ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 18 November 2009, 23:45:21
Processing time: 7 min 22 sec
Submitted sample:

File MD5: 0xE8222DC247D88E4AEFFFCE783E7F02B1
File SHA-1: 0x1D049BD2D229AEE7950F7FBD961105580A2EEFF6
Filesize: 186,368 bytes

Summary of the findings:

What's been found	Severity Level
Contains characteristics of a rogue antispyware application that uses aggressive and deceptive advertising along with false reports of exaggerated system security threats to persuade users to download and purchase their product.
Attempts to use BITS (Background Intelligent Transfer Service). Some threats are known to use BITS to evade firewall filtering and download files without firewall inspection.
Downloads/requests other files from Internet.

Technical Details:

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File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	%CommonAppData%\Microsoft\Network\Downloader\qmgr0.dat	4,232 bytes	MD5: 0x82D2F6D4BE30640DEA62CB7C067A6CD9 SHA-1: 0xEAF259FC2FF0BE86DCD96180FB819D28DFE8D226
2	%CommonAppData%\Microsoft\Network\Downloader\qmgr1.dat	5,124 bytes	MD5: 0x051B767E1D7B5F228FEC20A79DCA0E69 SHA-1: 0x33B5A7C9CEF9362B64C098A190B130C76F569782
3	%ProgramFiles%\CSec\cs.exe.tmp4	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
4	[file and pathname of the sample #1]	186,368 bytes	MD5: 0xE8222DC247D88E4AEFFFCE783E7F02B1 SHA-1: 0x1D049BD2D229AEE7950F7FBD961105580A2EEFF6

Notes:

%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.
%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

The following directories were created:

%CommonAppData%\Microsoft\Network\Downloader
%ProgramFiles%\CSec

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]	4,509,696 bytes

The following system service was modified:

Service Name	Display Name	New Status	Service Filename
BITS	Background Intelligent Transfer Service	"Running"	%System%\svchost.exe -k netsvcs

Notes:

%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).

Registry Modifications

The following Registry Key was created:

HKEY_LOCAL_MACHINE\SOFTWARE\036572811B10AEE34F7A01871D13AA85

The newly created Registry Value is:

[HKEY_LOCAL_MACHINE\SOFTWARE\036572811B10AEE34F7A01871D13AA85]

gwbrammuhmt = "I=::Hpj^T!!"
jxawt = "CFf[^!!"
dfdwt = "IsN]AMF[AIVZE"
owzxxrza = "AdvBE!!"
usia = "Ddw_Kio^MI?Hp!!"

Other details

The following port was open in the system:

Port	Protocol	Process
1054	UDP	[file and pathname of the sample #1]

Heuristics Analysis

Heuristically identified capability to use BITS (Background Intelligent Transfer Service) to schedule the following download task:

http://windowsupdate8.com/download/timesroman.tif

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