Virus:TR/Dldr.Swizzor.DV
Date discovered:26/02/2007
Type:Trojan
Subtype:Downloader
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:No
File size:62.570 Bytes
VDF version:6.37.01.155
IVDF version:6.37.01.162 - Monday, February 26, 2007

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-Downloader.Win32.Swizzor.dv
   •  F-Secure: Trojan-Downloader.Win32.Swizzor.dv
   •  Grisoft: Downloader.Swizzor.8.BK
   •  Eset: Win32/TrojanDownloader.Swizzor
   •  Bitdefender: Trojan.Downloader.Swizzor.DQ


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


Side effects:
   • Downloads a malicious file
   • Registry modification

 Files It tries to download a file:

– The location is the following:
   • http://%random character string%.bins.dns-look-up.com/bins/int/**********
It is saved on the local hard drive under: %TEMPDIR%\sta14.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Dldr.Swizzor.Gen

 Registry The following registry key is added:

– [HKCU\Software\Transdeadsoft]
   • internet option = %hex values%

 Injection – It injects itself into a process.

    Process name:
   • iexplore.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 Andrei Gherman on Tuesday, May 15, 2007
Description updated by Andrei Gherman on Tuesday, May 15, 2007

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