Analysis by: Kiyoshi Obuchi
ALIASES:

JS/Redirector.eh (McAfee); JS.Adashic!inf (Symantec)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: No

  • In the wild: Yes

  OVERVIEW

Infection Channel: Hosted on a website

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

It redirects browsers to certain sites. This malicious script runs on web browsers, which may be installed on any operating system.

  TECHNICAL DETAILS

File Size: 431 bytes
File Type: JS
Memory Resident: No
Initial Samples Received Date: 13 Sep 2018
Payload: Connects to URLs/IPs

Arrival Details

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

Other Details

This Trojan redirects browsers to the following sites:

  • http://{BLOCKED}.{BLOCKED}.116.78/jquery.js
  • http://{BLOCKED}.{BLOCKED}.145.148/index.php
  • http://{BLOCKED}tyhgerfder.tk/index/?601491161591
  • http://{BLOCKED}rbon.info/blog/latest.php

It does the following:

  • The malware will proceed with the redirection, every time it is used/loaded by a webpage visited by the user.

This malicious script runs on web browsers, which may be installed on any operating system.

  SOLUTION

Minimum Scan Engine: 9.850
FIRST VSAPI PATTERN FILE: 14.508.04
FIRST VSAPI PATTERN DATE: 16 Sep 2018
VSAPI OPR PATTERN File: 14.509.00
VSAPI OPR PATTERN Date: 17 Sep 2018

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 Trojan.JS.REDIR.AA. 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 the following Trend Micro Support pages for more information:


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