ThreatExpert Report: Trojan-Dropper.Win32.Agent.auxo, Backdoor.Trojan, FFSearcher, Mal/Generic-A..

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Submission Summary:

Submission details:

Submission received: 6 July 2009, 09:56:53
Processing time: 6 min 52 sec
Submitted sample:

File MD5: 0x09DBD01791F310B9D97378CAC6EFA185
File SHA-1: 0xEC04A28A8EE0D38BC3590CC2301C0E9D30077938
Filesize: 76,800 bytes
Alias:

Backdoor.Trojan [Symantec]
Trojan-Dropper.Win32.Agent.auxo [Kaspersky Lab]
FFSearcher [McAfee]
Mal/Generic-A [Sophos]
TrojanDropper:Win32/Agent [Microsoft]
Trojan-Dropper.Win32.Agent [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Registers a 32-bit in-process server DLL.
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
	A code with the rootkit-specific techniques designed to hide the software presence in the system
	A hacktool that could be used by attackers to break into a 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]	76,800 bytes	MD5: 0x09DBD01791F310B9D97378CAC6EFA185 SHA-1: 0xEC04A28A8EE0D38BC3590CC2301C0E9D30077938	Backdoor.Trojan [Symantec] Trojan-Dropper.Win32.Agent.auxo [Kaspersky Lab] FFSearcher [McAfee] Mal/Generic-A [Sophos] TrojanDropper:Win32/Agent [Microsoft] Trojan-Dropper.Win32.Agent [Ikarus]

The following Alternate Data Stream was created in the system:

#	ADS name(s)	ADS Size	ADS Hash	Alias
1	%System%\netcfgx.dll:Zone.Identifier	49,152 bytes	MD5: 0x00A4B5F61E2A954D6B4F644E22FE6794 SHA-1: 0x748EC1E3C0CCC14E0DFEF35B4895AD1418676C4C	Hacktool.Rootkit [Symantec] Rootkit.Win32.Agent.lrn [Kaspersky Lab] FFSearcher.dll [McAfee] Mal/Generic-A [Sophos] Gen.Trojan [Ikarus] Win-Trojan/Agent.49152.AFI [AhnLab]

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]	94,208 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000\Control

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5B035261-40F9-11D1-AAEC-00805FC1270E}\InProcServer32]

(Default) = "%System%\netcfgx.dll:Zone.Identifier"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000]

Service = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000]

Service = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}\0000]

Service = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "{79007602-0CDB-4405-9DBF-1257BB3226ED}"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226ED}]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}\0000]

Service = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "{79007602-0CDB-4405-9DBF-1257BB3226EE}"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_{79007602-0CDB-4405-9DBF-1257BB3226EE}]

NextInstance = 0x00000001

The following Registry Value was deleted:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\CLSID\{5B035261-40F9-11D1-AAEC-00805FC1270E}\InProcServer32]

(Default) = "C:\WINDOWS\system32\netcfgx.dll"

Other details

The following Host Name was requested from a host database:

wxtr812.com

The following HTTP URL was started reading:

http://wxtr812.com/SY4VHK-eedgRAeZm-1E61fJun1dK-U1fKQC?version=0

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