BKDR_TIDSERV.FC

October 08, 2012
 Analysis by: Michael Cabel
 PLATFORM:

Windows 98, ME, NT, 2000, XP, Server 2003

 OVERALL RISK RATING:
 DAMAGE POTENTIAL:
 DISTRIBUTION POTENTIAL:
 REPORTED INFECTION:

  • Threat Type: Backdoor

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This backdoor may arrive bundled with malware packages as a malware component.

It is injected into all running processes to remain memory resident.

It executes commands from a remote malicious user, effectively compromising the affected system.

It hides files, processes, and/or registry entries.

  TECHNICAL DETAILS

File Size:

85,504 bytes

File Type:

PE

Memory Resident:

Yes

Arrival Details

This backdoor may arrive bundled with malware packages as a malware component.

Installation

This backdoor is injected into all running processes to remain memory resident.

Autostart Technique

This backdoor registers itself as a system service to ensure its automatic execution at every system startup by adding the following registry entries:

HKEY_LOCAL_MACHINE\System\Currentcontrolset\
Services\{Malware File Name Without Extension}
Imagepath = {Malware Path and File Name}

Backdoor Routine

This backdoor executes the following commands from a remote malicious user:

  •  

Rootkit Capabilities

This backdoor hides files, processes, and/or registry entries.

  SOLUTION

Minimum Scan Engine:

8.900

Step 1

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.

Step 2

Scan your computer with your Trend Micro product and note files detected as BKDR_TIDSERV.FC

Step 3

Restart in Safe Mode

[ Learn More ]

Step 4

Delete this registry key

[ Learn More ]

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.

  • In HKEY_LOCAL_MACHINE\System\Currentcontrolset\Services\{Malware File Name Without Extension}
    • Imagepath = {Malware Path and File Name}

Step 5

Scan your computer with your Trend Micro product to delete files detected as BKDR_TIDSERV.FC. 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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