Worm/Viking.N - Worm

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Summary

Full description

Statistics

Virus:	Worm/Viking.N
Date discovered:	17/07/2006
Type:	Worm
In the wild:	Yes
Reported Infections:	Low
Distribution Potential:	Low
Damage Potential:	Low to medium
Static file:	Yes
File size:	23.552 Bytes
MD5 checksum:	98213641aaca1e7fa88a4ea77a2975ef
VDF version:	6.35.00.123 - Wed, 05 Jul 2006 15:24 (GMT+1)
IVDF version:	6.35.00.151 - Wed, 12 Jul 2006 06:55 (GMT+1)

General Method of propagation:
   • No own spreading routine

Aliases:
   • Symantec: W32.Looked.P
   • TrendMicro: PE_LOOKED.AE-O
   • VirusBuster: Worm.Viking.R
   • Bitdefender: Win32.Worm.Viking.E

Platforms / OS:
   • Windows 95
   • Windows 98
   • Windows 98 SE
   • Windows NT
   • Windows ME
   • Windows 2000
   • Windows XP
   • Windows 2003

Side effects:
   • Downloads malicious files
   • Registry modification

Files It tries to download some files:

– The location is the following:
   • http://www.wowchian.com/sysdl/**********
It is saved on the local hard drive under: C:\1.txt

– The location is the following:
   • http://www.wowchian.com/sysdl/**********
It is saved on the local hard drive under: %malware execution directory%\0Sy.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Lineage.EM.5

– The location is the following:
   • http://www.wowchian.com/sysdl/**********
It is saved on the local hard drive under: %malware execution directory%\1Sy.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too.

– The location is the following:
   • http://www.wowchian.com/sysdl/**********
It is saved on the local hard drive under: %malware execution directory%\2Sy.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Lmir.12.A.3

– The location is the following:
   • http://www.wowchian.com/sysdl/**********
It is saved on the local hard drive under: %malware execution directory%\3Sy.exe Furthermore this file gets executed after it was fully downloaded. Further investigation pointed out that this file is malware, too. Detected as: TR/PSW.Lineage.VD

Registry The following registry key is added:

– [HKLM\SOFTWARE\Microsoft\Windows]
   • "ver_down0"="%number%.%number%"
   • "ver_down1"="%number%.%number%"
   • "ver_down2"="%number%.%number%"
   • "ver_down3"="%number%.%number%"

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

See a brief description here.

Description inserted by Monica Ghitun on Mon, 17 Jul 2006 13:53 (GMT+1)
Description updated by Monica Ghitun on Thu, 03 Aug 2006 15:07 (GMT+1)

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