ThreatExpert Report: Mal/Behav-043, Trojan:MSIL/Bladabindi.B

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Submission Summary:

Submission details:

Submission received: 3 October 2012, 15:07:10
Processing time: 8 min 32 sec
Submitted sample:

File MD5: 0xB98E676577FA4B5B325E77794E9CF969
File SHA-1: 0x5EA6F9643514C1CD47857F5C55A36E0FFE3A9952
Filesize: 64,512 bytes
Alias:

Mal/Behav-043 [Sophos]
Trojan:MSIL/Bladabindi.B [Microsoft]

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	c:\! My Picutre.SCR %Temp%\win.exe %Programs%\Startup\45cd603ee23d7c7a771df421f5721e99.exe [file and pathname of the sample #1]	64,512 bytes	MD5: 0xB98E676577FA4B5B325E77794E9CF969 SHA-1: 0x5EA6F9643514C1CD47857F5C55A36E0FFE3A9952	Mal/Behav-043 [Sophos] Trojan:MSIL/Bladabindi.B [Microsoft]
2	%Temp%\win.exe.tmp	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)

Notes:

%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).
%Programs% is a variable that refers to the file system directory that contains the user's program groups. A typical path is C:\Documents and Settings\[UserName]\Start Menu\Programs.

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
win.exe	%Temp%\win.exe	N/A

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\45cd603ee23d7c7a771df421f5721e99

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]

45cd603ee23d7c7a771df421f5721e99 = ""%Temp%\win.exe" .."

so that win.exe runs every time Windows starts

[HKEY_CURRENT_USER\Environment]

SEE_MASK_NOZONECHECKS = "1"

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

45cd603ee23d7c7a771df421f5721e99 = ""%Temp%\win.exe" .."

so that win.exe runs every time Windows starts

[HKEY_CURRENT_USER\Software\45cd603ee23d7c7a771df421f5721e99]

US = "@"

Other details

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

45cd603ee23d7c7a771df421f5721e99

The following Host Names were requested from a host database:

192.5.5.241
www2q.hopto.org

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