user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:Win32/KoiLoader.C!MTB
Trojan:Win32/KoiLoader.C!MTB - Windows Defender threat signature analysis

Trojan:Win32/KoiLoader.C!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/KoiLoader.C!MTB
Classification:
Type:Trojan
Platform:Win32
Family:KoiLoader
Detection Type:Concrete
Known malware family with identified signatures
Variant:C
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 - Appears legitimate but performs malicious actions for 32-bit Windows platform, family KoiLoader

Summary:

Trojan:Win32/KoiLoader.C!MTB is a malware loader detected by Microsoft Defender's machine learning behavioral analysis. Its primary function is to infiltrate a system and then download and execute additional malicious payloads, such as spyware or ransomware.

Severity:
Medium
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: pieletJF.exe
d3e4dfd4d8b165b33574d231be9b1d3c31d243cb145c79987a5f2f59554f4b77
14/11/2025
→VirusTotal↓Download Sample
Remediation Steps:
Isolate the affected system from the network. Run a full, updated antivirus scan to ensure all malicious components are removed. Investigate the initial infection vector (e.g., email, download) to prevent reoccurrence and identify other potential compromises.
=== 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:~$ ▊