HTML_HTAPORN

October 09, 2012
 Analysis by: Christopher Daniel So
 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

This Trojan may be dropped by other malware. It may be unknowingly downloaded by a user while visiting malicious websites. It executes when a user accesses certain websites where it is hosted.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

HTA

Initial Samples Received Date:

15 Mar 2011

Arrival Details

This Trojan may be dropped by other malware.

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

It executes when a user accesses certain websites where it is hosted.

NOTES:

This Trojan connects to the following websites that contain pornographic content:

  • http://{BLOCKED}poo.net/user/h_check.php
  • http://{BLOCKED}poo.net/user/h_info_ajax.php
  • http://www.{BLOCKED}vies.com/regist1.php?s=1&d=04&f=01&p=43066139
  • http://www.{BLOCKED}vies.com/css/regist2.css
  • http://www.{BLOCKED}vies.com/css/regist2/close_button.jpg
  • http://www.{BLOCKED}vies.com/css/regist2/harituki.jpg
  • http://{BLOCKED}1.camel-movies.com/04/01.wmv
  • http://www.{BLOCKED}vies.com/regist1.php?s=1&d=04&f=01&p=43066139 http://{BLOCKED}1.sloughi-morocco.info/movie54/27.wmv
  • http://www.{BLOCKED}i-morocco.info/Scripts/AC_RunActiveContent.js
  • http://www.{BLOCKED}i-morocco.info/css/regist1.css
  • http://www.{BLOCKED}i-morocco.info/img/regist123/Xbt.jpg
  • http://www.{BLOCKED}i-morocco.info/img/regist123/title_bar.jpg
  • http://www.{BLOCKED}i-morocco.info/regist1.php?s=1&d=54&f=27&p=43722105
  • http://{BLOCKED}fest.galhimawarimove.net
  • http://{BLOCKED}fest.galhimawarimove.net
  • http://{BLOCKED}n.galhimawarimove.net
  • http://{BLOCKED}pper.galhimawarimove.net
  • http://www.{BLOCKED}01host.com
  • http://{BLOCKED}kix.com/member/delete.php

This description is based on a compiled analysis of several variants of HTML_HTAPORN. Note that specific data such as file names and registry values may vary for each variant.

  SOLUTION

Minimum Scan Engine:

9.200

Trend customers:

    Keep your pattern and scan engine files updated. Trend Micro antivirus software can clean or remove most types of computer threats. Malware, though, such as Trojans, scripts, overwriting viruses and joke programs which are identified as uncleanable, should simply be deleted.

All Internet users:

    1. Use HouseCall - the Trend Micro online threat scanner to check for malware that may already be on your PC.
    2. Catch malware/grayware before they affect your PC or network. Secure your Web world with Trend Micro products that offer the best anti-threat and content security solutions for home users, corporate users, and ISPs. Go here for more information on Trend Micro products that fit your needs.


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