Need help? Ask the community or hire an expert.
Go to Avira Answers
Date discovered:20/07/2011
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:710.674 Bytes
MD5 checksum:7EB6FDB4C1E4CA0C5585B645056F5CC0
VDF version:
IVDF version:

 General Aliases:
   •  TrendMicro: TROJ_KRYPTIK.VI
   •  Sophos: Troj/Agent-RYW
   •  Microsoft: Worm:Win32/Rebhip.A

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Third party control
   • Drops malicious files
   • Records keystrokes
   • Registry modification

 Files It copies itself to the following location:
   • C:\Ie8\Install.exe

The following files are created:

%TEMPDIR%\%current username%%number%.txt
– %APPDATA%\%current username%log.dat

 Registry The following registry keys are added in order to run the processes after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\
   • "Nvidia"="C:\Ie8\Install.exe"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\
   • "Nvidia"="C:\Ie8\Install.exe"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Rundll32"="C:\Ie8\Install.exe"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Svchost"="C:\Ie8\Install.exe"

The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\
   • "StubPath"="C:\Ie8\Install.exe Restart"

 Backdoor Contact server:
All of the following:
   • **********
   • **********

Sends information about:
    • Information about the Windows operating system

Remote control capabilities:
    • Start keylog

 File details Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

Description inserted by Andrei Ilie on Tuesday, September 13, 2011
Description updated by Andrei Ilie on Tuesday, September 13, 2011

Back . . . .