ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 10 September 2011, 08:23:50
Processing time: 9 min 57 sec
Submitted sample:

File MD5: 0xADC7359A2506ACC07F75F0FCAB3BE954
File SHA-1: 0x756CD8884EFEB673EEA9310766557E0440A1AEC0
Filesize: 204,800 bytes

Summary of the findings:

What's been found	Severity Level
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk

Description

Worm.IM.Sohanad

Worm.IM.Sohanad spreads via Yahoo Messenger and infects Windows. It sends a message to all Yahoo Messenger contacts of an infected user. The message contains a link enticing users to download the worm. The worm also disable certain Windows functionalities abd hijacks Internet Explorer homepage. It also downloads other maware and it will also attempt to propagate via the means of creating copies of itself onto removable devices such as USB flash and hard drives.

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	%System%\Mess.txt	67 bytes	MD5: 0x75D21B934013CB84FD9F81CBB490BB32 SHA-1: 0x1A5C1A233AB76319B0C8DAD53F090F07990AA286
2	[file and pathname of the sample #1]	204,800 bytes	MD5: 0xADC7359A2506ACC07F75F0FCAB3BE954 SHA-1: 0x756CD8884EFEB673EEA9310766557E0440A1AEC0
3	%System%\setting.ini	96 bytes	MD5: 0x621408FC3B77D1C1EAF865AF72A9253F SHA-1: 0xB5EAA15A6FD511980B1D330BA97BBEBC08CF1E6A

Note:

%System% is a variable that refers to the System folder. By default, this is C:\Windows\System (Windows 95/98/Me), C:\Winnt\System32 (Windows NT/2000), or C:\Windows\System32 (Windows XP).

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	N/A

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