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Trojan.HTML.REDIR.WVEHYH

July 24, 2019
 Analysis by: Janus Agcaoili
 ALIASES:

HTML/Refresh.BC (ESET-NOD32)

 PLATFORM:

Windows

 OVERALL RISK RATING:
 REPORTED INFECTION:

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

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

  TECHNICAL DETAILS

File Size:

941 bytes

File Type:

HTML, HTM

Memory Resident:

No

Initial Samples Received Date:

22 Jul 2019

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.

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

Other Details

This Trojan connects to the following possibly malicious URL:

  • http://{BLOCKED}ask.{BLOCKED}tos.com.de/LJ3BBBX3MMR/94486/{BLOCKED}vbr-{BLOCKED}ras.com.br.html

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

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

15.252.03

FIRST VSAPI PATTERN DATE:

23 Jul 2019

VSAPI OPR PATTERN File:

15.253.00

VSAPI OPR PATTERN Date:

24 Jul 2019

Step 1

Before doing any scans, Windows 7, Windows 8, Windows 8.1, and Windows 10 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 Trojan.HTML.REDIR.WVEHYH. 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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