When Ransomware Hijacks Your Active Directory: An Executive Playbook

Why It Matters

Organizations that fail to rebuild trust in AD risk prolonged outage, cascading operational failures and repeat compromise.

Summary

When ransomware targets Active Directory (AD) —which underpins roughly 90% of large enterprises—rush recovery can reintroduce malware or compromised configurations, so containment and forensic clarity must come first. Recent SharePoint zero‑day exploits underscore how remote code execution can pivot into AD via integrated services, enabling attackers to create backdoors, disable logging and elevate privileges. The playbook urges isolated, tested AD recovery (not just system restoration), hardened identity controls (least privilege, MFA, tiered admins) and regular drills to convert zero‑trust theory into operational resilience. Organizations that fail to rebuild trust in AD risk prolonged outage, cascading operational failures and repeat compromise.