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JS_AXPERGLE.SM

May 31, 2016
 Analysis by: Jeanne Jocson
 Modified by: Mar Philip Elaurza
 ALIASES:

VirTool:JS/Obfuscator.HO(Microsoft), JS/Iframe.MO trojan(NOD32), Trojan-Downloader.JS.Iframe.div(Kaspersky)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

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

  TECHNICAL DETAILS

File Size:

4,221 bytes

File Type:

JS

Initial Samples Received Date:

02 Mar 2016

Arrival Details

This Trojan arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.

Other Details

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

  • http://js.{BLOCKED}uebylochi.info/megaadvertize/?
  • http://asd.{BLOCKED}lyamahochy.info/megaadvertize/?

  SOLUTION

Minimum Scan Engine:

9.800

Step 1

Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.

Step 2

Before doing any scans, Windows XP, Windows Vista, and Windows 7 users must disable System Restore to allow full scanning of their computers.

Step 3

Close all opened browser windows

Step 4

Scan your computer with your Trend Micro product to clean files detected as JS_AXPERGLE.SM. 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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