ThreatExpert Report: W32/Koobfa-Gen, Worm:Win32/Koobface.gen!A

Visit ThreatExpert web site

Close Report

Submission Summary:

Submission details:

Submission received: 10 December 2008, 12:45:34
Processing time: 6 min 18 sec
Submitted sample:

File MD5: 0x7B35DE4E9BBA43B9BD5C41843435712D
File SHA-1: 0x7DA482BA3128A43E3DD2F6CEF58F84A28DB255B7
Filesize: 90,112 bytes
Alias:

W32/Koobfa-Gen [Sophos]
Worm:Win32/Koobface.gen!A [Microsoft]

Summary of the findings:

What's been found	Severity Level
Contains characteristics of Koobface, a worm that spreads through social networking sites.

Technical Details:

The new window was created, as shown below:

NOTICE: The content shown in the above window is captured automatically and is not controlled or endorsed by ThreatExpert.
Please contact us on this link should any material be offensive or inappropriate and we will ensure any such content is blocked from future viewers of the report.

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\bolivar29.exe	90,112 bytes	MD5: 0x7B35DE4E9BBA43B9BD5C41843435712D SHA-1: 0x7DA482BA3128A43E3DD2F6CEF58F84A28DB255B7	W32/Koobfa-Gen [Sophos] Worm:Win32/Koobface.gen!A [Microsoft]
2	%Windir%\fmark2.dat	1 bytes	MD5: 0xC4CA4238A0B923820DCC509A6F75849B SHA-1: 0x356A192B7913B04C54574D18C28D46E6395428AB	(not available)

Note:

%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	90,112 bytes
bolivar29.exe	%Windir%\bolivar29.exe	90,112 bytes

Other details

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

4334ffghfghfgh45y54f5

All content ("Information") contained in this report is the copyrighted work of Threat Expert Ltd and its associated companies ("ThreatExpert") and may not be copied without the express permission of ThreatExpert.

The Information is provided on an "as is" basis. ThreatExpert disclaims all warranties, whether express or implied, to the maximum extent permitted by law, including the implied warranties that the Information is merchantable, of satisfactory quality, accurate, fit for a particular purpose or need, or non-infringing, unless such implied warranties are legally incapable of exclusion. Further, ThreatExpert does not warrant or make any representations regarding the use or the results of the use of the Information in terms of their correctness, accuracy, reliability, or otherwise.