Submission Summary:

• Submission details:
• Submission received: 3 August 2012, 22:01:21
• Processing time: 3 min 19 sec
• Submitted sample:
• File MD5: 0x08DCA02D208980BB00205A77BDFDF29E
• File SHA-1: 0xA4A8505DA9FA8CC25D4F8E854380C2CE7D296991
• Filesize: 291,140 bytes

Technical Details:

File System Modifications

• The following file was created in the system:

#	Filename(s)	File Size	File Hash
1	%ProgramFiles%\Bifrost\server.exe [file and pathname of the sample #1]	291,140 bytes	MD5: 0x08DCA02D208980BB00205A77BDFDF29E SHA-1: 0xA4A8505DA9FA8CC25D4F8E854380C2CE7D296991

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

• The following directory was created:
• %ProgramFiles%\Bifrost

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]	266,240 bytes
server.exe	%ProgramFiles%\bifrost\server.exe	266,240 bytes

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{9B71D88C-C598-4935-C5D1-43AA4DB90836}
• HKEY_LOCAL_MACHINE\SOFTWARE\Bifrost
• HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaResources\msvideo
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaResources\msvideo
• HKEY_CURRENT_USER\Software\Bifrost

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{9B71D88C-C598-4935-C5D1-43AA4DB90836}]
• stubpath = "%ProgramFiles%\Bifrost\server.exe s"

so that server.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\Bifrost]
• nck = ED 1B E6 27 B9 28 D6 32 74 C3 CD 74 FA 93 5B 67
• [HKEY_CURRENT_USER\Software\Bifrost]
• klg = 00

Other details

• To mark the presence in the system, the following Mutex object was created:
• Bif123

• The following Host Name was requested from a host database:
• m501.no-ip.biz

• There was registered attempt to establish connection with the remote host. The connection details are:

Outbound traffic (potentially malicious)

• There was an outbound traffic produced on port 81: