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JS_PHISH.AC

July 01, 2015
 Analysis by: Jon Dexter Laurin
 PLATFORM:

Windows

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

  • Threat Type: Spyware

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Dropped by other malware, Downloaded from the Internet


This spyware arrives as a component bundled with malware/grayware packages. It may be hosted on a website and run when a user accesses the said website.

It retrieves specific information from the affected system.

It may be used by other malware in performing their malicious routines.

  TECHNICAL DETAILS

File Size:

29,243 bytes

File Type:

JS

Initial Samples Received Date:

24 Jun 2015

Arrival Details

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

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

Information Theft

This spyware retrieves the following information from the affected system:

  • Adobe Flash Version
  • Java Version
  • Web Browser Extension:
    • Kaspersky
    • FiddlerHook
    • Xunlei
    • Live HTTP Header
    • Web Developer
    • AVG2012
    • Tamper Data
    • Adblocker
    • Avast

Stolen Information

This spyware sends the gathered information via HTTP POST to the following URL:

  • http://ml.{BLOCKED}u.org/ua/message//recv.php

NOTES:

This malware encrypts strings of the web browser extension that exists and sends the encrypted strings information to the said site.

  SOLUTION

Minimum Scan Engine:

9.750

FIRST VSAPI PATTERN FILE:

11.752.03

FIRST VSAPI PATTERN DATE:

25 Jun 2015

VSAPI OPR PATTERN File:

11.753.00

VSAPI OPR PATTERN Date:

26 Jun 2015

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

Scan your computer with your Trend Micro product to delete files detected as JS_PHISH.AC. 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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