TR/Dldr.Adload.MA.3 - Trojan

See also

Summary

Full description

Statistics

Virus:	TR/Dldr.Adload.MA.3
Date discovered:	07/11/2007
Type:	Trojan
Subtype:	Downloader
In the wild:	No
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Low
Static file:	Yes
File size:	98.677 Bytes
MD5 checksum:	55d53c07dc9edfc80f021a4ac3d667c0
IVDF version:	7.00.00.181

General Method of propagation:
   • No own spreading routine

Aliases:
   • Symantec: Downloader.MisleadApp
   • Kaspersky: Trojan-Downloader.Win32.Adload.ma
   • F-Secure: Trojan-Downloader.Win32.Adload.ma
   • Grisoft: Downloader.Purityscan.AV
   • VirusBuster: Adware.UltimateDefend.C
   • Eset: Win32/Adware.UltimateDefender application

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

Side effects:
   • Downloads a file

Right after execution the following information is displayed:

Files The following files are created:

– Non malicious files:
   • %PROGRAM FILES%\SystemDefender\SystemDefender.db
   • %PROGRAM FILES%\SystemDefender\Uninstall.exe
   • %PROGRAM FILES%\SystemDefender\program.info

– %PROGRAM FILES%\SystemDefender\SystemDefender.exe Furthermore it gets executed after it was fully created. Further investigation pointed out that this file is malware, too. Detected as: SPR/Fake.SystemDef

It tries to download a file:

– The location is the following:
   • http://system-defender.com/**********defender.pkg
It is saved on the local hard drive under: %PROGRAM FILES%\SystemDefender\SystemDefender.pkg

File details 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 Thu, 15 May 2008 09:44 (GMT+1)
Description updated by Thomas Wegele on Thu, 15 May 2008 09:59 (GMT+1)

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