Analysis by: Rhena Inocencio
 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: Spammed via email

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

This is the Trend Micro detection for files that exhibit certain behaviors.

  TECHNICAL DETAILS

File Size: Varies
File Type: DOC
Memory Resident: No
Initial Samples Received Date: 20 Apr 2016

Arrival Details

This Trojan arrives as an attachment to email messages spammed by other malware/grayware or malicious users.

Other Details

This is the Trend Micro detection for:

  • W2KM_NYMAIM samples whose malicious macro code has been removed from the word document

NOTES:
Typical working samples of W2KM_NYMAIM download variants of NYMAIM malware into the affected system

  SOLUTION

Minimum Scan Engine: 9.800
FIRST VSAPI PATTERN FILE: 12.478.04
FIRST VSAPI PATTERN DATE: 20 Apr 2016
VSAPI OPR PATTERN File: 12.479.00
VSAPI OPR PATTERN Date: 21 Apr 2016

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_NYMAIM.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 this Knowledge Base page for more information.

Step 3

Enable the macro virus protection in Microsoft Office Applications

[ Learn More ]


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