user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Trojan:MSIL/Formbook.ZHK!MTB
Trojan:MSIL/Formbook.ZHK!MTB - Windows Defender threat signature analysis

Trojan:MSIL/Formbook.ZHK!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:MSIL/Formbook.ZHK!MTB
Classification:
Type:Trojan
Platform:MSIL
Family:Formbook
Detection Type:Concrete
Known malware family with identified signatures
Variant:ZHK
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 .NET (Microsoft Intermediate Language) platform, family Formbook

Summary:

This detection identifies the Formbook infostealer trojan, a common malware-as-a-service. It is designed to steal sensitive information such as login credentials from web browsers, capture keystrokes, and can download and execute additional malicious payloads.

Severity:
Medium
VDM Static Detection:
No detailed analysis available from definition files.
Remediation Steps:
Isolate the host from the network immediately. Run a comprehensive antivirus scan to remove all malicious components. Since this is an infostealer, reset all passwords for accounts used on this machine and monitor for unauthorized activity.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 12/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊