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Virus:WORM/Autorun.ZH.75
Date discovered:21/02/2011
Type:Worm
In the wild:No
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Low to medium
File size:102.912 Bytes
MD5 checksum:77D30ECC9825850D8011CF0BC63A511F
VDF version:7.10.08.243
IVDF version:7.11.03.166 - Monday, February 21, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan.Win32.Agent.nctu
   •  TrendMicro: WORM_AUTORUN.DL
   •  Sophos: Troj/DorkBot-I
   •  Bitdefender: Trojan.Scar.R
     Microsoft: Worm:Win32/Autorun.ZH


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows 7


Side effects:
   • Drops files
   • Registry modification

 Files It copies itself to the following location:
   • %APPDATA%\Microsoft\svchost.exe

 Registry One of the following values is added in order to run the process after reboot:

  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Startup"="%APPDATA%\Microsoft\svchost.exe"



The following registry key is added:

[HKCU\Software\QYE]
   • "FileNameActual"="%executed file% "

 Miscellaneous  Checks for an internet connection by contacting the following web site:
   • speedtest.zapto.org

 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 a runtime packer.

설명 삽입자 Andrei Ilie   2011년 7월 26일 화요일
설명 업데이트 Andrei Ilie   2011년 7월 26일 화요일

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