Need help? Ask the community or hire an expert.
Go to Avira Answers
Virus:Worm/Agent.131072.1
Date discovered:30/06/2009
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:131.072 Bytes
MD5 checksum:16cc4f09d28e442181972c914c508b7f
IVDF version:7.01.04.156 - Tuesday, June 30, 2009

 General Aliases:
   •  Mcafee: W32/IRCbot.gen.a
   •  Sophos: W32/Spybot-OU
   •  Panda: W32/IRCBot.CRG
   •  Eset: Win32/AutoRun.IRCBot.DJ
   •  Bitdefender: Worm.Generic.92413


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


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

 Files It copies itself to the following location:
   • %SYSDIR%\winulty.exe



It deletes the initially executed copy of itself.

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

  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Windows Upgrate Utility"="%SYSDIR%\winulty.exe"

 Network Infection Exploit:
It makes use of the following Exploits:
– MS03-026 (Buffer Overrun in RPC Interface)
– MS04-011 (LSASS Vulnerability)

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

Server: srv1.me**********.ru
Port: 1863
Channel: #bdd
Nickname: USA|0|XP|%number%

Server: srv1.ma**********.ru
Port: 1863
Channel: #bdd
Nickname: USA|0|XP|%number%


 Furthermore it has the ability to perform actions such as:
    • Execute file
     Perform network scan
     Updates itself

 Injection – It injects itself as a remote thread into a process.

    Process name:
   • winlogon.exe


 File details Programming language:
The malware program was written in MS Visual C++.

Description inserted by Petre Galan on Wednesday, February 17, 2010
Description updated by Petre Galan on Wednesday, February 17, 2010

Back . . . .