Need help? Ask the community or hire an expert.
Go to Avira Answers
Virus:TR/Ircbrute.A.1295
Date discovered:21/06/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:53.248 Bytes
MD5 checksum:6756D86D32FA9D9467737B1A9B60ED83
VDF version:7.11.10.41 - Tuesday, June 21, 2011
IVDF version:7.11.10.41 - Tuesday, June 21, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Mcafee: Artemis!6756D86D32FA
   •  Kaspersky: Trojan.Win32.Pincav.bfdu
     Microsoft: Trojan:Win32/Ircbrute


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


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

 Files It copies itself to the following location:
   • %recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\vcleaner.exe



The following file is created:

%recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\Desktop.ini

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

  [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\R-1-5-21-1482476501-1644491937-682003330-1013\vcleaner.exe"

 Messenger The sent message looks like one of the following:

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

Server: **********s.ishtiben.com
Port: 1110
Server password: eee
Nickname: %random character string%

Server: **********s.ka3ek2.com
Port: 1110
Server password: eee
Nickname: %random character string%


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

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

    Process name:
   • explorer.exe


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


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, August 30, 2011
Description updated by Andrei Ilie on Wednesday, August 31, 2011

Back . . . .