ThreatExpert Report: Generic.evx!bt, Backdoor:Win32/Plugx.A, Trojan.Win32.Spy

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Submission Summary:

Submission details:

Submission received: 18 September 2012, 15:25:45
Processing time: 7 min 53 sec
Submitted sample:

File MD5: 0xDCF68BFF00F5249B94B581EAE98DB461
File SHA-1: 0xC7168CEEF090DB21721D83F538FF1B746EC44D4F
Filesize: 189,952 bytes
Alias:

Generic.evx!bt [McAfee]
Backdoor:Win32/Plugx.A [Microsoft]
Trojan.Win32.Spy [Ikarus]

Summary of the findings:

What's been found	Severity Level
Produces outbound traffic.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%AllUsersProfile%\bug.log	238 bytes	MD5: 0xBAF35C9B6A4221EC23B135FCEE636E82 SHA-1: 0xAF364A8CA1DDF2BBE10A857DFC1A15D1438FD18C	(not available)
2	%AllUsersProfile%\Microsoft PA\SxS.exe [file and pathname of the sample #1]	189,952 bytes	MD5: 0xDCF68BFF00F5249B94B581EAE98DB461 SHA-1: 0xC7168CEEF090DB21721D83F538FF1B746EC44D4F	Generic.evx!bt [McAfee] Backdoor:Win32/Plugx.A [Microsoft] Trojan.Win32.Spy [Ikarus]

Note:

%AllUsersProfile% is a variable that specifies the all users' profile folder. By default, this is C:\Documents and Settings\All Users (Windows NT/2000/XP).

The following directory was created:

%AllUsersProfile%\Microsoft PA

Memory Modifications

There was a new process created in the system:

Process Name	Process Filename	Main Module Size
SxS.exe	%AllUsersProfile%\Microsoft PA\SxS.exe	204,800 bytes

There was a new service created in the system:

Service Name	Display Name	Status	Service Filename
SxS	SxS	"Stopped"	"%AllUsersProfile%\Microsoft PA\SxS.exe" 200 0

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SOFTWARE\Classes\FAST
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_SXS
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_SXS\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_SXS\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SxS
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SxS\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SxS\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SXS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SXS\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_SXS\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxS
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxS\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxS\Enum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\FAST]

CLSID = 46 00 38 00 36 00 34 00 41 00 44 00 30 00 45 00 35 00 34 00 32 00 38 00 44 00 44 00 38 00 34 00 00 00

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

*NewlyCreated* = 0x00000000

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

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

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

NextInstance = 0x00000001

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

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

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SxS\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\SxS]

Type = 0x00000010
Start = 0x00000002
ErrorControl = 0x00000001
ImagePath = ""%AllUsersProfile%\Microsoft PA\SxS.exe" 200 0"
DisplayName = "SxS"
ObjectName = "LocalSystem"
Description = "Windows SxS Services"

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

*NewlyCreated* = 0x00000000

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

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

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

NextInstance = 0x00000001

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

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

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxS\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\SxS]

Type = 0x00000010
Start = 0x00000002
ErrorControl = 0x00000001
ImagePath = ""%AllUsersProfile%\Microsoft PA\SxS.exe" 200 0"
DisplayName = "SxS"
ObjectName = "LocalSystem"
Description = "Windows SxS Services"

The following Registry Values were modified:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent]

(Default) =

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ServiceCurrent]

(Default) =

Other details

The following Host Name was requested from a host database:

192.5.5.241

There was registered attempt to establish connection with the remote host. The connection details are:

Remote Host	Port Number
192.5.5.241	12345

Outbound traffic (potentially malicious)

There was an outbound traffic produced on port 12345:

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