SCADAShutdownTool vs SMOD: 2026 Comparison
SCADAShutdownTool is a free penetration testing tool. SMOD is a free penetration testing tool. Compare features, ratings, integrations, and community reviews side by side to find the best penetration testing fit for your security stack.
CST VerdictBased on our analysis of available product data, here is our conclusion:
Industrial control system penetration testers who need hands-on enumeration and register manipulation will use SCADAShutdownTool to validate SCADA controller hardening without commercial licensing friction. The free pricing and GitHub availability mean you can spin it up in lab environments immediately and integrate it into your testing workflows without vendor lock-in or budget cycles. Skip this if you're looking for multi-protocol fuzzing, forensics, or any scanning beyond direct register interaction; it's a focused testing primitive, not a platform.
Operational technology teams defending industrial control systems with Modbus deployments should pick SMOD for its modular design, which lets you add offensive capabilities only to the protocols and network segments that matter to your environment instead of licensing a bloated framework. The 93 GitHub stars and active maintenance signal a tool maintained by practitioners who understand Modbus specifics rather than generic ICS vendors. Skip this if you need a polished GUI or vendor support contracts; SMOD is command-line only and lives on GitHub.
