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Virus:Worm/Palevo.amss
Type:Worm
In the wild:Yes
Reported Infections:Low to medium
Distribution Potential:Medium
Damage Potential:Low to medium
Static file:Yes
File size:1.478.656 Bytes
MD5 checksum:d2928ea9f947f39dd3e98afef035678f

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


Aliases:
   •  Bitdefender: Worm.Generic.254081
   •  Panda: W32/P2Pworm.OJ
   •  Eset: Win32/AutoRun.Agent.WZ


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


Side effects:
   • Drops malicious files
   • Registry modification

 Files It copies itself to the following locations:
   • %drive%\U3ROM\flyhigh.exe
   • %recycle bin%\%CLSID%\recycle.exe



The following files are created:

%recycle bin%\%CLSID%\Desktop.ini
%drive%\autorun.inf This is a non malicious text file with the following content:
   • %code that runs malware%

 Registry The following registry key is added in order to run the process after reboot:

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



The following registry key is added:

– [HKLM\Software\Microsoft\RFC1156Agent\CurrentVersion\Parameters]
   • "TrapPollTimeMilliSecs"=dword:0x00003a98

 P2P    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:

– Windows Live 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.

 Backdoor Contact server:
One of the following:
   • upd**********.net:7009 (UDP)
   • liv**********.com:7009 (UDP)
   • upd**********.com:7009 (UDP)


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

    Process name:
   • explorer.exe


 Miscellaneous Mutex:
It creates the following Mutex:
   • alkfmwoifkijfaffalc85

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

Description inserted by Petre Galan on Monday, January 3, 2011
Description updated by Petre Galan on Monday, January 3, 2011

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