Need help? Ask the community or hire an expert.
Go to Avira Answers
Date discovered:17/08/2011
In the wild:No
Reported Infections:Low
Distribution Potential:Medium to high
Damage Potential:Medium
Static file:Yes
File size:155.648 Bytes
MD5 checksum:C67B6F1221C241280833CAB483D631CB
VDF version: - Wednesday, August 17, 2011
IVDF version: - Wednesday, August 17, 2011

 General Methods of propagation:
    Autorun feature

   •  Kaspersky:
   •  TrendMicro: BKDR_IRCBRUTE.EK
     Microsoft: Trojan:Win32/Ircbrute
     DrWeb: Trojan.Packed.21754

Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows 7

Side effects:
   • Drops files
   • Registry modification
   • Steals information

 Files It copies itself to the following location:
   • %APPDATA%\msnq.exe

 Registry One of the following values is added in order to run the process after reboot:

   • "Windows Update Guard"="%APPDATA%\msnq.exe"

It creates the following entry in order to bypass the Windows XP firewall:

   • "%APPDATA%\msnq.exe"="%APPDATA%\msnq.exe:*:Enabled:Windows Update

 Messenger It is spreading via Messenger. The characteristics are described below:

Windows Live Messenger

 IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: **********
Port: 81
Nickname: %random character string%

 This malware has the ability to collect and send information such as:
    • Current user
    • Information about the Windows operating system

 Furthermore it has the ability to perform actions such as:
     connect to IRC server
     disconnect from IRC server
    • Join IRC channel
    • Leave IRC channel
     Visit a website

 Injection  It injects itself as a remote thread into processes.

    Process name:
   • explorer.exe

Description inserted by Andrei Ilie on Wednesday, October 12, 2011
Description updated by Andrei Ilie on Thursday, October 13, 2011

Back . . . .