user@threatcheck.sh ~ threat-analysis
bash
$ analyze-threat Backdoor:Linux/Gafgyt.AF!MTB
Backdoor:Linux/Gafgyt.AF!MTB - Windows Defender threat signature analysis

Backdoor:Linux/Gafgyt.AF!MTB - Windows Defender Threat Analysis

$ cat analysis.txt
=== THREAT ANALYSIS REPORT ===
Threat Name: Backdoor:Linux/Gafgyt.AF!MTB
Classification:
Type:Backdoor
Platform:Linux
Family:Gafgyt
Detection Type:Concrete
Known malware family with identified signatures
Variant:AF
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 Linux platform, family Gafgyt

Summary:

Backdoor:Linux/Gafgyt.AF!MTB is a detection for a variant of the Gafgyt botnet malware targeting Linux systems. This threat typically infects devices by exploiting vulnerabilities, adding them to a botnet controlled by an attacker. Compromised systems are then used to launch Distributed Denial-of-Service (DDoS) attacks.

Severity:
Medium
VDM Static Detection:
No detailed analysis available from definition files.
Known malware which is associated with this threat:
Filename: openssh
e8bb8d83dc62c7b4830d5a8a797175435f6182a9afad0f33d4ef780a8def60f4
11/12/2025
→VirusTotal↓Download Sample
Filename: cron
93ce367e397ebeb13d489cf11de4a2abad29711030e29e47e91f967a983fdbf0
11/12/2025
→VirusTotal↓Download Sample
Filename: sh
d414a840df9701ed5446a7411c01553d8fc08bd1ce1c435d6d9a7de0a9073556
11/12/2025
→VirusTotal↓Download Sample
Filename: sshd
93ab7c9aecdabd7a07fe344189d38e8be5556b508cf5c0296e15aa081091b9c4
11/12/2025
→VirusTotal↓Download Sample
Filename: tftp
e2e67d52821162ef4e0eccc5f36cfb8fe50a49fbd6157ce90603c4d3dc9694b3
11/12/2025
→VirusTotal↓Download Sample
Remediation Steps:
1. Isolate the affected Linux system from the network. 2. Identify and remove the malicious Gafgyt executable and any associated persistence mechanisms (e.g., cron jobs, startup scripts). 3. Change all credentials and apply all security patches to the OS and applications to prevent reinfection.
=== 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:~$ ▊