STIG Security Hardening Checklist Pro — RMF Edition (NIST 800-53 Rev 5)

Working toward an ATO — or keeping one alive through continuous monitoring? Your systems must be hardened to NIST 800-53, and your assessor and AO will want evidence. This tool walks your team through every STIG control, maps each finding to the correct 800-53 Rev 5 control, captures your evidence notes, and generates a clean, professional report you can fold straight into your System Security Plan and RMF package.

What it does A DoD-grade hardening and assessment tool that walks you control-by-control through STIG security requirements, maps every finding to its NIST 800-53 Rev 5 control, and produces ATO-ready evidence — all in a single offline HTML file. Five finding statuses, copy-paste PowerShell fix scripts, evidence notes, and a professional compliance report you can fold straight into your RMF package. No install, no internet, no subscription.

Systems covered

• Windows 10/11 workstations
• Windows Server
• Network devices (routers & switches)
• Organizational & physical controls — patch/vulnerability management, backup & recovery, physical security, and security awareness/policy

Tag every asset by environment — Production, Dev, Test, DMZ, NIPRNet, SIPRNet, Classified/Unclassified — so your evidence reflects your actual authorization boundary.

Who this is for ISSMs, ISSOs, system administrators, and assessors working toward an Authority to Operate (ATO) — or sustaining one through continuous monitoring — in federal agencies, on government networks, or any organization that uses NIST 800-53 Rev 5 as its control baseline. (Pursuing CMMC instead? Grab the CMMC Edition.)

How it works

1. Enter your asset details to scope the assessment.
2. Expand any category and review each STIG control.
3. Assign a finding status (compliant, open, not applicable, and more).
4. Click Fix Script for a copy-paste PowerShell remediation command.
5. Click NIST 800-53 to see the exact Rev 5 control mapping.
6. Add Evidence Notes to document your verification.
7. Generate a clean compliance report for your SSP and RMF package.

STIG controls reflect DISA STIG releases current as of Q2 2026 — always verify against the latest releases at cyber.mil before formal submission. This tool supports your RMF process; it does not replace eMASS or the official STIG Viewer for ATO packages.

Built by PeregrinoTech — an ISSM with 15+ years of DoD experience. Every control, every mapping, and every remediation script reflects real-world hardening practice — not theory.

Military Precision. Cyber Defense. Real-World AI.

You will get a single, self-contained HTML file (94 KB) — runs offline in any modern browser, no install required.