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

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

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:MSIL/Formbook.PGFO!MTB
Classification:
Type:Trojan
Platform:MSIL
Family:Formbook
Detection Type:Concrete
Known malware family with identified signatures
Variant:PGFO
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 is a concrete detection of Trojan:MSIL/Formbook, a potent information stealer leveraging machine learning behavioral analysis for its detection. Formbook is known to pilfer credentials, system data, and keystrokes, posing a severe risk to sensitive information and overall system integrity.

Severity:
High
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
de0e5d92c8315b68338c60c01187cd7417f087bd64de4edfc4bf0bde605a5787
16/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system from the network. Perform a comprehensive full system antivirus scan, then reset all potentially compromised credentials (e.g., email, banking, cloud services). Due to the nature of information stealer Trojans, a full system re-image is highly recommended to ensure complete eradication and prevent reinfection.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 16/01/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
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