From bytecode to bytes- automated magic packet generation
Apr 8, 2026Axel Boesenach
Summary
Introduced a novel tool leveraging symbolic execution and the Z3 theorem prover to automatically generate "magic packets" that trigger Linux malware hidden within classic BPF socket programs. This significantly reduces the manual effort required for security researchers to reverse-engineer stealthy backdoors.
More from the Website Security & Threat Management trail
- We tested our own WAF with frontier AI models. Here’s what we found
- When scanners miss the attack: how Cloudflare Client-Side Security protects storefronts
- Introducing automatic remediation policies with Cloudflare CASB
- Introducing context-aware vulnerability discovery and remediation with Cloudflare Managed Defense and OpenAI Daybreak Models
- Introducing Adaptive Intelligence: undermining the economics of every bot attack