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Virus:TR/Dldr.Smalldldr.A
Date discovered:12/01/2006
Type:Trojan
Subtype:Downloader
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:2.560 Bytes
MD5 checksum:b22cdc4a2383d9270247d640ae7fec4b
VDF version:6.33.00.29

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-Downloader.Win32.Small.arj
   •  TrendMicro: TROJ_SMALL.AXO
   •  Bitdefender: Trojan.Downloader.Smalldldr.A


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


Side effects:
   • Downloads malicious files

 Files It tries to download some files:

– The location is the following:
   • http://www.**********ucts-gold.net/system.exe
It is saved on the local hard drive under: %SYSDIR%\system.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Spy.Delf.MQ.2


– The location is the following:
   • http://www.**********ucts-gold.net/w16.dll
It is saved on the local hard drive under: %SYSDIR%\w16.dll Further investigation pointed out that this file is malware, too. Detected as: TR/HideProc.D


– The location is the following:
   • http://www.**********ucts-gold.net/win32.dll
It is saved on the local hard drive under: %SYSDIR%\win32.dll Further investigation pointed out that this file is malware, too. Detected as: TR/Spy.Delf.MQ


– The location is the following:
   • http://www.**********ucts-gold.net/sys32.exe
It is saved on the local hard drive under: %SYSDIR%\sys32.exe Further investigation pointed out that this file is malware, too. Detected as: TR/Spy.Delf.MQ.1

Description inserted by Andrei Gherman on Thursday, January 12, 2006
Description updated by Andrei Gherman on Tuesday, January 17, 2006

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