ThreatExpert Report: Worm.Win32.VBNA.b, Troj/VB-FXJ, VirTool:Win32/VBInject.RT

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Submission Summary:

Submission details:

Submission received: 25 October 2012, 17:53:50
Processing time: 8 min 21 sec
Submitted sample:

File MD5: 0x53459AFF39A3A75477DFCEDD7422F75B
File SHA-1: 0x91B55969C43EE41D68DDE4BF927C0B990FE388C9
Filesize: 225,280 bytes
Alias:

Worm.Win32.VBNA.b [Kaspersky Lab]
Troj/VB-FXJ [Sophos]
VirTool:Win32/VBInject.RT [Microsoft]

Summary of the findings:

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

Technical Details:

Possible Security Risk

Attention! The following threat category was identified:

Threat Category	Description
	A network-aware worm that attempts to replicate across the existing network(s)

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\tmp.ini	5 bytes	MD5: 0xD1EA279FB5559C020A1B4137DC4DE237 SHA-1: 0xDB6F8988AF46B56216A6F0DAF95AB8C9BDB57400	(not available)
2	[file and pathname of the sample #1]	225,280 bytes	MD5: 0x53459AFF39A3A75477DFCEDD7422F75B SHA-1: 0x91B55969C43EE41D68DDE4BF927C0B990FE388C9	Worm.Win32.VBNA.b [Kaspersky Lab] Troj/VB-FXJ [Sophos] VirTool:Win32/VBInject.RT [Microsoft]

Note:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/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]	229,376 bytes

Other details

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

Romania

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