Detection and Early Indicators
Spotting an attack in progress.
Detect Before Encryption
Ransomware operators spend hours or days inside a network before encrypting. This dwell time is your detection window. Catching the intrusion during reconnaissance or lateral movement lets you contain it before any files are locked.
Detection focuses on behavior, not just signatures, because attackers abuse legitimate tools to stay quiet.
Signs of Initial Access
Early indicators often appear at the perimeter and identity layer:
- Successful logins from unusual geographies or impossible travel
- A spike in failed RDP or VPN attempts (brute force)
- New external connections from internet-facing servers
- A user reporting a phishing email after clicking
Correlating identity logs with network data surfaces these before the attacker digs in.
All lessons in this course
- How Ransomware Works
- Prevention and Hardening
- Detection and Early Indicators
- Incident Response and Recovery