Analysis by: Kathleen Notario
 PLATFORM:

Windows 2000, XP, Server 2003

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

  • Threat Type: Worm

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This worm deletes itself after execution.

  TECHNICAL DETAILS

File Size: 103,936 bytes
File Type: PE
Memory Resident: No
Initial Samples Received Date: 07 Dec 2010

Installation

This worm drops the following copies of itself into the affected system:

  • %Windows%\hippy15.exe

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

Dropping Routine

This worm drops the following files:

  • %Windows%\hpm2.dat

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

Other Details

This worm deletes itself after execution.

  SOLUTION

Minimum Scan Engine: 8.900
VSAPI PATTERN File: 6.582.01
VSAPI PATTERN Date: 28 Oct 2009
VSAPI PATTERN Date: 10/28/2009 12:00:00 AM

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Search and delete this file

[ Learn More ]
There may be some files that are hidden. Please make sure you check the Search Hidden Files and Folders checkbox in the "More advanced options" option to include all hidden files and folders in the search result. %Windows%\hpm2.dat

Step 3

Scan your computer with your Trend Micro product to delete files detected as WORM_KOOBFCE.SM. 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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