ThreatExpert Report: Backdoor.Trojan, Constructor.Win32.Bifrose.j, BackDoor-CEP.gen.au..

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Submission Summary:

Submission details:

Submission received: 3 October 2012, 11:55:37
Processing time: 7 min 56 sec
Submitted sample:

File MD5: 0x5F030CBD5C48AA389BECB55E3886F4F0
File SHA-1: 0x7A2C5788383DB96C3CBB543363DE8BAE451983E0
Filesize: 1,466,368 bytes
Alias:

Backdoor.Trojan [Symantec]
Constructor.Win32.Bifrose.j [Kaspersky Lab]
BackDoor-CEP.gen.au [McAfee]
Mal/Bifrose-S [Sophos]
Constructor:Win32/Bifrose.A [Microsoft]
Constructor.Win32.Bifrose [Ikarus]
Constructor/Bifrose.1466368 [AhnLab]

Summary of the findings:

What's been found	Severity Level
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! The following threat categories were identified:

Threat Category	Description
	A hacktool that could be used by attackers to break into a system
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

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]	1,466,368 bytes	MD5: 0x5F030CBD5C48AA389BECB55E3886F4F0 SHA-1: 0x7A2C5788383DB96C3CBB543363DE8BAE451983E0	Backdoor.Trojan [Symantec] Constructor.Win32.Bifrose.j [Kaspersky Lab] BackDoor-CEP.gen.au [McAfee] Mal/Bifrose-S [Sophos] Constructor:Win32/Bifrose.A [Microsoft] Constructor.Win32.Bifrose [Ikarus] Constructor/Bifrose.1466368 [AhnLab]

The following directory was created:

%System%\DEV-POINT

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).

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
[filename of the sample #1]	[file and pathname of the sample #1]	1,466,368 bytes

Registry Modifications

The following Registry Key was created:

HKEY_CURRENT_USER\Software\BIFROST1.2

The newly created Registry Value is:

[HKEY_CURRENT_USER\Software\BIFROST1.2]

settings = 51 00 00 00 00 00 00 00 00 00 00 00 6D 79 70 61 73 73 00 00 00 00 00 00 00 00 00 00 61 64 64 6F 6E 73 2E 64 61 74 00 00 00 00 00 00 01 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 01 00 00 00

Other details

Analysis of the file resources indicate the following possible country of origin:

Sweden

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

BIFROST1.2

The following port was open in the system:

Port	Protocol	Process
81	TCP	[file and pathname of the sample #1]

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