Submission Summary:

• Submission details:
• Submission received: 28 July 2012, 03:39:30
• Processing time: 10 min 1 sec
• Submitted sample:
• File MD5: 0xA8F3C1971A8C162440BAB1AE370CE142
• File SHA-1: 0x8825553F116B2667670CF8E79CB2F15BF6F5FE8E
• Filesize: 941,056 bytes
• Alias:
• BackDoor-EFI [McAfee]
• Troj/Delf-FFY [Sophos]
• TrojanDropper:Win32/Agent.BAD [Microsoft]
• Trojan.Win32.ProcessHijack [Ikarus]
• Win32/IRCBot.worm.variant [AhnLab]

Technical Details:

• The new window was created, as shown below:

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Bifrost\server.exe %Temp%\1.exe.exe %ProgramFiles%\Bifrost\server.exe	122,749 bytes	MD5: 0x7042EB541E090F670DE4A58C460CF435 SHA-1: 0x4D87F49E568434AE8A5C615A3C97E0BC4A3317F8	Mal/VBInject-AK [Sophos] Trojan.SuspectCRC [Ikarus] packed with Molebox [Kaspersky Lab]
2	%Temp%\HackeD FacebooK.exe	643,072 bytes	MD5: 0xEB1495C0514EF932557A29102AF53F5A SHA-1: 0x560CDF519EF08C5F232E67F320BAC6D924E1C7F0	(not available)
3	[file and pathname of the sample #1]	941,056 bytes	MD5: 0xA8F3C1971A8C162440BAB1AE370CE142 SHA-1: 0x8825553F116B2667670CF8E79CB2F15BF6F5FE8E	BackDoor-EFI [McAfee] Troj/Delf-FFY [Sophos] TrojanDropper:Win32/Agent.BAD [Microsoft] Trojan.Win32.ProcessHijack [Ikarus] Win32/IRCBot.worm.variant [AhnLab]

• Notes:
• %AppData% is a variable that refers to the file system directory that serves as a common repository for application-specific data. A typical path is C:\Documents and Settings\[UserName]\Application Data.
• %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).
• %ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

• The following directories were created:
• %AppData%\Bifrost
• %ProgramFiles%\Bifrost

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
HackeD FacebooK.exe	%Temp%\hacked facebook.exe	643,072 bytes
server.exe	%ProgramFiles%\Bifrost\server.exe	311,296 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	970,752 bytes
1.exe.exe	%Temp%\1.exe.exe	311,296 bytes

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{EFD02839-D3E9-491F-2405-DECE7A8A0C0C}
• 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\{EFD02839-D3E9-491F-2405-DECE7A8A0C0C}]
• stubpath = "%ProgramFiles%\Bifrost\server.exe s"

so that server.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\Bifrost]
• nck = F0 2B D4 46 CC 44 A2 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:
• Bif1234

• The following Host Name was requested from a host database:
• om-alhareth37.no-ip.info

• 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: