Full description

Virus:	Worm/Palevo.kvb
Date discovered:	27/11/2009
Type:	Worm
In the wild:	Yes
Reported Infections:	Low to medium
Distribution Potential:	Medium
Damage Potential:	Low to medium
Static file:	Yes
File size:	135.680 Bytes
MD5 checksum:	1b8c861b18ffe409af18b0eea724ec26
IVDF version:	7.10.01.112 - Friday, November 27, 2009

General Method of propagation:
   • Autorun feature
   • Messenger
   • Peer to Peer

Aliases:
   • Panda: W32/P2PWorm.HS.worm
   • Eset: Win32/Peerfrag.FA
   • Bitdefender: Trojan.Generic.2717368

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

Side effects:
   • Drops malicious files

Files It copies itself to the following location:
• %drive%\RECYCLER\%CLSID%\ww32.exe

The following files are created:

– %drive%\autorun.inf This is a non malicious text file with the following content:
• %code that runs malware%

– %drive%\RECYCLER\%CLSID%\Desktop.ini

Registry – [HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
• "Taskman"="%recycle bin%\%CLSID%\ww32.exe"

P2P In order to infect other systems in the Peer to Peer network community the following action is performed:   It retrieves shared folders by querying the following registry keys:
   • Software\BearShare\General
   • Software\iMesh\General
   • Software\Shareaza\Shareaza\Downloads
   • Software\Kazaa\LocalContent
   • Software\DC++
   • Software\eMule
   • Software\Microsoft\Windows\CurrentVersion\Uninstall\eMule Plus_is1

   It searches for directories that contain the following substring:
   • \Local Settings\Application Data\Ares\My Shared Folder

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

– MSN Messenger

The URL then refers to a copy of the described malware. If the user downloads and executes this file the infection process will start again.

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

Process name:
• explorer.exe

Miscellaneous Internet connection:

It queries with the following names:
   • www.godown.ch
   • www.radines.ch
   • www.maxisex.ch

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

설명 삽입자 Petre Galan 2010년 4월 8일 목요일
설명 업데이트 Petre Galan 2010년 4월 8일 목요일

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