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Virus:TR/Ircbrute.A.889
Date discovered:06/10/2010
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:430.080 Bytes
MD5 checksum:F01F67FE0C9DAE8A8973D8209FA1DB1A
VDF version:7.10.05.149
IVDF version:7.10.12.139 - Wednesday, October 6, 2010

 General Method of propagation:
   • Messenger


Aliases:
   •  Kaspersky: Trojan.Win32.Jorik.IRCbot.akw
   •  Microsoft: Trojan:Win32/Ircbrute


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


Side effects:
   • Third party control
   • Drops files
   • Lowers security settings
   • Registry modification

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

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "WindowsUpdate"="%executed file%"

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

– Yahoo Messenger


Message
The sent message looks like one of the following:

   • ahoj, dobry den jste na? ... %link%
     belas fotos nao de voce %link%
     Fotograflarinizi?? %link%
     hey, beautiful facebook photos.. %link%
     hoi niet mooi fotos %link%
     hoj so vase fotografije? %link%
     ich sag nur geile fotos. %link%
     muy hermosas fotos no?? %link%
     u lepo slike ne? ... %link%
     u velmi pekne fotografie od vas? %link%
     uh flotte fotos fra dig %link%
     uh szep kepek rolad %link%
     uh valokuva ei ole? %link%
     uh vos facebook photos? %link%
     uhh, ladne zdjecia z was. %link%
     vackra bilder fran dig %link%
     vakre bilder fra deg. %link%
     woow, imagini frumoase din voi?? %link%
     wow le tue foto bellissime %link%
     wow, fbphotos. %link%

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

Server: irc.clupversai.com
Port: 2525
Nickname: %random character string%



– This malware has the ability to collect and send information such as:
    • Username
    • 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

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

Description inserted by Andrei Ilie on Thursday, September 22, 2011
Description updated by Andrei Ilie on Friday, September 23, 2011

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