Features, pricing, ratings, and pros & cons — compared head-to-head.
Fortra Cobalt Strike is a commercial offensive security tool by Fortra. Mortar is a free offensive security tool. Compare features, ratings, integrations, and community reviews side by side to find the best offensive security fit for your security stack.
Based on our analysis of NIST CSF 2.0 coverage, core features, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise red teams will pick Fortra Cobalt Strike for the Malleable C2 language, which lets you reshape network indicators to match your target environment instead of fighting against detection signatures built for the tool's defaults. The shared team server and asynchronous low-and-slow communication model reflect NIST ID.RA and DE.AE coverage, meaning you can run realistic adversary simulations that actually test how your SOC detects slow exfiltration and lateral movement, not just fast attacks. Skip this if your organization needs purple team automation or wants the tool to generate its own reports without manual TTP documentation; Cobalt Strike is built for operators who know what they're hunting for.
Red teamers and penetration testers validating their own detection coverage should use Mortar to systematically test whether your EDR and XDR actually catch what you think they catch. The tool's free pricing and 1,501 GitHub stars reflect genuine adoption among practitioners who need to simulate evasion techniques without licensing friction. Skip this if you're looking for a commercial product with vendor support or want something that doubles as a monitoring platform; Mortar is a testing harness, not a detection layer.
Threat emulation tool for adversary simulations and red team operations
Mortar is an evasion technique to defeat and divert detection and prevention of security products, including AV, EDR, and XDR solutions.
Access NIST CSF 2.0 data from thousands of security products via MCP to assess your stack coverage.
Access via MCPNo reviews yet
No reviews yet
Explore more tools in this category or create a security stack with your selections.
Common questions about comparing Fortra Cobalt Strike vs Mortar for your offensive security needs.
Fortra Cobalt Strike: Threat emulation tool for adversary simulations and red team operations. built by Fortra. Core capabilities include Post-exploitation payload (Beacon) with PowerShell execution, keylogging, screenshots, and file downloads, Malleable Command and Control (C2) language for network indicator customization, Browser pivoting for hijacking authenticated web sessions..
Mortar: Mortar is an evasion technique to defeat and divert detection and prevention of security products, including AV, EDR, and XDR solutions..
Both serve the Offensive Security market but differ in approach, feature depth, and target audience.
Fortra Cobalt Strike is developed by Fortra. Mortar is open-source with 1,501 GitHub stars. Vendor maturity, funding stage, and team size can be important factors when evaluating long-term viability and support quality.
Fortra Cobalt Strike and Mortar serve similar Offensive Security use cases: both are Offensive Security tools, both cover Red Team. Key differences: Fortra Cobalt Strike is Commercial while Mortar is Free, Mortar is open-source. Review the feature comparison above to determine which fits your requirements.
Get strategic cybersecurity insights in your inbox