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Virus:TR/Kazy.25335.2
Date discovered:09/06/2011
Type:Trojan
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low
Damage Potential:Medium
File size:253.826 Bytes
MD5 checksum:81F9A6F10C5D1805221E21F3F6C94A00
VDF version:7.11.09.105 - Thursday, June 9, 2011
IVDF version:7.11.09.105 - Thursday, June 9, 2011

 General Method of propagation:
   • No own spreading routine


Aliases:
   •  Kaspersky: Trojan.Win32.VBKrypt.dokg
   •  TrendMicro: WORM_AUTORUN.DL
   •  Microsoft: Worm:Win32/Ainslot.A


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


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

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



The following file is created:

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

 Registry To each registry key one of the values is added in order to run the processes after reboot:

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\
   run]
   • "WinDefender"="%APPDATA%\Fraud.exe"

–  [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
   • "WinDefender"="%APPDATA%\Fraud.exe"

–  [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "WinDefender"="%APPDATA%\Fraud.exe"



The following registry keys are added:

– [HKCU\Software\VB and VBA Program Settings\SrvID\ID]
   • "G0JGLWMKHZ"="Fraud's Bots"

– [HKCU\Software\VB and VBA Program Settings\INSTALL\DATE]
   • "G0JGLWMKHZ"="%current date%"

– [HKLM\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\
   FirewallPolicy\StandardProfile\AuthorizedApplications\List]
   • "%APPDATA%\Fraud.exe"="%APPDATA%\Fraud.exe:*:Enabled:Windows Messanger"
   • "%executed file%"="%executed file%:*:Enabled:Windows Messanger"

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

 Backdoor The following port is opened:

– svchost.exe on UDP port 1033 in order to provide backdoor capabilities.


Contact server:
The following:
   • blackshades722.no-ip.**********:3333

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

 Stealing – A logging routine is started after a website is visited:
   • http://www.facebook.com/
    • Keystrokes
    • Window information

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

    All of the following processes:
   • explorer.exe
   • svchost.exe


 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:
   • UPX

Description inserted by Andrei Ilie on Wednesday, July 27, 2011
Description updated by Andrei Ilie on Thursday, August 4, 2011

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