ThreatExpert Report: Backdoor.Win32.PcClient.eoai, Gen.Trojan.Heur

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Submission Summary:

Submission details:

Submission received: 11 September 2012, 16:08:54
Processing time: 10 min 52 sec
Submitted sample:

File MD5: 0x4F345E3FFBC9C842569FBD44BBC69E19
File SHA-1: 0x64C3C6E103C00E4EC9E846BCFCDBB4542B0780C8
Filesize: 1,160,723 bytes
Alias:

Backdoor.Win32.PcClient.eoai [Kaspersky Lab]
Gen.Trojan.Heur [Ikarus]

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.
Contains characteristics of an identified security risk.

Technical Details:

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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 file was created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	[file and pathname of the sample #1]	1,160,723 bytes	MD5: 0x4F345E3FFBC9C842569FBD44BBC69E19 SHA-1: 0x64C3C6E103C00E4EC9E846BCFCDBB4542B0780C8	Backdoor.Win32.PcClient.eoai [Kaspersky Lab] Gen.Trojan.Heur [Ikarus]

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]	4,096 bytes

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf\Enum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "ialdnwxf"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF\0000]

Service = "ialdnwxf"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "ialdnwxf"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_IALDNWXF]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf\Enum]

0 = "Root\LEGACY_IALDNWXF\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf\Security]

Security = 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 0

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ialdnwxf]

Type = 0x00000001
Start = 0x00000003
ErrorControl = 0x00000000
ImagePath = "%System%\superec.ProcessMemory.sys"
DisplayName = "ialdnwxf"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "ialdnwxf"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF\0000]

Service = "ialdnwxf"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "ialdnwxf"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_IALDNWXF]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf\Enum]

0 = "Root\LEGACY_IALDNWXF\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf\Security]

Security = 01 00 14 80 90 00 00 00 9C 00 00 00 14 00 00 00 30 00 00 00 02 00 1C 00 01 00 00 00 02 80 14 00 FF 01 0F 00 01 01 00 00 00 00 00 01 00 00 00 00 02 00 60 00 04 00 00 00 00 00 14 00 FD 01 02 00 01 01 00 00 00 00 00 05 12 00 00 00 00 00 18 00 FF 01 0F 0

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ialdnwxf]

Type = 0x00000001
Start = 0x00000003
ErrorControl = 0x00000000
ImagePath = "%System%\superec.ProcessMemory.sys"
DisplayName = "ialdnwxf"

Other details

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

China

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

_!SHMSFTHISTORY!_

The following port was open in the system:

Port	Protocol	Process
1039	UDP	[file and pathname of the sample #1]

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
www.8utv.com	80	(null)	(null)
www.8ywg.com	80	(null)	(null)

The following GET requests were made:

index.html
index.jpg

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