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D3-OSH

Operating System Hardening

Harden Tactic

Configure operating systems securely by removing unnecessary services, applying patches, and enforcing security policies.

View on MITRE D3FEND

Implementation Guidance

  • Apply OS security baselines
  • Remove or disable unnecessary services
  • Implement host-based firewall
  • Enable audit logging
  • Deploy endpoint protection

Tools & Technologies

Microsoft Security BaselineCIS Hardened ImagesSCAP Compliance CheckerAnsible Security AutomationPuppet/Chef

ATT&CK Techniques Countered

This defensive technique helps protect against the following adversary techniques:

T1547

Boot or Logon Autostart Execution

T1053

Scheduled Task/Job

Explore Purple Team Matrix for full mappings

Related Techniques in Harden

D3-ACL

Access Control List Hardening

D3-CH

Credential Hardening

D3-ASH

Application Security Hardening

D3-PM

Patch Management

Ready to build a comprehensive defense strategy?