Analysis by: Jaime Benigno Reyes
ALIASES:

Trojan:JS/BlacoleRef.DG (Microsoft), JS/Exploit-Blacole.eu (McAfee)

 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:

  • 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. It inserts an IFRAME tag that redirects users to certain URLs.

  TECHNICAL DETAILS

File Size: 7,657 bytes
File Type: HTML, HTM
Initial Samples Received Date: 12 Jul 2013

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.

It inserts an IFRAME tag that redirects users to the following URLs:

  • http://{BLOCKED}o.com/count25.php

  SOLUTION

Minimum Scan Engine: 9.300
FIRST VSAPI PATTERN FILE: 10.150.01
FIRST VSAPI PATTERN DATE: 12 Jul 2013
VSAPI OPR PATTERN File: 10.151.00
VSAPI OPR PATTERN Date: 13 Jul 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_IFRAME.SMSN. 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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