normally binding technique is done to make some virus files (mostly keyloggers) attach to some genuine softwares so that when anyone install this software, The keylogger attached to it also gets installed without the knowledge or permission of the user who is installing it.We have already discussed some binding method with Windows Own tool called IEXPRESS. You can also read How to create keyloggers And How to defend against autorun and other viruses. Ok lets continue with Crypting and Binding, we are using a tool called Chrome Crypter to bind and Crypt exe files

DOWNLOAD LINK

INSTRUCTIONS

1. Extract all the files and run Chrome Crypter to see a window as shown below.


2. Select the 2 files to bind and you can even Select icon for the final exe file.



After selecting the exe files to bind, just click the Protect button and select the location to save the final crypted and binded EXE file and thats it ..Enjoy !

Monday, 20 August 2012

Use Windows Defender Offline Tool to Fix an Infected PC

I had a client the other day whose PC was practically dead because they clicked on one of those pop up ads while on some sketchy website. Something got downloaded and their computer was infected with malware and wouldn’t load properly. When trying to log into Windows, they kept getting some error like
Interactive logon process initialization has failed
Who knows what that means. Anyway, they could no longer get into their Windows 7 machine and because of that there was no way to remove the spyware from the computer. They could not even log into Safe Mode to run an anti-spyware program. So the only options were to delete everything, reinstall and start fresh or try to use some offline spyware scanning tool to remove the malware before Windows even loads up.
Luckily, Microsoft released a cool offline version of Windows Defender that scans your system outside of Windows and removes any infections. Then you can start up your computer and the malware will be gone and hopefully your system will start up normally! That’s pretty cool and definitely better than having to reinstall everything.
To get started, go ahead and download the Windows Defender Offline tool here:
http://windows.microsoft.com/en-US/windows/what-is-windows-defender-offline
The way it works is that you download a program that will help you create a CD/DVD or USB bootable media that runs Windows Defender. You’ll create the media and then boot your computer from the CD or USB drive, which will then scan your system and fix any problems.
Once you download the 32 or 64-bit version, run the program and you’ll see the welcome screen:
windows defender offline
Go ahead and click Next to get started creating the offline media. Once you accept the license agreement, you’ll be given the option to install Windows Defender Offline on a CD/DVD, USB flash drive, or to download an ISO file.
remove malware
I installed it on a flash drive, which will have to be reformatted in order to install Windows Defender Offline. You only need about 250 MB of free space on the flash drive, but it will still format the entire thing.
reformat usb
Click Next and the process will start. It will download, then process the files, then format the USB drive and then install the files.
install windows defender
Once it’s complete, you will see the instructions for how to use the new media:
usb flash drive
Now you can boot up using the media and you’ll get the familiar Windows Defender screen. Note that all the definition files are downloaded when you use the install tool. You don’t need an Internet connection or anything in order to update the definition files. If you need to run the tool again at a later time, you need to create the media again because it will download the latest files and then create the bootable media.
windows defender
Hopefully, the next time you have a problem with your computer and you know it’s spyware or malware, you can use the offline tool to disinfect your system. If you have any questions or problems using the tool
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