BREX_MIUREF.SM1

June 11, 2016
 Analysis by: Jimelle Monteser
 Modified by: Homer Pacag
 ALIASES:

Trojan.Win32.Boaxxe(Ikarus); Script.Trojan.Miuref.F(GData);

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted: Yes

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet

This Trojan may arrive bundled with malware packages as a malware component. It 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:

11,173 bytes

File Type:

JS

Memory Resident:

Yes

Initial Samples Received Date:

08 Mar 2014

Arrival Details

This Trojan may arrive bundled with malware packages as a malware component.

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

NOTES:

This is browser extension in Chrome with a name such as Homegroup Task. The extension redirects web searches to websites esearchpage.com and esearchpage.org.

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

10.650.03

FIRST VSAPI PATTERN DATE:

08 Mar 2014

VSAPI OPR PATTERN File:

10.651.00

VSAPI OPR PATTERN Date:

09 Mar 2014

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 BREX_MIUREF.SM1. 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.

Step 3

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.


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