HTML_HTAPORN.LT

October 09, 2012
 Analysis by: Christopher Daniel So
 ALIASES:

Trojan-Downloader.JS.Agent.gcf (Kaspersky), Trojan-Downloader.JS.Agent (Ikarus)

 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 Trojan 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:

6,804 bytes

File Type:

HTA

Memory Resident:

Yes

Initial Samples Received Date:

30 Sep 2011

Arrival Details

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

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

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://www.{BLOCKED}movies.com/regist1.php?s=1&d=04&f=01&p=43066139
  • http://www.{BLOCKED}movies.com/css/regist2.css
  • http://www.{BLOCKED}movies.com/css/regist2/window-bar.jpg
  • http://www.{BLOCKED} movies.com/css/regist2/close_button.jpg
  • http://www.{BLOCKED}movies.com/css/regist2/harituki.jpg
  • http://{BLOCKED}e1.{BLOCKED}movies.com/04/01.wmv
  • http://www.{BLOCKED}movies.com/regist1.php?s=1&d=04&f=01&p=43066139

  SOLUTION

Minimum Scan Engine:

9.200

FIRST VSAPI PATTERN FILE:

8.468.02

FIRST VSAPI PATTERN DATE:

02 Oct 2011

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

Terminate a malware/grayware process

[ Learn More ]

*Note: If the detected process is not displayed in theWindows Task Manager, continue doing the next steps.

    • mshta.exe

Step 3

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