Kronos / Osiris (also known as Kronos, Osiris) is a banking trojan active since 2014. Banking trojan. Key characteristics include: web injects, form grabbing, keylogging, developer Marcus Hutchins (MalwareTech) arrested.
Overview & Background
Banking trojan. First identified in 2014, this threat is attributed to eCrime.
Threat Assessment
Kronos remains an active threat. Organizations should implement detection rules and monitor for indicators associated with this banking trojan.
- Category: Banking Trojan
- Active since: 2014
- Attribution: eCrime
- Also known as: Kronos, Osiris
Technical Analysis
Kronos employs the following capabilities and techniques:
- Web Injects: Core functionality
- Form Grabbing: Core functionality
- Keylogging: Core functionality
- Developer Marcus Hutchins (Malwaretech) Arrested: 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 Kronos indicators
- Network monitoring: Monitor for C2 traffic patterns and anomalous connections
- Threat intelligence: Track Kronos IOCs and campaign updates
- Security awareness: Train users to recognize phishing and social engineering
- Patch management: Keep systems updated to prevent exploitation
Defend Against Kronos
Mjolnir Security provides detection and response capabilities against Kronos and similar threats.
Threat DetectionIncident ResponseThreat HuntingMDR ServicesThreat Intelligence
- Proactive Threat Hunting Hunt for Kronos indicators and TTPs within your environment.
- Threat Intelligence Monitor Kronos campaigns and infrastructure changes.
- 24/7 Incident Response Rapid containment and forensic investigation. Call +1 833 403 5875.
Written by: Mjolnir Security | Published: August 19, 2025
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