ThreatExpert Report

Submission Summary:

Submission details:

Submission received: 28 July 2009, 15:40:44
Processing time: 6 min 26 sec
Submitted sample:

File MD5: 0xCFC6825D9ACD35E19E0D9D7A76F41185
File SHA-1: 0x2C53E0E9EE47BF213FCE83B6779754A742981525
Filesize: 177,664 bytes

Summary of the findings:

What's been found	Severity Level
Downloads/requests other files from Internet.

Technical Details:

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash
1	%System%\drivers\srhbjk.sys	79,232 bytes	MD5: 0xF2AB868031D072566E2932629E8C9402 SHA-1: 0xD2101CCDB5D6BC587CA53A348AC1A09A9ED417FE
2	%System%\drivers\str.sys	0 bytes	MD5: 0xD41D8CD98F00B204E9800998ECF8427E SHA-1: 0xDA39A3EE5E6B4B0D3255BFEF95601890AFD80709
3	[file and pathname of the sample #1]	177,664 bytes	MD5: 0xCFC6825D9ACD35E19E0D9D7A76F41185 SHA-1: 0x2C53E0E9EE47BF213FCE83B6779754A742981525

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).

Memory Modifications

There was a new memory page created in the address space of the system process(es):

Process Name	Process Filename	Allocated Size
svchost.exe	%System%\svchost.exe	40,960 bytes

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

Driver Name	Driver Filename
ttjdhkukdnsu	%System%\drivers\srhbjk.sys

Registry Modifications

The following Registry Keys were created:

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TTJDHKUKDNSU
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TTJDHKUKDNSU\0000
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_TTJDHKUKDNSU\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ttjdhkukdnsu
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ttjdhkukdnsu\Security
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ttjdhkukdnsu\Enum
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TTJDHKUKDNSU
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TTJDHKUKDNSU\0000
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\Root\LEGACY_TTJDHKUKDNSU\0000\Control
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ttjdhkukdnsu
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ttjdhkukdnsu\Security
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ttjdhkukdnsu\Enum

The newly created Registry Values are:

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

*NewlyCreated* = 0x00000000
ActiveService = "ttjdhkukdnsu"

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

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

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

NextInstance = 0x00000001

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

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

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\ttjdhkukdnsu\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\ttjdhkukdnsu]

Type = 0x00000001
Start = 0x00000002
ErrorControl = 0x00000000
ImagePath = "%System%\drivers\srhbjk.sys"
DisplayName = "ttjdhkukdnsu"
RulesData = 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 78 00 5C 00 52 00 45 00 47 00 49 00 53 00 54 00 52 00 59 00 5C 00 4D 00 41 00 43 00 48 00 49 00 4E 00 45 00 5C 00 53 00 59 00 53 00 54 00 45 00 4D 00 5C 00 43 00 6F 00 6E 00 74 0
krnl_sleepfreq = 0F 00 00 00
krnl_servers_list = 68 74 74 70 00 00 00 00 00 00 00 00 00 00 00 68 74 74 70 3A 2F 2F 64 69 61 73 68 6B 61 2E 63 6F 6D 2F 67 65 74 32 2F 67 65 74 2F 67 65 74 63 66 67 2E 70 68 70 00 68 74 74 70 00 00 00 00 00 00 00 00 00 00 00 68 74 74 70 3A 2F 2F 64 69 61 73 68 6B 61 2

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

*NewlyCreated* = 0x00000000
ActiveService = "ttjdhkukdnsu"

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

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

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

NextInstance = 0x00000001

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

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

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\ttjdhkukdnsu\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\ttjdhkukdnsu]

Type = 0x00000001
Start = 0x00000002
ErrorControl = 0x00000000
ImagePath = "%System%\drivers\srhbjk.sys"
DisplayName = "ttjdhkukdnsu"
RulesData = 03 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 78 00 5C 00 52 00 45 00 47 00 49 00 53 00 54 00 52 00 59 00 5C 00 4D 00 41 00 43 00 48 00 49 00 4E 00 45 00 5C 00 53 00 59 00 53 00 54 00 45 00 4D 00 5C 00 43 00 6F 00 6E 00 74 0
krnl_sleepfreq = 0F 00 00 00
krnl_servers_list = 68 74 74 70 00 00 00 00 00 00 00 00 00 00 00 68 74 74 70 3A 2F 2F 64 69 61 73 68 6B 61 2E 63 6F 6D 2F 67 65 74 32 2F 67 65 74 2F 67 65 74 63 66 67 2E 70 68 70 00 68 74 74 70 00 00 00 00 00 00 00 00 00 00 00 68 74 74 70 3A 2F 2F 64 69 61 73 68 6B 61 2

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]

ProxyEnable = 0x00000000

The following Registry Value was modified:

[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders]

Cookies = "%System%\config\systemprofile\Cookies"
Cache = "%System%\config\systemprofile\Local Settings\Temporary Internet Files"
History = "%System%\config\systemprofile\Local Settings\History"

Other details

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

Russian Federation

The following Internet Connections were established:

Server Name	Server Port	Connect as User	Connection Password
diashka.com	80	(null)	(null)
diashka.ru	80	(null)	(null)

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