TROJ_GIBON.D

 Analysis by: Christopher Daniel So

 ALIASES:

Trojan:Win32/Meredrop (Microsoft), W32/Trojan2.LGGW (FProt)

 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW


This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size:

94,208 bytes

File Type:

PE

Memory Resident:

No

Initial Samples Received Date:

21 Oct 2009

Payload:

Drops files

Arrival Details

This Trojan may be dropped by the following malware:

  • BKDR_GIBON.SMA

Other System Modifications

This Trojan adds the following registry entries as part of its installation routine:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\CurrentVersion\Run
WinDLL (service.exe) = "service.exe"

Dropping Routine

This Trojan drops the following files:

  • %Windows%\service.exe - detected as BKDR_GIBON.D

(Note: %Windows% is the Windows folder, which is usually C:\Windows or C:\WINNT.)

  SOLUTION

Minimum Scan Engine:

8.900

VSAPI OPR PATTERN File:

6.827.00

VSAPI OPR PATTERN Date:

05 Feb 2010

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

Remove malware files dropped/downloaded by TROJ_GIBON.D

    BKDR_GIBON.D

Step 3

Delete this registry value

[ 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\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    • WinDLL (service.exe)=service.exe

Step 4

Scan your computer with your Trend Micro product to delete files detected as TROJ_GIBON.D. 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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