Submission Summary:

• Submission details:
• Submission received: 3 November 2009, 16:27:23
• Processing time: 5 min 5 sec
• Submitted sample:
• File MD5: 0xDF9CD374F36FF4DFED39230798D022AE
• File SHA-1: 0x16218BD0D008AFEEADE356EE859394ACF408FF78
• Filesize: 1,054,302 bytes
• Alias: Mal/Bifrose-S [Sophos]

• Summary of the findings:

What's been found	Severity Level
Capability to terminate Antivirus, Firewall and other security related processes.
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%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46\Virtual\STUBEXE\@SYSTEM@\BiFrOsT Dr.AdNaN 0.3 ByPaSs LiMiT.exe	17,408 bytes	MD5: 0xEC5919027D5303EA0EBFEB56FBB9FFDB SHA-1: 0x5ED85D563FF30D48006B1325A11366129374E421	Win-Trojan/Poison.17408.U [AhnLab]
2	[file and pathname of the sample #1]	1,054,302 bytes	MD5: 0xDF9CD374F36FF4DFED39230798D022AE SHA-1: 0x16218BD0D008AFEEADE356EE859394ACF408FF78	Mal/Bifrose-S [Sophos]

• Note:
• %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.

• The following directories were created:
• %System%\Dev-PoinT
• %AppData%\Xenocode
• %AppData%\Xenocode\Sandbox
• %AppData%\Xenocode\Sandbox\Bifrost
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46\Virtual
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46\Virtual\STUBEXE
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46\Virtual\STUBEXE\@SYSTEM@
• %AppData%\Xenocode\Sandbox\Bifrost\0, 1\2009.11.03T17.46\Virtual\SXS

• Notes:
• %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 were new processes created in the system:

• The following module was loaded into the address space of other process(es):

Module Name	Module Filename	Address Space Details
vmx.dll	%ProgramFiles%\Xenocode\vmx.dll	Process name: [filename of the sample #1] Process filename: [file and pathname of the sample #1] Address space: 0x10000000 - 0x10037000

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

Registry Modifications

• The following Registry Keys were created:
• HKEY_CURRENT_USER\Software\BIFROST1.2
• HKEY_CURRENT_USER\Software\Xenocode
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D\Virtual
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D\Virtual\MODIFIED
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D\Virtual\MODIFIED\@HKCR@
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D\Virtual\MODIFIED\@HKCR@\CLSID
• HKEY_CURRENT_USER\Software\Xenocode\SandboxCache\432CB24D\Virtual\MODIFIED\@HKLM@

• 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

Heuristics Analysis

• Heuristically identified capability to terminate the following security related processes: