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This backdoor may be dropped by other malware.
It executes commands from a remote malicious user, effectively compromising the affected system.
It deletes itself after execution.
This backdoor may be dropped by the following malware:
This backdoor drops the following files:
(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)
It creates the following folders:
This backdoor registers its dropped component as a system service to ensure its automatic execution at every system startup. It does this by creating the following registry entries:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvDescription = "SxSv"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvDisplayName = "SxSv"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvErrorControl = "0"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvImagePath = ""%System Root%\Documents and Settings\All Users\SxSv\rc.exe" 200 0"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvObjectName = "LocalSystem"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvStart = "2"
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SxSvType = "110"
Other System Modifications
This backdoor adds the following registry keys:
This backdoor executes the following commands from a remote malicious user:
This backdoor drops the following file(s), which it uses for its keylogging routine:
This backdoor connects to the following possibly malicious URL:
This backdoor uses the normal file RC.EXE as a component to reconstruct itself after installation using its component files TROJ_PLUGX.SME and TROJ_PLUGX.AF.
For Windows XP and Windows Server 2003 users, before doing any scans, please make sure you disable System Restore to allow full scanning of your computer.
Scan your computer with your Trend Micro product and note files detected as BKDR_PLUGX.AF
Remove malware/grayware files that dropped/downloaded BKDR_PLUGX.AF
Remove malware/grayware files dropped/downloaded by BKDR_PLUGX.AF
Restart in Safe Mode
To restart in Safe Mode:
• For Windows 2000 users
• For Windows XP users
• For Windows Server 2003 users
Delete this registry key
Important: Editing the Windows Registry incorrectly can lead to irreversible system malfunction. Please do this step only if you know how or you can ask assistance from your system administrator. Else, check this Microsoft article first before modifying your computer's registry.
To delete the registry key this malware/grayware created:
Search and delete these folders
To delete folders created that this malware/grayware created:
Search and delete these files
To delete malware/grayware component files:
Restart in normal mode and scan your computer with your Trend Micro product for files detected as BKDR_PLUGX.AF. If the detected files have already been cleaned, deleted, or quarantined by your Trend Micro product, no further step is required. You may opt to simply delete the quarantined files. Please check this Knowledge Base page for more information.
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