fexecve harness vs Donut: 2026 Comparison
fexecve harness is a free offensive security tool. Donut 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 available product data, here is our conclusion:
Red teamers and penetration testers running controlled engagements will find fexecve harness valuable for in-memory execution testing where AV evasion and fileless delivery matter; the tool's multi-vector approach (URL, netcat, direct memory execution) covers the common paths defenders actually monitor for. The free pricing and active GitHub presence mean you're not betting on vendor support. Skip this if you need post-exploitation persistence or obfuscation beyond execution; fexecve harness does one thing narrowly and won't replace a full payload framework.
Red teamers and penetration testers who need to deliver .NET and PE payloads that evade memory-scanning EDR will find Donut essential; it generates position-independent shellcode that executes directly from memory without touching disk, eliminating the most common detection vector. With 4,492 GitHub stars and active community contributions, the tool has been battle-tested across real engagements and stays current with Windows API changes. Skip this if you're looking for post-exploitation frameworks with built-in C2 capability or if your scope is limited to external reconnaissance; Donut is narrowly focused on the injection problem and assumes you already have payload delivery sorted.
