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JS_REDIR.DCL

July 26, 2016
 Analysis by: Cris Nowell Pantanilla
 PLATFORM:

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

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW


This Trojan may be unknowingly downloaded by a user while visiting malicious websites.

This is the Trend Micro detection for files that contain a malicious script.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

Script

Memory Resident:

Yes

Initial Samples Received Date:

24 May 2010

Arrival Details

This Trojan may be unknowingly downloaded by a user while visiting malicious websites.

Other Details

This is the Trend Micro detection for files that contain a malicious script.

It connects to the following possibly malicious URL:

  • http://cc.{blocked}dd.net/1.js

It does the following:

  • This script redirects the user to the said URL which contains advertisements that may be displayed on the user's browser.

  SOLUTION

Minimum Scan Engine:

8.900

FIRST VSAPI PATTERN FILE:

7.106.01

FIRST VSAPI PATTERN DATE:

16 Apr 2010

VSAPI OPR PATTERN File:

7.107.00

VSAPI OPR PATTERN Date:

17 Apr 2010

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

Scan your computer with your Trend Micro product to clean files detected as JS_REDIR.DCL. 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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