Analysis by: Ryan Angelo Certeza
 PLATFORM:

Windows 2000, Windows XP, Windows Server 2003

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites. It may be hosted on a website and run when a user accesses the said website.

This is the Trend Micro detection for files that contain malicious IFRAME tags.

  TECHNICAL DETAILS

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

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

Other Details

This is the Trend Micro detection for files that contain malicious IFRAME tags.

NOTES:
This Trojan inserts IFRAME code in compromised webpages to redirect users to the following possibly malicious URLs:

  • http://{BLOCKED}mvhk.com/dl/adv542.php
  • http://{BLOCKED}6d.com/thread-1187-1-1.html
  • http://{BLOCKED}cliick.co.cc/forum.php?tp=675eafec431b1f72
  • http://www.{BLOCKED}1.com/test.htm
  • http://{BLOCKED}.{BLOCKED}.148.134/Home/index.php
  • http://www.{BLOCKED}Wk.cn/msdm/index.htm
  • http://www.{BLOCKED}S.COM/goto/mm.Htm
  • http://www.{BLOCKED}53.cn/index.htm
  • http://www.{BLOCKED}1983.com/index.htm
  • http://{BLOCKED}nnavi.info/index.html
  • http://{BLOCKED}dtiserv2.com/Click/1-290-124660
  • http://{BLOCKED}6.{BLOCKED}2.250.53/Home/index.php
  • http://{BLOCKED}1.dtiblog.com/

The sites mentioned may contain adult-related content.

However, as of this writing, the said sites are inaccessible.

Once a user visits an affected Web page, this HTML script launches a hidden IFRAME that connects to a malicious URL.

This description is based is a compiled analysis of several variants of HTML_IFRAME. 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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