TR/Clicker.Agent.TP - Trojan

See also

Summary

Full description

Statistics

Virus:	TR/Clicker.Agent.TP
Date discovered:	12/03/2008
Type:	Trojan
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Medium
Static file:	No
File size:	~ 70.000 Bytes
IVDF version:	7.00.03.22 - Wed, 12 Mar 2008 18:13 (GMT+1)

General Method of propagation:
   • No own spreading routine

Aliases:
   • Symantec: Downloader
   • Kaspersky: Trojan-Clicker.Win32.Agent.tp
   • F-Secure: Trojan-Clicker.Win32.Agent.tp
   • Sophos: Troj/Slupim-Gen
   • Grisoft: Downloader.Agent.AFTW
   • Eset: Win32/TrojanDownloader.Agent.BER trojan
   • Bitdefender: Trojan.Agent.AIWV

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

Side effects:
   • Downloads a malicious file
   • Drops a malicious file
   • Registry modification

Files The following file is created:

– %SYSDIR%\crypts.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Dldr.Ag.29696.A

It tries to download a file:

– The location is the following:
• http://www.deborah2.biz/**********54.exe
Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Agent.120832.C

Registry The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\Notify\
   crypt]
   • "DLLName"="crypts.dll"
   • "Impersonate"=dword:00000001
   • "Asynchronous"=dword:00000001
   • "StartShell"="Run"

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 the following runtime packer:
• UPX

See a brief description here.

Description inserted by Thomas Wegele on Wed, 17 Dec 2008 12:53 (GMT+1)
Description updated by Thomas Wegele on Wed, 17 Dec 2008 13:01 (GMT+1)

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