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Virus:TR/Malex.F.29
Date discovered:18/05/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:143.360 Bytes
MD5 checksum:928f136bd81da0c8f6218ef89fcec7bd
VDF version:7.11.08.60 - Wednesday, May 18, 2011
IVDF version:7.11.08.60 - Wednesday, May 18, 2011

 General Aliases:
   •  Kaspersky: Worm.Win32.AutoRun.cfnt
   •  F-Secure: Worm.Win32.AutoRun.cfnt
   •  Bitdefender: Trojan.Generic.5797940
   •  GData: Trojan.Generic.5797940


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 location:
   • %TEMPDIR%\scvhost.exe




It tries to execute the following file:

– Filename:
   • %TEMPDIR%\scvhost.exe

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

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "winlogon"="%TEMPDIR%\scvhost.exe"

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

Server: irc.win**********.nl
Port: 2109
Channel: #moo
Nickname: [USA|%number%]

 Miscellaneous Mutex:
It creates the following Mutex:
   • LNCAYGBPUN

 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 Monday, June 27, 2011
Description updated by Petre Galan on Monday, June 27, 2011

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