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Virus:TR/VB.Inject.PX
Date discovered:20/07/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
File size:69.632 Bytes
MD5 checksum:9268ADEBF4F49D16DA0838145E8BA4D5
VDF version:7.11.12.21 - Wednesday, July 20, 2011
IVDF version:7.11.12.21 - Wednesday, July 20, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Symantec: W32.SillyIRC
   •  Mcafee: W32/Autorun.worm.h
   •  Kaspersky: Worm.Win32.AutoRun.cgfa


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:
   • %TEMPDIR%\%random character string%.exe



It deletes the initially executed copy of itself.

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

  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "Windows"="%TEMPDIR%\%random character string%.exe"

  [HKLM\SOFTWARE\Microsoft\Active Setup\Installed Components\
   {36A5A0DB-297E-FDE2-0501-060104070800}]
   • "StubPath"="C:\DOCUME~1\SD_USER\LOCALS~1\Temp\%random character string%.exe"



The following registry key is added:

[HKEY_CURRENT_CONFIG\Software\Microsoft\windows\CurrentVersion\
   Internet Settings]
   • "ProxyEnable"=dword:00000000

 Backdoor The following port is opened:

svchost.exe on UDP port 1032


Contact server:
The following:
   • 69.65.19.**********:443

As a result it may send information and remote control could be provided.

Sends information about:
     Information about the Windows operating system


Remote control capabilities:
     Send emails

 Injection It injects itself as a remote thread into a process.

    Process name:
   • explorer.exe


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


Runtime packer:
In order to aggravate detection and reduce size of the file it is packed with a runtime packer.

説明の挿入者 Andrei Ilie の 2011年8月1日月曜日
説明の更新者 Andrei Ilie の 2011年8月2日火曜日

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