ThreatExpert Report: New Malware.ix, Mal/Behav-058, VirTool:Win32/DelfInject.gen!X

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Submission Summary:

Submission details:

Submission received: 21 March 2009, 19:21:45
Processing time: 5 min 42 sec
Submitted sample:

File MD5: 0x8D87D8E52F16DD0C3D978D6C19427D5C
File SHA-1: 0x935A924B87FF045717AF01C9E335A89537AEA625
Filesize: 700,416 bytes
Alias:

New Malware.ix [McAfee]
Mal/Behav-058 [Sophos]
VirTool:Win32/DelfInject.gen!X [Microsoft]

Summary of the findings:

What's been found	Severity Level
Produces outbound traffic.
Contains characteristics of an identified security risk.

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risk was identified in the system:

Security Risk	Description
Backdoor.Graybird.HF	Backdoor.GrayBird.HF is a backdoor trojan which places itself in the system folder and allows attackers to gain access and control of the infected system.

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\EJTFFV.bat	114 bytes	MD5: 0x284E47A87715BCA3B029A9190E586EC4 SHA-1: 0x7C7AF208F6EA015759F1A1812D78EB3505E78B79	(not available)
2	%ProgramFiles%\R_Server\RemoteAbc.exe [file and pathname of the sample #1]	700,416 bytes	MD5: 0x8D87D8E52F16DD0C3D978D6C19427D5C SHA-1: 0x935A924B87FF045717AF01C9E335A89537AEA625	New Malware.ix [McAfee] Mal/Behav-058 [Sophos] VirTool:Win32/DelfInject.gen!X [Microsoft]

Notes:

%Temp% is a variable that refers to the temporary folder in the short path form. By default, this is C:\Documents and Settings\[UserName]\Local Settings\Temp\ (Windows NT/2000/XP).
%ProgramFiles% is a variable that refers to the Program Files folder. A typical path is C:\Program Files.

The following directory was created:

%ProgramFiles%\R_Server

Memory Modifications

There were new processes created in the system:

Process Name	Process Filename	Main Module Size
RemoteAbc.exe	%ProgramFiles%\R_Server\RemoteAbc.exe	737,280 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	737,280 bytes

There was a new service created in the system:

Service Name	Display Name	Status	Service Filename
Remote_Server_2008	Remote 2008	"Stopped"	%ProgramFiles%\R_Server\RemoteAbc.exe

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Remote_Server_2008
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Remote_Server_2008\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Remote_Server_2008\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Remote_Server_2008
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Remote_Server_2008\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Remote_Server_2008\Enum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "Remote_Server_2008"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000]

Service = "Remote_Server_2008"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "Remote 2008"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_REMOTE_SERVER_2008]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Remote_Server_2008\Enum]

0 = "Root\LEGACY_REMOTE_SERVER_2008\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Remote_Server_2008\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\Remote_Server_2008]

Type = 0x00000110
Start = 0x00000002
ErrorControl = 0x00000000
ImagePath = "%ProgramFiles%\R_Server\RemoteAbc.exe"
DisplayName = "Remote 2008"
ObjectName = "LocalSystem"
Description = "Remote Control!"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "Remote_Server_2008"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008\0000]

Service = "Remote_Server_2008"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "Remote 2008"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_REMOTE_SERVER_2008]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Remote_Server_2008\Enum]

0 = "Root\LEGACY_REMOTE_SERVER_2008\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Remote_Server_2008\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\Remote_Server_2008]

Type = 0x00000110
Start = 0x00000002
ErrorControl = 0x00000000
ImagePath = "%ProgramFiles%\R_Server\RemoteAbc.exe"
DisplayName = "Remote 2008"
ObjectName = "LocalSystem"
Description = "Remote Control!"

The following Registry Values were modified:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent]

(Default) = 0x0000000C

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ServiceCurrent]

(Default) = 0x0000000C

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 objects were created:

VT@INPIYBMIEMAOMCOBDBE@WBSBEAPNL
eed3bd3a-a1ad-4e99-987b-d7cb3fcfa7f0
PPKMSYEF

The following Host Name was requested from a host database:

42759.rhelper.com

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

Remote Host	Port Number
42759.rhelper.com	2009

Outbound traffic (potentially malicious)

There was an outbound traffic produced on port 2009:

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