Submission Summary:

• Submission details:
• Submission received: 6 July 2012, 21:11:41
• Processing time: 13 min 7 sec
• Submitted sample:
• File MD5: 0x635853676B4B179CA39525E1E5A64594
• File SHA-1: 0x0C842AAB011A14DD37DCFCF026B978B57461CD8A
• Filesize: 21,504 bytes
• Alias:
• Backdoor.Trojan [Symantec]
• Mal/DelfInj-A [Sophos]
• Trojan.Win32.Spy [Ikarus]

• Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
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 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%\Microsoft\Windows\((Mutex)).cfg	2,032 bytes	MD5: 0x677E0AC7B1448A4F4E20033F385D667C SHA-1: 0x8F271BFAF53B398F6EA0CCDF9089E95856D89287	(not available)
2	%AppData%\Microsoft\Windows\((Mutex)).dat	2 bytes	MD5: 0x84CAD01FDB44AE58DBE6C3973DCD87F5 SHA-1: 0x4700B42849FB35BE323774820BF1BC8019D26C80	(not available)
3	%Windir%\InstallDir\Server.exe [file and pathname of the sample #1]	21,504 bytes	MD5: 0x635853676B4B179CA39525E1E5A64594 SHA-1: 0x0C842AAB011A14DD37DCFCF026B978B57461CD8A	Backdoor.Trojan [Symantec] Mal/DelfInj-A [Sophos] Trojan.Win32.Spy [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.
• %Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.

• The following directory was created:
• %Windir%\InstallDir

Memory Modifications

• There were new processes created in the system:

Process Name	Process Filename	Main Module Size
iexplore.exe	%ProgramFiles%\Internet Explorer\iexplore.exe	102,400 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	90,112 bytes
server.exe	%Windir%\installdir\server.exe	90,112 bytes

• 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_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}
• HKEY_CURRENT_USER\Software\((Mutex))

• The newly created Registry Values are:
• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Active Setup\Installed Components\{5460C4DF-B266-909E-CB58-E32B79832EB2}]
• StubPath = "%Windir%\InstallDir\Server.exe restart"

so that Server.exe runs every time Windows starts

• [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run]
• HKLM = "%Windir%\InstallDir\Server.exe"

so that Server.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run]
• HKCU = "%Windir%\InstallDir\Server.exe"

so that Server.exe runs every time Windows starts

• [HKEY_CURRENT_USER\Software\((Mutex))]
• ServerStarted = "7/6/2012 21:11:45 PM"
• InstalledServer = "%Windir%\InstallDir\Server.exe"

Other details

• To mark the presence in the system, the following Mutex objects were created:
• ((Mutex))
• XTREMEUPDATE

• The data identified by the following URLs was then requested from the remote web server:
• http://127.0.0.1:81/1234567890.functions
• http://kazanthehacker.no-ip.biz:81/1234567890.functions

• 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