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W2KM_DOWNLOADER.DAM

June 12, 2018
 Analysis by: Michael Jhon Ofiaza
 ALIASES:

Trojan:Win32/Skeeyah.A!rfn (Microsoft) ; W97M.Downloader (Norton) ; VB:Trojan.Valyria.1839 (Bitdefender)

 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:

Downloaded from the Internet


This is the Trend Micro detection for damaged samples of W2KM_DOWNLOADER variants. These samples have code errors that prevent them from properly executing their routines.

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.

  TECHNICAL DETAILS

File Size:

91,136 bytes

File Type:

DOC

Memory Resident:

No

Initial Samples Received Date:

07 Jun 2018

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.

NOTES:

This is the Trend Micro detection for damaged samples of W2KM_DOWNLOADER variants. These samples have code errors that prevent them from properly executing their routines.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

14.310.04

FIRST VSAPI PATTERN DATE:

12 Jun 2018

VSAPI OPR PATTERN File:

14.311.00

VSAPI OPR PATTERN Date:

13 Jun 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

Scan your computer with your Trend Micro product to delete files detected as W2KM_DOWNLOADER.DAM. 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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