Virus:TR/Dldr.Harnig.BD.1
Date discovered:10/04/2006
Type:Trojan
Subtype:Downloader
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Low to medium
Static file:Yes
File size:5.637 Bytes
MD5 checksum:9aa32c86cd9a164e4bf1b3eebf187c73
VDF version:6.34.00.165

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-Downloader.Win32.Harnig.bd
   •  TrendMicro: TROJ_DLOADER.COH
   •  Bitdefender: Trojan.Downloader.Small.YU


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


Side effects:
   • Downloads files
   • Downloads malicious files
   • Lowers security settings

 Files It tries to download some files:

– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\uniq

– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\kl1.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Sinowal.H


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\tool2.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: ADSPY/Hoax.Renos.AG


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\country.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Killav.DB.2


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: %PROGRAM FILES%\secure32.html

– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: %PROGRAM FILES%\paytime.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/StartPage.adi.7


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\toolbar.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Killav.DB.2


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\tool1.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Proxy.Small.BO.Dldr


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\tool3.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.Tiny.AP.3


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\tool4.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Proxy.Small.BO.18


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\tool5.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/Click.Small.KR


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\ms1.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.S.CJG.325.D


– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: %WINDIR%\Hosts

– The location is the following:
   • http://traffdollars.biz/progs_exe/kjazw/**********
It is saved on the local hard drive under: c:\uniq

 Registry  The following registry key including all values and subkeys is removed:
   • [HKLM\CurrentControlSet\Services\SharedAccess]

 Process termination  The following service is disabled:
   • Windows Firewall/Internet Connection Sharing (ICS)

 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:
   • FSG

Description inserted by Andrei Ivanes on Wednesday, April 12, 2006
Description updated by Andrei Gherman on Thursday, April 13, 2006

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