ThreatExpert Report: Troj/FakeAV-FUG

Submission Summary:

Submission details:

Submission received: 16 July 2012, 14:09:14
Processing time: 11 min 32 sec
Submitted sample:

File MD5: 0xF36760E1C5DA807268E4A67D12957115
File SHA-1: 0x2AA1B1FCF108201A7DC819AC6BFE3C62CE70F496
Filesize: 413,696 bytes
Alias: Troj/FakeAV-FUG [Sophos]

Summary of the findings:

What's been found	Severity Level
Creates a startup registry entry.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%CommonAppData%\6F638C1AFE83369885976898E56C3425\6F638C1AFE83369885976898E56C3425	1,872 bytes	MD5: 0x32BA2E32FFA612A00BC03BC06A38436D SHA-1: 0xBF561F0A5B26BFDB37DD21CEAFAF0B08F73E9811	(not available)
2	%CommonAppData%\6F638C1AFE83369885976898E56C3425\6F638C1AFE83369885976898E56C3425.exe [file and pathname of the sample #1]	413,696 bytes	MD5: 0xF36760E1C5DA807268E4A67D12957115 SHA-1: 0x2AA1B1FCF108201A7DC819AC6BFE3C62CE70F496	Troj/FakeAV-FUG [Sophos]
3	%CommonAppData%\6F638C1AFE83369885976898E56C3425\6F638C1AFE83369885976898E56C3425.ico	4,286 bytes	MD5: 0xEF6B46F858745A383AEAD66FBC674763 SHA-1: 0x4B0D96B52B989A4FB048E1C45B611471B6277570	(not available)

Note:

%CommonAppData% is a variable that refers to the file system directory containing application data for all users. A typical path is C:\Documents and Settings\All Users\Application Data.

The following directory was created:

%CommonAppData%\6F638C1AFE83369885976898E56C3425

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]	827,392 bytes

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce]

6F638C1AFE83369885976898E56C3425 = "%CommonAppData%\6F638C1AFE83369885976898E56C3425\6F638C1AFE83369885976898E56C3425.exe"

so that 6F638C1AFE83369885976898E56C3425 runs every time Windows starts

Other details

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

Russian Federation

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