ThreatExpert Report: Trojan.Dropper, Trojan.Win32.Agent.cxbz, Mal/Behav-112, Trojan.WinNT.NTRootkit..

Submission Summary:

Submission details:

Submission received: 5 October 2009, 14:42:37
Processing time: 5 min 58 sec
Submitted sample:

File MD5: 0x2600CFA5A9C32DADF92D670E787C2E33
File SHA-1: 0x1E944B327F873E1ED2473E8251D427EF47A8CDC2
Filesize: 75,264 bytes
Alias:

Summary of the findings:

What's been found	Severity Level
Stealth-mode characteristics common to Rootkits.
Downloads/requests other files from Internet.
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
Trojan-PWS.Lineage	Trojan.PWSteal.Lineage is a group of password stealing Trojans that attempt to steal passwords associated with the game called "Lineage" or "Lineage II", and send it to the creator of the Trojan.

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 code with the rootkit-specific techniques designed to hide the software presence in the system

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Temp%\112791303.log	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709	(not available)
2	%Windir%\fybdylea.exe	61,440 bytes	MD5: 0x517631D14A3D2A982979B161BE278BDE SHA-1: 0xBBBB1889CD78BF23CB6DBB848A0EEA1069C9649A	Trojan Horse [Symantec] Mal/Generic-A [Sophos] Trojan.Agent [Ikarus] packed with PE_Patch.UPX [Kaspersky Lab]
3	%System%\drivers\jhqnciwx.sys	85,376 bytes	MD5: 0xA68B50C95B2DB24FACEB7ACDBC47F43E SHA-1: 0x26999B4D811BB175435AC81864A7F4EA457D2A19	Trojan Horse [Symantec] Rootkit.Win32.Agent.sde [Kaspersky Lab] Generic.dx!feu [McAfee] Mal/Generic-A [Sophos] Trojan:WinNT/NTRootkit.H [Microsoft] Backdoor.Win32.Gagony [Ikarus]
4	%System%\dsetup.bat	110 bytes	MD5: 0x5ECEE4EBF6461B21259C89466DCCD8A7 SHA-1: 0x3A78C9542406FC0951858EFE69EB4E339C2AF89F	(not available)
5	[file and pathname of the sample #1]	75,264 bytes	MD5: 0x2600CFA5A9C32DADF92D670E787C2E33 SHA-1: 0x1E944B327F873E1ED2473E8251D427EF47A8CDC2	Trojan.Dropper [Symantec] Trojan.Win32.Agent.cxbz [Kaspersky Lab] Mal/Behav-112 [Sophos] Trojan.WinNT.NTRootkit [Ikarus] Win-Trojan/Agent.75264.DP [AhnLab]

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).
%Windir% is a variable that refers to the Windows installation folder. By default, this is C:\Windows or C:\Winnt.
%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 were new processes created in the system:

Process Name	Process Filename	Main Module Size
fybdylea.exe	%Windir%\fybdylea.exe	151,552 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	118,784 bytes

Attention! The following process was intentionally hidden from the user:

Process Name	Main Module Size
fybdylea.exe	151,552 bytes

There was a new kernel-mode driver installed in the system:

Driver Name	Driver Filename
jhqnciwx.sys	%System%\drivers\jhqnciwx.sys

Attention! The following kernel-mode system service functions were hooked:

System Call	Driver name	Driver Filename
NtEnumerateKey	jhqnciwx.sys	%System%\drivers\jhqnciwx.sys
NtEnumerateValueKey	jhqnciwx.sys	%System%\drivers\jhqnciwx.sys
NtQueryDirectoryFile	jhqnciwx.sys	%System%\drivers\jhqnciwx.sys
NtQuerySystemInformation	jhqnciwx.sys	%System%\drivers\jhqnciwx.sys

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_FYBDYLEA
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_FYBDYLEA\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_FYBDYLEA\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_FYBDYLEA
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_FYBDYLEA\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_FYBDYLEA\0000\Control
HKEY_CURRENT_USER\Software\Microsoft\Windows Script
HKEY_CURRENT_USER\Software\Microsoft\Windows Script\Settings

Attention! There were hidden Registry Keys created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\fybdylea
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\fybdylea\Security

The newly created Registry Values are:

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

*NewlyCreated* = 0x00000000
ActiveService = "fybdylea"

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

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

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

NextInstance = 0x00000001

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

*NewlyCreated* = 0x00000000
ActiveService = "fybdylea"

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

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

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

NextInstance = 0x00000001

[HKEY_CURRENT_USER\Software\Microsoft\Windows Script\Settings]

JITDebug = 0x00000000

Attention! The newly created hidden Registry Values are:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\fybdylea\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\fybdylea]

Type = 0x00000001
Start = 0x00000000
ErrorControl = 0x00000000
ImagePath = 73 79 73 74 65 6D 33 32 5C 64 72 69 76 65 72 73 5C 6A 68 71 6E 63 69 77 78 2E 73 79 73 00 3F 3F 3F 3F 3A 78 3F 3F 3F 3F 00 00 3A 3A 3F 3F 00 00 04 00 02 00 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F 3F D8 3F 3F 3F 01 0
DisplayName = "fybdylea"
Group = "System Bus Extender"

Other details

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

China

The following port was open in the system:

Port	Protocol	Process
1034	TCP	fybdylea.exe (%Windir%\fybdylea.exe)

The following Internet Connection was established:

Server Name	Server Port	Connect as User	Connection Password
xya.pas8888.cn	80	(null)	(null)

The following HTTP URL was started reading:

http://xya.pas8888.cn/count.php?fid=111r&cid=000000000000&ver=306&tid=0&sn=255651721

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