HTML_IFRAME.DHR

April 18, 2014
 Analysis by: Adrian Cofreros
 Modified by: Rika Joi Gregorio
 ALIASES:

Mal/Iframe-AN(SOPHOS_LITE)

 PLATFORM:

Windows 2000, Windows Server 2003, Windows XP (32-bit, 64-bit), Windows Vista (32-bit, 64-bit), Windows 7 (32-bit, 64-bit)

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

This Trojan arrives as a component bundled with malware/grayware packages. It executes when a user accesses certain websites where it is hosted.

It does not have any propagation routine.

It does not have any backdoor routine.

It does not have any downloading capability.

It does not have any information-stealing capability.

This is the Trend Micro detection for files that contain malicious IFRAME tags. Once a user visits an affected Web page, this HTML script launches a hidden IFRAME that connects to a malicious URL. It redirects browsers to certain sites.

  TECHNICAL DETAILS

File Size:

Varies

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

25 Jan 2014

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan arrives as a component bundled with malware/grayware packages.

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

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Download Routine

This Trojan does not have any downloading capability.

Information Theft

This Trojan does not have any information-stealing capability.

Other Details

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

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

It redirects browsers to the following sites:

  • http://{BLOCKED}nt.{BLOCKED}sit.net/page/d2.htm
  • http://{BLOCKED}king.{BLOCKED}ance.com/santui.htm
  • http://{BLOCKED}ky.{BLOCKED}ink.COM/1122/dd.php

NOTES:

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

10.560.08

FIRST VSAPI PATTERN DATE:

24 Jan 2014

VSAPI OPR PATTERN File:

10.561.00

VSAPI OPR PATTERN Date:

25 Jan 2014

Step 1

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 2

Close all opened browser windows

Step 3

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