ThreatExpert Report: Trojan.Win32.Sasfis, Trojan.Gen, Trojan.Win32.Sasfis.dbhx

Submission Summary:

Submission details:

Submission received: 25 October 2012, 10:34:28
Processing time: 12 min 58 sec
Submitted sample:

File MD5: 0x4A3244BBA7B269E722218E0B3ADE72A7
File SHA-1: 0xBEDC042EF17420E0B3B737D83706F9C58FF1157A
Filesize: 450,560 bytes
Alias: Trojan.Win32.Sasfis [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\game.dll	155,648 bytes	MD5: 0x990A99F3ACCE68F77E54E82E24499860 SHA-1: 0x7F3654E06FE7CE01EC92243A47CD3E789848EFFF	Trojan.Gen [Symantec] Trojan.Win32.Sasfis.dbhx [Kaspersky Lab] Trojan.Win32.Sasfis [Ikarus]
2	[file and pathname of the sample #1]	450,560 bytes	MD5: 0x4A3244BBA7B269E722218E0B3ADE72A7 SHA-1: 0xBEDC042EF17420E0B3B737D83706F9C58FF1157A	Trojan.Win32.Sasfis [Ikarus]

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]	544,768 bytes

Other details

Analysis of the file resources indicate the following possible country of origin:

China

To mark the presence in the system, the following Mutex object was created:

_!SHMSFTHISTORY!_

The following port was open in the system:

Port	Protocol	Process
1038	UDP	[file and pathname of the sample #1]

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
shell_explorer.1	80	(null)	(null)
www.663wg.com	80	(null)	(null)

The following GET requests were made:

index.html
index.jpg

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