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Trojan.JS.NDSLODR.RY

March 15, 2024
 Analysis by: Raymart Christian Yambot
 ALIASES:

JS:Agent-EJE [Trj] (AVAST)

 PLATFORM:

Windows

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

  • Threat Type: Trojan

  • Destructiveness: No

  • Encrypted:

  • In the wild: Yes

  OVERVIEW

Infection Channel:

Downloaded from the Internet, Dropped by other malware


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:

155,154 bytes

File Type:

JS

Memory Resident:

No

Initial Samples Received Date:

29 Feb 2024

Payload:

Connects to URLs/IPs

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.

Other Details

This Trojan does the following:

  • Connects to the following websites to download and execute javascript code:
    • https://{BLOCKED}esourcehost.net/jquery.min.js?ver=dmgnmhmcznxm71t0cd0r0s5b

  SOLUTION

Minimum Scan Engine:

9.800

FIRST VSAPI PATTERN FILE:

19.216.03

FIRST VSAPI PATTERN DATE:

14 Mar 2024

VSAPI OPR PATTERN File:

19.217.00

VSAPI OPR PATTERN Date:

15 Mar 2024

Step 1

Trend Micro Predictive Machine Learning detects and blocks malware at the first sign of its existence, before it executes on your system. When enabled, your Trend Micro product detects this malware under the following machine learning name:

    • Downloader.JS.TRX.XXJSE9EFF056

Step 2

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 3

Scan your computer with your Trend Micro product to delete files detected as Trojan.JS.NDSLODR.RY. 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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