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TROJ_NEMUCOD.ELDSAUHB

August 25, 2017
 Analysis by: John Anthony Banes
 ALIASES:

TrojanDownloader:JS/Nemucod!rfn (Microsoft); JS/DwnLdr-UEN (Sophos Lite)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

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:

6,286 bytes

File Type:

Other

Memory Resident:

No

Initial Samples Received Date:

17 Aug 2017

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:

  • Email message containing malicious Base64-encoded JS file attachment.

  SOLUTION

Minimum Scan Engine:

9.850

FIRST VSAPI PATTERN FILE:

13.602.03

FIRST VSAPI PATTERN DATE:

18 Aug 2017

VSAPI OPR PATTERN File:

13.603.00

VSAPI OPR PATTERN Date:

19 Aug 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 TROJ_NEMUCOD.ELDSAUHB. 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.


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