JS_EXPLOIT.SM

October 09, 2012
 Analysis by: Erika Bianca Mendoza
 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

This is Trend Micro's detection for HTML files inserted with malicious JavaScripts that could lead to the download of other possibly malicious files. It may contain hidden iframe tags to link to other websites.

Once users visit a compromised site, they could be redirected to certain websites. Users will again be redirected to websites that display advertisements.

This Trojan may be hosted on a website and run when a user accesses the said website.

  TECHNICAL DETAILS

File Size:

54,954 bytes

File Type:

HTML, HTM

Initial Samples Received Date:

12 May 2011

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan may be hosted on a website and run when a user accesses the said website.

NOTES:

Other Details
This is Trend Micro's detection for HTML files inserted with malicious JavaScripts that could lead to the download of other possibly malicious files. It may contain hidden iframe tags to link to other websites. For instance, once users visit a compromised site, they could be redirected to any of the following sites:

  • http://{BLOCKED}ftware.in/ts/in.cgi?346
  • http://www.{BLOCKED}ombs.org/index.php
  • http://{BLOCKED}qir.net/in.cgi?5
  • http://{BLOCKED}amer.org/ts/in.cgi?346
  • http://www.{BLOCKED}signonline.com/vi/index.html
  • http://e.{BLOCKED}zi.biz/e/ads.php?b=3063
  • http://{BLOCKED}miga.info/xsys5/index.php
  • http://{BLOCKED}otnet.com/nnews/index.php
  • http://{BLOCKED}s-antivirus-2008.com/wp.js
  • http://{BLOCKED}stfc.com/images/blocks/se/umax.js
  • http://{BLOCKED}af.biz/pop_mp9.js
  • http://{BLOCKED}af.biz/pop_mp9.cs
Users will again be redirected to any of the following websites that display advertisements:
  • http://{BLOCKED}rclick.com/stat/counter.php
  • http://{BLOCKED}af.biz/js9.php
  • http://{BLOCKED}hportal.information.com/?o_id=107961&domainname={BLOCKED}dotnet.com
  • http://{BLOCKED}hportal.information.com/?o_id=65014&domainname={BLOCKED}miga.info
  • http://{BLOCKED}hportal.information.com/?o_id=65014&domainname={BLOCKED}signonline.com

  SOLUTION

Minimum Scan Engine:

8.900

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

Close all opened browser windows

Step 3

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