ThreatExpert Report: Mal/Behav-374, Backdoor:Win32/Hupigon.EC, Trojan.Win32.Sasfis

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Submission Summary:

Submission details:

Submission received: 24 September 2012, 02:12:32
Processing time: 7 min 39 sec
Submitted sample:

File MD5: 0xF6D4E01B3FC029017CF51F11DD9234F6
File SHA-1: 0x33BD17C75467B4D51408C88DC3C33DE2648E5C41
Filesize: 2,742,272 bytes
Alias:

Mal/Behav-374 [Sophos]
Backdoor:Win32/Hupigon.EC [Microsoft]
Trojan.Win32.Sasfis [Ikarus]

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%System%\drivers\oreans32.sys	33,824 bytes	MD5: 0xB99575D16F887883B821D372FF292C20 SHA-1: 0x661A3D82411FE8A6524E4BAD7FC5D098E3D33429	(not available)
2	[file and pathname of the sample #1]	2,742,272 bytes	MD5: 0xF6D4E01B3FC029017CF51F11DD9234F6 SHA-1: 0x33BD17C75467B4D51408C88DC3C33DE2648E5C41	Mal/Behav-374 [Sophos] Backdoor:Win32/Hupigon.EC [Microsoft] Trojan.Win32.Sasfis [Ikarus]

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).

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\oreans32
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\oreans32\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\oreans32\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\oreans32
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\oreans32\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\oreans32\Enum

The newly created Registry Values are:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "oreans32"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32\0000]

Service = "oreans32"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "oreans32"

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_OREANS32]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\oreans32\Enum]

0 = "Root\LEGACY_OREANS32\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\oreans32\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\oreans32]

Type = 0x00000001
Start = 0x00000001
ErrorControl = 0x00000001
ImagePath = "%System%\drivers\oreans32.sys"
DisplayName = "oreans32"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32\0000\Control]

*NewlyCreated* = 0x00000000
ActiveService = "oreans32"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32\0000]

Service = "oreans32"
Legacy = 0x00000001
ConfigFlags = 0x00000000
Class = "LegacyDriver"
ClassGUID = "{8ECC055D-047F-11D1-A537-0000F8753ED1}"
DeviceDesc = "oreans32"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_OREANS32]

NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\oreans32\Enum]

0 = "Root\LEGACY_OREANS32\0000"
Count = 0x00000001
NextInstance = 0x00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\oreans32\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\oreans32]

Type = 0x00000001
Start = 0x00000001
ErrorControl = 0x00000001
ImagePath = "%System%\drivers\oreans32.sys"
DisplayName = "oreans32"

Other details

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

China

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