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JS_BLACOLE.OT

June 04, 2013
 Analysis by: Jimelle Monteser
 ALIASES:

HTML/Framer (AVG), Exploit.JS.Blacole (Ikarus), Trojan:JS/BlacoleRef.DD (Microsoft), JS/Kryptik.AGY trojan (NOD32)

 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:

  • 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.

  TECHNICAL DETAILS

File Size:

4,347 bytes

File Type:

JS

Initial Samples Received Date:

29 May 2013

Arrival Details

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

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}.{BLOCKED}.18.91/go.php?sid=1

  SOLUTION

Minimum Scan Engine:

9.300

FIRST VSAPI PATTERN FILE:

9.958.09

FIRST VSAPI PATTERN DATE:

29 May 2013

VSAPI OPR PATTERN File:

9.959.00

VSAPI OPR PATTERN Date:

30 May 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_BLACOLE.OT. 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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