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JS_BLACOLE.RO

January 15, 2014
 Analysis by: Ardin Christopher Maglalang
 Modified by: Rika Joi Gregorio
 ALIASES:

Exploit:JS/Blacole.ND(Microsoft), JS/Kryptik.ANZ(Eset), Trojan.JS.Obfuscator.aa(Sunbelt), JS:Exploit.BlackHole.AY(Bitdefender)

 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: Yes

  • In the wild: Yes

  OVERVIEW


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

It does not have any propagation routine.

It does not have any backdoor routine.

It does not drop any other file.

It does not have any downloading capability.

It does not have any information-stealing capability.

This is the Trend Micro detection for Web pages that were compromised through the insertion of a certain malicious script. It inserts an IFRAME tag that redirects users to certain URLs. However, as of this writing, the said sites are inaccessible.

  TECHNICAL DETAILS

File Size:

27,741 bytes

File Type:

HTML, HTM

Initial Samples Received Date:

12 Jan 2014

Payload:

Connects to URLs/IPs

Arrival Details

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

Propagation

This Trojan does not have any propagation routine.

Backdoor Routine

This Trojan does not have any backdoor routine.

Dropping Routine

This Trojan does not drop any other file.

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 Web pages that were compromised through the insertion of a certain malicious script.

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

  • http://{BLOCKED}ruppe.de/typo3/YN7MxKpZ.php

However, as of this writing, the said sites are inaccessible.

NOTES:

It does not have rootkit capabilities.

It does not exploit any vulnerability.

  SOLUTION

Minimum Scan Engine:

9.700

FIRST VSAPI PATTERN FILE:

8.900.07

FIRST VSAPI PATTERN DATE:

10 Apr 2012

VSAPI OPR PATTERN File:

8.901.00

VSAPI OPR PATTERN Date:

10 Apr 2012

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.RO. 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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