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Date discovered:14/04/2010
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:122.882 Bytes
MD5 checksum:8e72e74e83a9d84cd45099e1182c2439
IVDF version:

 General Aliases:
   •  Sophos: Mal/VBInject-T
   •  Bitdefender: Trojan.Generic.KD.6894
   •  Panda: W32/ButterflyBot.C.worm
   •  Eset: Win32/Boberog.AK

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

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

 Files It copies itself to the following location:
   • %WINDIR%\secfil.exe

The following file is created:

– C:\a.txt

It tries to executes the following file:

– Filename:
   • "%WINDIR%\secfil.exe"

 Registry It creates the following entry in order to bypass the Windows XP firewall:

– [HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\
   • "%executed file%"="%executed file%:*:Enabled:Userinit"

The following registry key is changed:

– [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   New value:
   • "Userinit"="%SYSDIR%\userinit.exe,%WINDIR%\secfil.exe"

 IRC To deliver system information and to provide remote control it connects to the following IRC Server:

Server: stores.del**********.net
Port: 1234
Channel: #dl#
Nickname: n[USA|XP]%number%

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

Description inserted by Petre Galan on Thursday, July 22, 2010
Description updated by Petre Galan on Thursday, July 22, 2010

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