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

Trojan:Win32/FormBook!rfn - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Trojan:Win32/FormBook!rfn
Classification:
Type:Trojan
Platform:Win32
Family:FormBook
Detection Type:Concrete
Known malware family with identified signatures
Suffix:!rfn
Specific ransomware family name
Confidence:Very High
False-Positive Risk:Low

Concrete signature match: Trojan - Appears legitimate but performs malicious actions for 32-bit Windows platform, family FormBook

Summary:

This is a concrete detection for FormBook, a well-known and potent information-stealing trojan. It is designed to harvest sensitive data, including credentials from web browsers and email clients, log keystrokes, and can download and execute additional malware.

Severity:
Critical
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: N°00118_251111417.exe
305d433cd3c67e17d99ae1a99fd3efb54907d55c55e4c6b9f13bb3aa6bbf3a21
22/01/2026
→VirusTotal↓Download Sample
Filename: Purchase Order_#1009123.exe
172c3076e5d6bfe9089a1e092d1286e77337bc3680db32539e3a7bf69b7d0560
14/01/2026
→VirusTotal↓Download Sample
Filename: MV GOLDEN VESSEL INFOpdf.exe
77be2ee5c55a9c5f20b6522fb6fbd174465481ad60b5143c95ee31e16fccaf8e
14/01/2026
→VirusTotal↓Download Sample
Filename: PurchaseOder00047T792198.exe
f1480ae593b10cb4e34ca69aad57cbc14ca94b3aed963c870affd9dba7bb2356
08/01/2026
→VirusTotal↓Download Sample
Filename: MT Caribbean 1 Vessel Specification.scr
8409c2dbea8abea1f92301840dbd317620a985ccf323fb3df04ae51703786cb6
07/01/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the infected machine from the network to prevent further data exfiltration or lateral movement. Run a full antivirus scan to remove the threat. Reset all user passwords stored on or accessed from the machine and consider reimaging the device to ensure complete removal.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 11/11/2025. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊