TR/Click.Agent.ela - Trojan

See also

Summary

Full description

Statistics

Virus:	TR/Click.Agent.ela
Date discovered:	12/11/2008
Type:	Trojan
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Low
Damage Potential:	Low to medium
Static file:	Yes
File size:	178.176 Bytes
MD5 checksum:	1f62f8fa15b0325b405cd273add70ecc
IVDF version:	7.01.00.71 - Wed, 12 Nov 2008 08:00 (GMT+1)

General Method of propagation:
   • No own spreading routine

Aliases:
   • Symantec: Downloader
   • Mcafee: AdClicker-GI trojan
   • Kaspersky: Trojan-Clicker.Win32.Agent.ela
   • F-Secure: Trojan-Clicker.Win32.Agent.ela
   • Sophos: Troj/Agent-IFM
   • Grisoft: Clicker.UNM

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

Side effects:
   • Registry modification

Registry The following registry keys are added in order to run the processes after reboot:

– [HKCR\CLSID\{5D68B6D7-32E6-11CF-9281-463BF66AA24F}\InProcServer32]
   • "ThreadingModel"="Apartment"
   • @=""%malware execution directory%\%malware dll%"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "xcsgwpcukpwz"="%SYSDIR%\regsvr32.exe /s \"%malware execution directory%\%malware dll%\""

It registers a browser helper object (BHO) by adding the following key:

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\
   Browser Helper Objects\{5D68B6D7-32E6-11CF-9281-463BF66AA24F}]
   • "NoExplorer"=dword:00000001

The following registry key is added:

– [HKCR\CLSID\{5D68B6D7-32E6-11CF-9281-463BF66AA24F}]
   • @="cpmsky browser enhancer"

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.

See a brief description here.

Description inserted by Thomas Wegele on Wed, 17 Dec 2008 13:06 (GMT+1)
Description updated by Thomas Wegele on Wed, 17 Dec 2008 13:14 (GMT+1)

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