Virus:Worm/IRCBot.33792
Date discovered:29/09/2005
Type:Worm
In the wild:No
Reported Infections:Low
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:33.792 Bytes
MD5 checksum:f4d5103380b75660163bdd811759a621
VDF version:6.32.0.46

 General Method of propagation:
   • Local network


Aliases:
   •  Mcafee: PWS-JC
   •  TrendMicro: BKDR_IRCBOT.AT


Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003


Side effects:
   • Registry modification
   • Third party control

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



It deletes the initially executed copy of itself.

 Registry The following registry key is added in order to run the process after reboot:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "Connectivity Tool"="%SYSDIR%\%executed file%.exe"

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

Server: **********.192.111
Port: 6667
Channel: #aobasvi#
Nickname: %nine-digit random character string%

Server: **********.229.178
Port: 6667
Channel: #aobasvi#
Nickname: %nine-digit random character string%


– Furthermore it has the ability to perform actions such as:
    • Download file
    • Edit registry
    • Execute file
    • Join IRC channel
    • Kill process
    • Leave IRC channel
    • Open remote shell
    • Register a service
    • Send emails
    • Terminate process

 Miscellaneous Mutex:
It creates the following Mutex:
   • Connectivity Tool

 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 Catalin Jora on Thursday, September 29, 2005
Description updated by Catalin Jora on Tuesday, October 4, 2005

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