ICSREF vs SMOD: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros and cons, compared head to head.
ICSREF is a free industrial control system security tool. SMOD is a free penetration testing tool. Compare features, ratings, integrations, and community reviews side by side to find the best industrial control system security fit for your security stack. Independent and vendor-neutral: our scores and rankings are earned, never bought — sponsored placement is always labeled.
CST VerdictShort answer
OT security teams responsible for CODESYS-based manufacturing environments should pick ICSREF if reverse engineering is your bottleneck; the tool automates what takes analysts weeks manually, and the 179 GitHub stars indicate active use in real deployments. The modular framework design means you're not paying licensing costs to test it against your own binaries first. This isn't useful if your sites run Siemens TIA Portal or Allen-Bradley systems; ICSREF's value is CODESYS-specific, so confirm your install base before allocating analyst time to learn it. 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.
Based on our analysis of available product data, here is our conclusion:
OT security teams responsible for CODESYS-based manufacturing environments should pick ICSREF if reverse engineering is your bottleneck; the tool automates what takes analysts weeks manually, and the 179 GitHub stars indicate active use in real deployments. The modular framework design means you're not paying licensing costs to test it against your own binaries first. This isn't useful if your sites run Siemens TIA Portal or Allen-Bradley systems; ICSREF's value is CODESYS-specific, so confirm your install base before allocating analyst time to learn it.
