FourCore ATTACK vs JSShell: Side-by-Side Comparison (2026)
Features, pricing, ratings, and pros & cons — compared head-to-head.
FourCore ATTACK is a commercial offensive security tool by FourCore. JSShell 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.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, company size fit, deployment model, here is our conclusion:
Mid-market and enterprise teams that need to prove their defenses actually work against real adversary tactics will get the most from FourCore ATTACK. Its adversary emulation engine forces you to test detection and response workflows with evidence of what failed, moving beyond checkbox compliance toward ID.RA risk assessment that sticks with your board. Skip this if your team lacks the security maturity to act on emulation findings; the tool surfaces gaps faster than your people can typically close them.
Red teamers and penetration testers running short-engagement assessments will get the most from JSShell because it's lightweight enough to deploy in seconds and collaborative enough for multiple operators to work the same shell simultaneously. The free pricing and 364 GitHub stars indicate it's survived real operational use without the bloat of commercial frameworks. Skip this if you need post-exploitation persistence or command obfuscation; JSShell is built for interactive access during active testing, not for staying hidden after the initial breach.
