Fynloski RAT (also known as Fynloski, DarkComet variant) is a malware active since 2012. Delphi-based RAT. Key characteristics include: remote desktop, keylogger, webcam, file manager, based on DarkComet code.
Overview & Background
Delphi-based RAT. First identified in 2012, this threat is attributed to eCrime.
Threat Assessment
Fynloski RAT remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this malware.
- Category: Malware
- Active since: 2012
- Attribution: eCrime
- Also known as: Fynloski, DarkComet variant
Technical Analysis
Fynloski RAT employs the following capabilities and techniques:
- Remote Desktop: Core functionality
- Keylogger: Core functionality
- Webcam: Core functionality
- File Manager: Core functionality
- Based On Darkcomet Code: Core functionality
MITRE ATT&CK Mapping
| Tactic | Technique | Usage |
|---|---|---|
| Initial Access | T1566.001 Phishing Attachment | Common delivery vector |
| Execution | T1204.002 Malicious File | User-triggered execution |
| Persistence | T1547.001 Registry Run Keys | Autostart persistence |
| Defense Evasion | T1027 Obfuscated Files | Payload obfuscation |
| C2 | T1071.001 Web Protocols | HTTP/HTTPS C2 |
Detection & Defense
- Endpoint detection: Deploy behavioral detection rules for Fynloski RAT indicators
- Network monitoring: Monitor for C2 traffic patterns and anomalous connections
- Threat intelligence: Track Fynloski RAT IOCs and campaign updates
- Security awareness: Train users to recognize phishing and social engineering
- Patch management: Keep systems updated to prevent exploitation
Defend Against Fynloski RAT
Mjolnir Security provides detection and response capabilities against Fynloski RAT and similar threats.
Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
- Proactive Threat Hunting Hunt for Fynloski RAT indicators and TTPs within your environment.
- Threat Intelligence Monitor Fynloski RAT campaigns and infrastructure changes.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security | Published: April 27, 2025
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