This article discusses common final-stage techniques used by ransomware attackers to evade detection, disable security measures, and cover their tracks. Detecting activities such as system modifications, data exfiltration, log cleaning, backup deletion, and ransom note delivery is crucial for effective incident response. #bcdedit #PowerShell #VSSadmin #RansomwareExtensions
Keypoints
- Ransomware often disables security services and modifies boot settings to survive reboots.
- Detection rules in tools like Defender XDR or Microsoft Sentinel can identify these malicious activities early.
- Indicators of compromise include data exfiltration, logs and forensic evidence removal, and backup tampering.
- Active ransomware is often detected through altered file extensions, shadow copy deletion commands, and ransom note drops.
- Early detection of final-stage activities helps prevent permanent damage and improves incident response times.