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Date discovered:06/06/2011
Type:Backdoor Server
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
File size:507.904 Bytes
MD5 checksum:549CC0750A13B465875B0FCDDCBA4A65
VDF version:
IVDF version:

 General Method of propagation:
   • No own spreading routine

   •  Mcafee: W32/Ainslot.b
   •  Kaspersky: Trojan.MSIL.Crypt.jc
   •  Microsoft: Worm:Win32/Ainslot.A

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

Side effects:
   • Third party control
   • Drops files
   • Lowers security settings
   • Registry modification
   • Steals information

 Files It copies itself to the following locations:
   • %APPDATA%\Microsoft\Protect\Credentials\xCocaine.txt
   • %APPDATA%\Predator.exe
   • %APPDATA%\Microsoft\Protect\Credentials\rundll.exe

The following file is created:

– %APPDATA%\data.dat This file contains collected keystrokes.

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

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "rundll.exe"="%APPDATA%\Microsoft\Protect\Credentials\rundll.exe"

The following registry keys are added:

– [HKCU\Software\VB and VBA Program Settings\SrvID\ID]
   • "7YHNQKYICA"="Matty's Bot"

– [HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
   • "7YHNQKYICA"="%current date%"

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   • "DoNotAllowExceptions"=dword:00000000

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   • "%APPDATA%\Predator.exe"="%APPDATA%\Predator.exe:*:Enabled:Windows Messanger"

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   • "%executed file%"="%executed file%:*:Enabled:Windows Messanger"

 Backdoor Contact server:
The following:

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

Sends information about:
    • Capture screen
    • Information about the Windows operating system

Remote control capabilities:
    • Start keylog
    • Visit a website

 Stealing – A logging routine is started after the following website is visited, which contains one of the following substrings in the URL:

 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.

Description inserted by Andrei Ilie on Thursday, July 28, 2011
Description updated by Andrei Ilie on Thursday, August 4, 2011

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