user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Win32/Bifrose.ABF!MTB
Backdoor:Win32/Bifrose.ABF!MTB - Windows Defender threat signature analysis

Backdoor:Win32/Bifrose.ABF!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Win32/Bifrose.ABF!MTB
Classification:
Type:Backdoor
Platform:Win32
Family:Bifrose
Detection Type:Concrete
Known malware family with identified signatures
Variant:ABF
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: Backdoor - Provides unauthorized remote access for 32-bit Windows platform, family Bifrose

Summary:

This detection identifies a variant of Bifrose, a notorious Remote Access Trojan (RAT) that enables attackers to gain unauthorized control over a compromised Windows system. It allows for various malicious activities including data exfiltration, keystroke logging, screen capture, and deploying additional malware. The detection is concrete and based on machine learning behavioral analysis, indicating a high-confidence identification of malicious activity.

Severity:
High
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: virussign.com_aba0b8ace9cce65aee02d5bdb5512420
87d014ea8f106825f59b25974d96b3954bbbc727b0f7b2083b71a905dbba6bea
22/03/2026
→VirusTotal↓Download Sample
Remediation Steps:
Immediately isolate the affected system from the network. Perform a full scan with updated antivirus software, ensure all detected components are quarantined and removed. Investigate for persistence mechanisms, unusual user accounts, and potential data exfiltration. Reset all user credentials associated with the compromised machine and ensure operating system and software are fully patched.
=== END REPORT ===
$ reanalyze-threat
This analysis was last updated on 22/03/2026. Do you want to analyze it again?
$ ls available-commands/
→ cd /home
user@threatcheck.sh:~$ ▊