Trojan:JS/Nemucod!MSR (MICROSOFT); JS/TrojanDownloader.Agent.UNH trojan (NOD32)
Windows
Dropped by other malware, Downloaded from the Internet
This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
It executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
However, as of this writing, the said sites are inaccessible.
348,539 bytes
26 Feb 2020
Connects to URLs/IPs, Steals information
Arrival Details
This Worm arrives on a system as a file dropped by other malware or as a file downloaded unknowingly by users when visiting malicious sites.
Installation
This Worm adds the following processes:
It displays the following fake error messages:
Download Routine
This Worm connects to the following website(s) to download and execute a malicious file:
It saves the files it downloads using the following names:
It then executes the downloaded files. As a result, malicious routines of the downloaded files are exhibited on the affected system.
Information Theft
This Worm gathers the following data:
Other Details
This Worm does the following:
However, as of this writing, the said sites are inaccessible.
9.850
15.724.03
05 Mar 2020
15.725.00
06 Mar 2020
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:
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
Note that not all files, folders, and registry keys and entries are installed on your computer during this malware's/spyware's/grayware's execution. This may be due to incomplete installation or other operating system conditions. If you do not find the same files/folders/registry information, please proceed to the next step.
Step 4
Identify and terminate files detected as Worm.JS.JASCREX.A
Step 5
Search and delete these files
Step 6
Scan your computer with your Trend Micro product to delete files detected as Worm.JS.JASCREX.A. 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: