Full description

Virus:	BDS/Floder.mt
Date discovered:	20/06/2011
Type:	Backdoor Server
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Medium
File size:	152.064 Bytes
MD5 checksum:	2C172284DD0CD1D31C7F7C93E95C727C
VDF version:	7.11.10.37 - Monday, June 20, 2011
IVDF version:	7.11.10.37 - Monday, June 20, 2011

General Method of propagation:
   • No own spreading routine

Aliases:
   • Symantec: W32.Pilleuz
   • TrendMicro: TROJ_SPNR.02FS11
   • Microsoft: Worm:Win32/Dorkbot.I

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

Side effects:
   • Third party control
   • Drops files
   • Registry modification

Files It copies itself to the following location:
• %APPDATA%\%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]
   • "%random character string%"="%APPDATA%\%random character string%.exe"

The following registry key is added:

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

The following registry key is changed:

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
   New value:
   • "MigrateProxy"=dword:00000001
   • "ProxyEnable"=dword:00000000
   • "ProxyServer"=-
   • "ProxyOverride"=-
   • "AutoConfigURL"=-

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

Server: **********.yourwebfind.com
Port: 5101
Server password: hax0r

Server: **********.drwhox.com
Port: 5101
Server password: hax0r

Server: **********.babypin.net
Port: 5101
Server password: hax0r

Server: **********.beecitysearch.com
Port: 5101
Server password: hax0r

Server: **********.mdmads.com
Port: 5101
Server password: hax0r

– This malware has the ability to collect and send information such as:
    • Current user
    • Information about the Windows operating system

– Furthermore it has the ability to perform actions such as:
    • Join IRC channel
    • Leave IRC channel
    • Perform DDoS attack

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

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

Miscellaneous Accesses internet resources:
• http://api.wipmania.com

String:
Furthermore it contains the following string:
• IsDebuggerPresent

File details Programming language:
The malware program was written in MS Visual C++.

Description inserted by Andrei Ilie on maandag 8 augustus 2011
Description updated by Andrei Ilie on maandag 8 augustus 2011

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