user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat TrojanDownloader:JS/Nemucod.NMU!MTB
TrojanDownloader:JS/Nemucod.NMU!MTB - Windows Defender threat signature analysis

TrojanDownloader:JS/Nemucod.NMU!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: TrojanDownloader:JS/Nemucod.NMU!MTB
Classification:
Type:TrojanDownloader
Platform:JS
Family:Nemucod
Detection Type:Concrete
Known malware family with identified signatures
Variant:NMU
Specific signature variant within the malware family
Suffix:!MTB
Detected via machine learning and behavioral analysis
Detection Method:Behavioral
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan Downloader - Downloads additional malware for JavaScript platform, family Nemucod

Summary:

TrojanDownloader:JS/Nemucod is a malicious JavaScript file, commonly spread through email attachments. Its primary function is to download and execute other, more dangerous malware, such as ransomware, onto the compromised system.

Severity:
Medium
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: DHL 231437894819.js
aa5ac113df76c7e35a44261abf09b8e7f30b90413584fb2c6ffa91cb1c3f0302
19/11/2025
→VirusTotal↓Download Sample
Filename: DHL Shipping Documents 20-11-25.js
cc6d66c7222b8497db5b7ef742f6c1e71e02d7d761c306a94ea729e7bb958f98
18/11/2025
→VirusTotal↓Download Sample
Filename: Order31500.js
4cbf177a2a4cfd5bbbcec8f5a4805ec1069f22f7444d0946bc4caaaf558076e8
18/11/2025
→VirusTotal↓Download Sample
Filename: Quotation B90SMD80_Ref183.js
221f21d29cb9a445252318ca258b727b0fe7542a866819944b191b67ab2f8760
18/11/2025
→VirusTotal↓Download Sample
Filename: order5969979799760079977.js
3050508097d38d766e51382cc8e87bd60c570cb352bcde464456e6d807fd1358
18/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the affected machine from the network. Ensure the detected file is quarantined and run a full system scan to find any secondary malware. Identify the entry vector (e.g., malicious email) and delete it to prevent reinfection.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 14/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊