Analysis by: Sabrina Lei Sioting
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

It executes then deletes itself afterward.

  TECHNICAL DETAILS

File Size: 844,288 bytes
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 12 Nov 2011

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Installation

This Trojan executes then deletes itself afterward.

Dropping Routine

This Trojan drops the following files:

  • %System Root%\Documents and Settings\All Users\Application Data\privacy.exe
  • %System Root%\Documents and Settings\All Users\Desktop\Privacy Protection.lnk

(Note: %System Root% is the root folder, which is usually C:\. It is also where the operating system is located.)

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}fs.com/logo/go.php?id=111
  • http://{BLOCKED}dreams.com/images/img.php?id=111

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 8.568.02
FIRST VSAPI PATTERN DATE: 12 Nov 2011
VSAPI OPR PATTERN File: 8.563.00
VSAPI OPR PATTERN Date: 12 Nov 2011

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

Search and delete these files

[ Learn More ]
There may be some component 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.
  • %System Root%\Documents and Settings\All Users\Application Data\privacy.exe
  • %System Root%\Documents and Settings\All Users\Desktop\Privacy Protection.lnk

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_JORIK.BLO. 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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