Analysis by: Cris Nowell Pantanilla
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel: Dropped by other malware, Downloaded from the Internet

This Trojan is responsible for sending information about the infection back to its server.

This Trojan may be dropped by other malware.

  TECHNICAL DETAILS

File Size: Varies
File Type: EXE
Memory Resident: No
Initial Samples Received Date: 16 Aug 2012
Payload: Connects to URLs/IPs

Arrival Details

This Trojan may be dropped by the following malware:

  • WORM_DISTTRACK.A

NOTES:

This Trojan is responsible for sending information about the infection back to the server http://{BLOCKED}.{BLOCKED}.252.19/ajax_modal/modal/data.asp?mydata={FILES}&uid={IP Address}&state={INFECTION ID}.

{FILES} is the number of files that is infected by the malware. This is taken from the file %Windows%\inf\netfb318.pnf, which is created by the wiper component TROJ_WIPMBR.A.

  SOLUTION

Minimum Scan Engine: 9.200
FIRST VSAPI PATTERN FILE: 9.328.04
FIRST VSAPI PATTERN DATE: 16 Aug 2012

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 the malware/grayware file that dropped/downloaded TROJ_DISTTRACK.A

Step 3

Scan your computer with your Trend Micro product to delete files detected as TROJ_DISTTRACK.A. 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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