Full description

Virus:	WORM/Palevo.abc
Date discovered:	19/08/2011
Type:	Worm
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Medium to high
Damage Potential:	Medium
Static file:	Yes
File size:	266.240 Bytes
MD5 checksum:	38771EBCABCBE8BEA7D00D2E8232BAC7
VDF version:	7.11.13.154 - Friday, August 19, 2011
IVDF version:	7.11.13.154 - Friday, August 19, 2011

General Methods of propagation:
   • Autorun feature
   • Messenger

Aliases:
   • Kaspersky: Trojan.Win32.VBKrypt.fbnw
   • Microsoft: Worm:Win32/Dorkbot.I
   • AhnLab: Trojan/Win32.VBKrypt

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

Side effects:
   • 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"

Messenger It is spreading via Messenger. The characteristics are described below:

– Windows Live Messenger

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

Server: **********hmoney.biz
Port: 4042
Nickname: %random character string%

Server: **********therebitch.com
Port: 4042
Nickname: %random character string%

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

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

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

Process name:
• %random process%

Miscellaneous Anti debugging
Checks for debugger or virtual machine using time related techniques.

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

説明の挿入者 Andrei Ilie の 2011年10月26日水曜日
説明の更新者 Andrei Ilie の 2011年10月31日月曜日

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