Jump to content


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.

Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.


W64.Rugrat - The First 64 bit Windows virus

  • Please log in to reply
No replies to this topic

#1 harrywaldron


    Security Reporter

  • Members
  • 509 posts
  • Gender:Male
  • Location:Roanoke, Virginia
  • Local time:07:51 PM

Posted 27 May 2004 - 08:28 AM

Unfortunately, the innovation continues with this new proof-of-concept PE infector that will run in native 64 bit mode.

W64.Rugrat - The First 64 bit Windows virus

W64.Rugrat.3344 is a direct-action infector (it exits memory after execution) of IA64 Windows Portable Executable (PE) files - this includes most Windows applications - excluding .dlls. It infects files that are in the same folder as the virus and in all subfolders. It is the first known virus for 64-bit Windows, and it uses the Thread Local Storage structures to execute the viral code. This is an unusual method of executing code. It does not infect 32-bit Portable Executable files, and it will not run on 32-bit Windows platforms. The virus is written in IA64 assembly code.

W64.Rugrat is a fairly simple proof-of-concept virus. However, it is the first known virus to attack 64-bit Windows executables on IA64 systems intentionally, and it does so successfully. The virus uses a handful of Win64 API-s from 3 different libraries, NTDLL.DLL, SFC_OS.DLL and KERNEL32 respectively.

BC AdBot (Login to Remove)


0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users