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Virus:Worm/IrcBot.32256
Date discovered:30/06/2006
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:32.256 Bytes
MD5 checksum:10980f4df2060b86a72eb5e533102980
VDF version:6.35.00.97
IVDF version:6.35.00.121 - Wednesday, July 5, 2006

 General Methods of propagation:
   • Autorun feature
   • Local network


Aliases:
   •  Mcafee: W32/Autorun.worm.h
   •  Kaspersky: Backdoor.Win32.IRCBot.jwy
   •  Sophos: W32/SdBot-DKI
   •  Bitdefender: Trojan.Generic.1729343
   •  Panda: W32/Autorun.AOL
   •  GData: Trojan.Generic.1729343


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


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

 Files It copies itself to the following locations:
   • %SYSDIR%\csrsc.exe
   • %drive%\autorunme.exe



The following file is created:

%drive%\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

 Registry The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Shell Extensions]
   • "onstared"="%executed file%"

 Network Infection In order to ensure its propagation the malware attemps to connect to other machines as described below.


Exploit:
It makes use of the following Exploits:
– MS02-061 (Elevation of Privilege in SQL Server Web)
– MS04-007 (ASN.1 Vulnerability)
– MS06-040 (Vulnerability in Server Service)


Remote execution:
–It attempts to schedule a remote execution of the malware, on the newly infected machine. Therefore it uses the NetScheduleJobAdd function.

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

Server: ols.sys**********.com
Port: 555
Channel: #gg
Nickname: [00|USA|XP|%number%]

 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 Petre Galan on Friday, March 25, 2011
Description updated by Petre Galan on Friday, March 25, 2011

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