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JS_SPAMVIR.SMD

October 09, 2012
 Analysis by: Roland Marco Dela Paz
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet


This malware connects to a site which redirects to a fake video streaming page. It also attempts to execute files, which are detected as JS_SPAMVIR.SMDA, on the user's browser. As a result, malicious routines of the executed files are exhibited on the affected system.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

30 Apr 2012

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan may be downloaded from the following remote sites:

  • http://{BLOCKED}cripts.it/divx2/youtube.crx
  • http://{BLOCKED}cripts.it/divx2/youtube.xpi
  • http://{BLOCKED}cripts.it/divx2/script.js
  • http://{BLOCKED}cripts.it/divx2/extra.js

NOTES:

This malware connects to the following site which redirects to a fake video streaming page:

  • http://{BLOCKED}cripts.it/divx2/watch.php?extra

It also attempts to execute the following files, which are detected as JS_SPAMVIR.SMDA, on the user's browser:

  • http://{BLOCKED}cripts.it/divx2/function.js
  • http://{BLOCKED}cripts.it/divx2/page.js

As a result, malicious routines of the executed files are exhibited on the affected system.

  SOLUTION

Minimum Scan Engine:

9.200

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/grayware files dropped/downloaded by JS_SPAMVIR.SMD

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to delete files detected as JS_SPAMVIR.SMD. 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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