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Virus:Worm/Palevo.atou.1
Date discovered:25/08/2010
Type:Worm
In the wild:Yes
Reported Infections:Low
Distribution Potential:Low to medium
Damage Potential:Medium
Static file:Yes
File size:81.920 Bytes
MD5 checksum:22B5966625A41D027D51DB93CF7CB548
VDF version:7.10.04.204
IVDF version:7.10.11.21 - Wednesday, August 25, 2010

 General Aliases:
   •  Kaspersky: P2P-Worm.Win32.Palevo.atou
   •  TrendMicro: WORM_PALEVO.AK
   •  F-Secure: Trojan.Flooder.YAX
   •  Bitdefender: Trojan.Flooder.YAX
     Microsoft: TrojanDropper:Win32/Injector.I
   •  Panda: W32/P2Pworm.OY
   •  Eset: Win32/Peerfrag.FD
     GData: Trojan.Flooder.YAX
     DrWeb: Win32.HLLW.Lime.599


Platforms / OS:
   • Windows 2000
   • Windows XP
   • Windows 2003
    Windows Vista
    Windows Server 2008
    Windows 7

 Files It copies itself to the following location:
   • %recycle bin%\autorun.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:

[HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
   • "Taskman"="%recycle bin%\S-1-5-21-0212614389-4405252742-545469730-1202\syscr.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
   • CompletePath
   • 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
All entries in the contact list.

 Backdoor Contact server:
The following:
   • ms.mobile****.com:1863


 Injection – It injects itself into a process.

    Process name:
   • Explorer.exe


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

Description inserted by Irina Diaconescu on Thursday, November 4, 2010
Description updated by Irina Diaconescu on Tuesday, November 9, 2010

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