ThreatExpert Report: Adware.Purityscan, Backdoor.Win32.Hupigon.girl, Backdoor.Hupigon.EQZD..

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Submission Summary:

Submission details:

Submission received: 4 May 2010, 18:32:12
Processing time: 7 min 38 sec
Submitted sample:

File MD5: 0xDFF4CD4D31989733A9814E206DD08F8D
File SHA-1: 0xCA2185AFA93134EA43A2317E8C2F98B85A2DA18D
Filesize: 467,639 bytes
Alias:

Adware.Purityscan [PCTools]
Backdoor.Win32.Hupigon.girl [Kaspersky Lab]

Summary of the findings:

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

Technical Details:

Possible Security Risk

Attention! Characteristics of the following security risks were 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.
Backdoor.Hupigon.EQZD	Backdoor.Hupigon.EQZD is a backdoor trojan which shuts down latest Kaspersky products via program bugs, it also allows unauthorized remote access into the infected computer to perform other malicious activities.
Backdoor.Hupigon	Backdoor.Hupigon is a backdoor trojan which allows unauthorized remote access into the infected computer to perform other malicious activities.

Attention! The following threat category was identified:

Threat Category	Description
	A malicious backdoor trojan that runs in the background and allows remote access to the compromised system

File System Modifications

The following files were created in the system:

#	Filename(s)	File Size	File Hash	Alias
1	%Windir%\RemoteAbc.exe	699,392 bytes	MD5: 0x757249AA972C0E4CACD82B6986CEB791 SHA-1: 0x435CD9B8586E96E043F7142A8CA0FB583821E71F	Backdoor.Hupigon.EQZD [PCTools] Backdoor.Trojan [Symantec] Backdoor.Win32.Hupigon.girl [Kaspersky Lab] Downloader-ZL [McAfee] Mal/Generic-A [Sophos] VirTool:Win32/DelfInject.gen!X [Microsoft] Win-Trojan/Hupigon.699392.BF [AhnLab]
2	%System%\1.jpg	56,537 bytes	MD5: 0x41D072444DAC90ECDBD102CF5132F6C6 SHA-1: 0xA6334CFC8AE2CAF87E09F8FCCC2451C60A7E272E	(not available)
3	[file and pathname of the sample #1]	467,639 bytes	MD5: 0xDFF4CD4D31989733A9814E206DD08F8D SHA-1: 0xCA2185AFA93134EA43A2317E8C2F98B85A2DA18D	Adware.Purityscan [PCTools] Backdoor.Win32.Hupigon.girl [Kaspersky Lab]

Notes:

%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
RemoteAbc.exe	%Windir%\remoteabc.exe	729,600 bytes
[filename of the sample #1]	[file and pathname of the sample #1]	143,360 bytes

There was a new service created in the system:

Service Name	Display Name	Status	Service Filename
Remote_Server_2008	Remote 2008	"Running"	%Windir%\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 = "%Windir%\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 = "%Windir%\RemoteAbc.exe"
DisplayName = "Remote 2008"
ObjectName = "LocalSystem"
Description = "Remote Control!"

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

ProxyEnable = 0x00000000

The following Registry Values were modified:

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\ServiceCurrent]

(Default) =

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ServiceCurrent]

(Default) =

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

Cookies =
History =

Other details

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

China

The following ports were open in the system:

Port	Protocol	Process
1052	TCP	RemoteAbc.exe (%Windir%\RemoteAbc.exe)
1054	TCP	RemoteAbc.exe (%Windir%\RemoteAbc.exe)
1055	TCP	RemoteAbc.exe (%Windir%\RemoteAbc.exe)

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