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Virus:Worm/Autorun.dha.4
Date discovered:16/05/2008
Type:Worm
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:12.288 Bytes
MD5 checksum:7b578cf8dc752b0b43993933222a23fe
IVDF version:7.00.04.47 - Friday, May 16, 2008

 General Method of propagation:
    Autorun feature


Aliases:
   •  Mcafee: W32/Autorun.worm.cd
   •  Sophos: W32/Autoham-Fam
   •  Panda: W32/IRCFlood.EI
   •  Eset: Win32/AutoRun.KP
   •  Bitdefender: Trojan.Agent.AHZG


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:
   • %drive%\RECYCLER\%CLSID%\iuhx32.exe



The following files are created:

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

%drive%\RECYCLER\%CLSID%\Desktop.ini

 Registry The following registry key is added:

[HKLM\Software\Microsoft\Active Setup\Installed Components\
   {28B0E5C2-99CB-11CF-AYX5-00401C648513}]
   • "StubPath"="%recycle bin%\%CLSID%\iuhx32.exe"

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

Server: crank.do**********.com
Port: 6667
Nickname: %random character string%

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

    Process name:
   • explorer.exe


 File details 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 Thursday, March 18, 2010
Description updated by Petre Galan on Thursday, March 18, 2010

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