JS_IFRAMERE.SMJF

January 25, 2013
 Analysis by: Rika Joi Gregorio
 ALIASES:

Exploit:JS/Blacole.JL(Microsoft), JS/Exploit-Blacole.ht(McAfee), JS:Trojan.Crypt.KC(Bitdefender), JS/Blacole.GC!exploit(Fortinet)

 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 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. 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:

11,300 bytes

File Type:

JS

Initial Samples Received Date:

11 Jan 2013

Payload:

Connects to URLs/IPs

Arrival Details

This Trojan 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.

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://{random characters}.{BLOCKED}er.org/in.cgi?14

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.650.05

FIRST VSAPI PATTERN DATE:

11 Jan 2013

VSAPI OPR PATTERN File:

9.651.00

VSAPI OPR PATTERN Date:

12 Jan 2013

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 JS_IFRAMERE.SMJF. 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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