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PUA_INSTALLMONSTR.GA

February 02, 2018
 Analysis by: John Kevin Sanchez
 ALIASES:

PUA.Installmonstr (Ikarus), Trojan.Win32.Inject.aidnk (Kaspersky), Adware.InstallMonster (Malwarebytes)

 PLATFORM:

Windows

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

  • Threat Type: Potentially Unwanted Application

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW


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

  TECHNICAL DETAILS

File Size:

4,245,504 bytes

File Type:

EXE

Memory Resident:

Yes

Initial Samples Received Date:

29 Jan 2018

Arrival Details

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

Installation

This Potentially Unwanted Application adds the following processes:

  • iexplore.exe

Other Details

This Potentially Unwanted Application connects to the following possibly malicious URL:

  • http://{BLOCKED}uz.info/miflezet
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/typ_1.html
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/assets/css/style.css
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/public/js/jquery.min.js
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/assets/css/style.css
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/public/js/jquery.min.js
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/assets/img/icon1-green.png
  • http://{BLOCKED}c.deliverydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/assets/img/icon2-green.png
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/72e8e276-8bc5-11e6-a5ec-0695da005429/assets/img/icon3-green.png
  • http://{BLOCKED}c.{BLOCKED}3.amazonaws.com/pr/public/js/adframe.js
  • http://{BLOCKED}c.{BLOCKED}3.amazonaws.com/ads.js?stam=err
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/pr/public/js/detector.js
  • http://{BLOCKED}c.{BLOCKED}rydlcenter.com/favicon.ico
  • http://{BLOCKED}miracle.top/api
  • http://{BLOCKED}rge.top/api

  SOLUTION

Minimum Scan Engine:

9.850

SSAPI PATTERN File:

1.917.00

SSAPI PATTERN Date:

08 Feb 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

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 3

Scan your computer with your Trend Micro product to delete files detected as PUA_INSTALLMONSTR.GA. 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:

NOTES:

Before doing Step 3, close the following added process:

  • iexplore.exe


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