Submission Summary:

• Submission details:
• Submission received: 16 August 2012, 18:30:33
• Processing time: 8 min 29 sec
• Submitted sample:
• File MD5: 0x2C90F93B3EEC0B91500E618140733307
• File SHA-1: 0x3F774692E854B8ADA7863223ADEE6D45A14B7B80
• Filesize: 60,285 bytes
• Alias:
• Trojan.Win32.Inject.ekga [Kaspersky Lab]
• Mal/EncPk-ACT [Sophos]

• 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! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Backdoor.Bifrose	Backdoor.Bifrose is a backdoor trojan that attempts to propagate by exploiting local network shares. It will also attempt to join a predefined IRC server and channel in order to participate in DDoS attacks.

• 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 file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1] %System%\System32\Microsoft.exe	60,285 bytes	MD5: 0x2C90F93B3EEC0B91500E618140733307 SHA-1: 0x3F774692E854B8ADA7863223ADEE6D45A14B7B80	Trojan.Win32.Inject.ekga [Kaspersky Lab] Mal/EncPk-ACT [Sophos]

• Note:
• %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).

• The following directory was created:
• %System%\System32

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
Microsoft.exe	%System%\System32\Microsoft.exe	33,696 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	90,112 bytes

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{9D71D88C-C598-4935-C5D1-43AA4DB90836}
• HKEY_LOCAL_MACHINE\SOFTWARE\System32
• HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaResources\msvideo
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaResources\msvideo
• HKEY_CURRENT_USER\Software\System32

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{9D71D88C-C598-4935-C5D1-43AA4DB90836}]
• stubpath = "%System%\System32\Microsoft.exe s"

so that Microsoft.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\System32]
• nck = E4 1F E3 19 9F 30 D0 5D 1A A4 92 2B A5 CC 04 67
• [HKEY_CURRENT_USER\Software\System32]
• klg = 00

Other details

• To mark the presence in the system, the following Mutex object was created:
• Win32

• The following Host Names were requested from a host database:
• hexhack.no-ip.org
• 192.5.5.241

• 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 505: