Virus:Worm/Waledac.48640
Date discovered:18/03/2009
Type:Worm
In the wild:Yes
Reported Infections:Medium
Distribution Potential:Medium
Damage Potential:Medium
Static file:Yes
File size:48.640 Bytes
MD5 checksum:f9117bf6469b48d8240F4f09aa5adca5
IVDF version:7.01.02.184 - Wednesday, March 18, 2009

 General Aliases:
   •  Mcafee: W32/Waledac.gen.e
   •  Sophos: Mal/WaledPak-A
   •  Panda: W32/Iksmas.F.worm
   •  Eset: Win32/Waledac.HL
   •  Bitdefender: Trojan.Waledac.DB


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


Side effects:
   • Downloads files
   • Drops a malicious file
   • Registry modification

 Files It copies itself to the following location:
   • %SYSDIR%\1042m.exe



It deletes the initially executed copy of itself.



The following file is created:

– A file that is for temporary use and it might be deleted afterwards:
   • %SYSDIR%\1962655114.dat




It tries to download a file:

– The locations are the following:
   • http://ShopVideoSchools.cn/v3/**********
   • http://ShopFilmWorld.cn/v3/**********
   • http://MartPictureExistence.cn/v3/**********
   • http://ShopPictureLife.cn/v3/**********
   • http://ShopPigLiving.cn/v3/**********
   • http://ShopVideoFest.cn/v3/**********
At the time of writing this file was not online for further investigation.

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

– [HKLM\SYSTEM\CurrentControlSet\Services\RemoteAccessdmadmin]
   • "ImagePath"="%SYSDIR%\1042m.exe srv"
   • "DisplayName"="Routing and Remote Access RemoteAccessdmadmin"
   • "ObjectName"="LocalSystem"
   • "Start"=dword:0x2
   • "ErrorControl"=dword:0x0
   • "Type"=dword:0x110

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

Description inserted by Petre Galan on Thursday, October 15, 2009

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