Analysis by: John Anthony Banes

 ALIASES:

Downloader.NSIS.Mazel.dls (Kaspersky); PUA.BetterInstaller (Norton)

 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. It may be manually installed by a user.

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

  TECHNICAL DETAILS

Tipo de compactação: 237,016 bytes
Tipo de arquivo: EXE
Residente na memória: No
Data de recebimento das amostras iniciais: 06 Jun 2017

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.

It may be manually installed by a user.

Other Details

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

  • http://d35r6irwu1rsvl.{BLOCKED}ront.net/init/HA3243_1494928588/{data}

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

  SOLUTION

Mecanismo de varredura mínima: 9.850
SSAPI Pattern File: 1.847.00
SSAPI Pattern Release Date: 15 Jun 2017

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 PUA_SOMOTO. 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.


Did this description help? Tell us how we did.