Submission Summary:

• Submission details:
• Submission received: 20 September 2012, 20:40:00
• Processing time: 13 min 11 sec
• Submitted sample:
• File MD5: 0xCF968DBB979BE298EFF7B134624B616A
• File SHA-1: 0x65602707C68AD34B9F1739338B005F83BA3ED433
• Filesize: 556,032 bytes
• Alias:
• Trojan.Win32.Pakes.ofu [Kaspersky Lab]
• Generic BackDoor.aad [McAfee]
• Mal/MSIL-AY [Sophos]
• Worm:Win32/Rebhip.A [Microsoft]
• Trojan.Win32.Pakes [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Produces outbound traffic.
Creates a startup registry entry.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

• Attention! The following threat category was identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\Bifrost\logg.dat %ProgramFiles%\Bifrost\logg.dat	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	%AppData%\Bifrost\server.exe %Temp%\0.exe %ProgramFiles%\Bifrost\server.exe	100,285 bytes	MD5: 0xCE863EB9920B66DEF0756B98BCC975D3 SHA-1: 0x1FADD9AEEC949C04E21782AD8BE843988C7A703D	Win32.SuspectCrc [Ikarus]
3	%Temp%\1.exe	312,320 bytes	MD5: 0x083E1FDB7E8911194ABE575BDAABE603 SHA-1: 0xA1E463DBEC17752324D5073FBCBA9BCDC3FC8CEE	(not available)
4	[file and pathname of the sample #1]	556,032 bytes	MD5: 0xCF968DBB979BE298EFF7B134624B616A SHA-1: 0x65602707C68AD34B9F1739338B005F83BA3ED433	Trojan.Win32.Pakes.ofu [Kaspersky Lab] Generic BackDoor.aad [McAfee] Mal/MSIL-AY [Sophos] Worm:Win32/Rebhip.A [Microsoft] Trojan.Win32.Pakes [Ikarus]

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

• 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
server.exe	%ProgramFiles%\Bifrost\server.exe	36,864 bytes
0.exe	%Temp%\0.exe	36,864 bytes
1.exe	%Temp%\1.exe	N/A

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{07B90934-C233-16D2-1288-6E3BE370585F}
• 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\{07B90934-C233-16D2-1288-6E3BE370585F}]
• 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 = 01

Other details

• To mark the presence in the system, the following Mutex object was created:
• Bif1234

• The following Host Names were requested from a host database:
• max15.myftp.biz
• bbox20.no-ip.org

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

• There was application-defined hook procedure installed into the hook chain (e.g. to monitor keystrokes). The installed hook is handled by the following module:
• %ProgramFiles%\Internet Explorer\iexplore.exe

Outbound traffic (potentially malicious)

• There was an outbound traffic produced on port 81: