Full description

Virus:	Worm/IRCBot.aak
Date discovered:	19/07/2007
Type:	Worm
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low to medium
Damage Potential:	Medium
Static file:	Yes
File size:	75.549 Bytes
MD5 checksum:	4629915b7e40dddedf7deeb07ced5784
VDF version:	6.39.00.34 - Tuesday, June 19, 2007
IVDF version:	6.39.00.34 - Tuesday, June 19, 2007

General Method of propagation:
   • Email

Aliases:
   • Mcafee: W32/Sdbot.worm.gen.l
   • Kaspersky: Backdoor.Win32.IRCBot.aak
   • F-Secure: Backdoor.Win32.IRCBot.aak
   • Panda: Trj/Mailbot.CE
   • Eset: Win32/IRCBot.XN
   • Bitdefender: Backdoor.RBot.BTK

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Drops malicious files
   • Uses its own Email engine
   • Registry modification

Files It copies itself to the following location:
• %SYSDIR%\mdmd.exe

It deletes the initially executed copy of itself.

The following file is created:

– %SYSDIR%\helpermdmd.exe Furthermore it gets executed after it was fully created. Detected as: TR/Proxy.Slaper.E.51

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

– [HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• "melg34"="%SYSDIR%\mdmd.exe"

– [HKCU\Software\Microsoft\Windows\CurrentVersion\Run]
• "melg34"="%SYSDIR%\mdmd.exe"

Backdoor Contact server:
The following:
• l4.penny**********:24104

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

Remote control capabilities:
• Send emails

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

説明の挿入者 Ana Maria Niculescu の 2007年10月3日水曜日
説明の更新者 Ana Maria Niculescu の 2007年10月4日木曜日

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