Virus:TR/Hook.Tank.1
Date discovered:26/09/2005
Type:Trojan
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:69.120 Bytes
MD5 checksum:f78d484ac2def8671ca07e8d7ddc916c
VDF version:6.32.0.37

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan-PSW.Win32.Lineage.mp
   •  Bitdefender: Trojan.ShellHook


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


Side effects:
   • Drops a malicious file
   • Records keystrokes
   • Registry modification
   • Steals information

 Files The following files are created:

– %SYSDIR%\windir32.dll Furthermore it gets executed after it was fully created. Further investigation pointed out that this file is malware, too. Detected as: TR/Hook.Tank.1

– %system drive root%\t1game.txt This file contains collected keystrokes.

 Registry The following registry keys are added:

– [HKCR\CLSID\{04ED35B6-9A10-4EB3-9C1E-66B2CFA5AC77}]
   • @="HOOK"

– [HKCR\CLSID\{04ED35B6-9A10-4EB3-9C1E-66B2CFA5AC77}\InProcServer32]
   • @="%SYSDIR%\windir32.dll"
   • "ThreadingModel"="Apartment"

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\
   ShellExecuteHooks]
   • "{04ED35B6-9A10-4EB3-9C1E-66B2CFA5AC77}"=""

 Stealing It tries to steal the following information:

– The password from the following program:
   • Lineage

 Injection –  It injects the following file into a process: %SYSDIR%\windir32.dll

 File details Programming language:
 The malware program was written in Delphi.

Description inserted by Iulia Diaconescu on Tuesday, September 27, 2005
Description updated by Iulia Diaconescu on Friday, September 30, 2005

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