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Virus:Worm/IrcBot.43520.3
Date discovered:29/05/2007
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Low
Damage Potential:Medium
Static file:Yes
File size:43.520 Bytes
MD5 checksum:7e4264605e386817a08b4efa0a2fd327
IVDF version:6.38.01.198 - Tuesday, May 29, 2007

 General Aliases:
   •  Mcafee: W32/Spybot.worm
   •  Panda: W32/Gaobot.OXI.worm
   •  Eset: Win32/Lethic.AA
   •  Bitdefender: Backdoor.Bot.118291


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following location:
   • %recycle bin%\%CLSID%\budau44.exe



The following file is created:

%recycle bin%\%CLSID%\Desktop.ini

 Registry The following registry keys are added in order to run the processes after reboot:

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\%CLSID%\budau44.exe"

[HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
   • "puda4"="%recycle bin%\%CLSID%\budau44.exe"

[HKCU\Software\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Shell"="explorer.exe,%recycle bin%\%CLSID%\budau44.exe"

 Backdoor The following port is opened:

buda.pes**********.biz on TCP port 8800

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

    Process name:
   • explorer.exe


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

Descripción insertada por Petre Galan el jueves 27 de mayo de 2010
Descripción actualizada por Petre Galan el jueves 27 de mayo de 2010

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