Submission Summary:

• Submission details:
• Submission received: 3 August 2012, 22:22:29
• Processing time: 9 min 12 sec
• Submitted sample:
• File MD5: 0xC70F5934317FC2B12B35667950C430DF
• File SHA-1: 0x74752100501F16624EB0D678D23B00505041C6A0
• Filesize: 107,759 bytes
• Alias:
• Backdoor.Trojan [Symantec]
• Trojan.Win32.Refroso.dpqn [Kaspersky Lab]
• Backdoor:Win32/Bifrose.AE [Microsoft]
• Virus.Win32.VBInject [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 categories were identified:

Threat Category	Description
	A malicious trojan horse or bot that may represent security risk for the compromised system and/or its network environment
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

• The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AppData%\addons.dat	25,230 bytes	MD5: 0xF96D3650A64628D9D1C185A00C8A9070 SHA-1: 0x1FA868871F1C67AA0ECB725BB730E2036B2547E2	(not available)
2	%System%\relplar\logg.dat	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
3	%System%\relplar\win.exe [file and pathname of the sample #1]	107,759 bytes	MD5: 0xC70F5934317FC2B12B35667950C430DF SHA-1: 0x74752100501F16624EB0D678D23B00505041C6A0	Backdoor.Trojan [Symantec] Trojan.Win32.Refroso.dpqn [Kaspersky Lab] Backdoor:Win32/Bifrose.AE [Microsoft] Virus.Win32.VBInject [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.
• %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%\relplar

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
win.exe	%System%\relplar\win.exe	172,032 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	172,032 bytes

• There were new memory pages created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
win.exe	%System%\relplar\win.exe	36,864 bytes
win.exe	%System%\relplar\win.exe	618,496 bytes

Registry Modifications

• The following Registry Keys were created:
• HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{433AC5F1-41C9-B86A-625C-3F0E4BD5677F}
• HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\MediaResources\msvideo
• HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\MediaResources\msvideo

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft]
• nck = 63 98 51 A2 06 44 A2 32 74 C3 CD 74 FA 93 5B 67
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{433AC5F1-41C9-B86A-625C-3F0E4BD5677F}]
• stubpath = "%System%\relplar\win.exe s"

so that win.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft]
• klg = 01
• plg1 = EA 44 DC 02 A3 27 D7 5F 11 AD B9 07 DA F2 35 03 2A 35 8E 58 1B 0E 11 94 D4 F9 28 1F 11 4D 98 BC D2 64 44 8E CD F9 B9 BA 23 BD 45 ED 15 A6 77 AF B8 7C 04 4D 90 91 58 5F 81 61 19 72 00 4E 53 7A E1 AB E6 8B 30 CA 34 56 F9 AD AD F8 4D 41 0F F6 9F 90 A2 1

Other details

• To mark the presence in the system, the following Mutex object was created:
• qmr436

• The following Host Name was requested from a host database:
• qmarai12341.no-ip.biz

• 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

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

Outbound traffic (potentially malicious)

• There was an outbound traffic produced on port 90: