Tools & Techniques
FreeBSoD: Leveraging Language Models to Find and Exploit Kernel Bugs (Part 1 of 2)
Overview Earlier this year, a team at Praetorian was building Constantine, our automated 0-day discovery engine. I wanted to find techniques worth folding into it, so on the side I started poking ...
Centurion: Bring Your Own Execution Environment
Writing my own virtualized loader is something I’ve been wanting to do since I first read Microsoft’s deep dive on FinFisher’s multi-layered VM obfuscation back in 2018. FinFisher didn’t just use one layer of ...
Enter the WasmForge: Compiling Sliver into WebAssembly
In our last post we used a Claude skill to systematically beat down VirusTotal detection rates on offensive security tools, with a brief mention of a new loader we’d been using to ...
Adversarial Oracles: LLM-Guided EDR Signature Reduction
In previous blog posts we’ve talked about getting nerd sniped. Today we’re going to talk about a kind of nerd sniping that any offensive security tool creator is familiar with; when your ...
Your Login Page Is Lying: What AI Agents Find When They Read Your Frontend
TL;DR: Single-page applications ship their entire frontend codebase to every visitor, including unauthenticated ones. Even a login page with no visible functionality delivers JavaScript bundles containing route definitions, API endpoint URLs, authentication ...
Meet Vespasian. It Sees What Static Analysis Can’t.
Praetorian is excited to announce the release of Vespasian, a probabilistic API endpoint discovery, enumeration, and analysis tool. Vespasian watches real HTTP traffic from a headless browser or your existing proxy captures ...
Azure APIM Signup Bypass: 97.9% of Developer Portals Still Exploitable Anonymously and from the Internet
The Azure APIM signup bypass is a critical vulnerability affecting 97.9% of internet-facing Developer Portals. Azure API Management (APIM) exposes APIs to external consumers through a Developer Portal, the interface where developers ...
When HttpOnly Isn’t Enough: Chaining XSS and GhostScript for Full RCE Compromise
What started as a standard cross-site scripting vulnerability in a document processing platform turned into a full administrative takeover of the application and, ultimately, remote code execution on the underlying server. The ...
Augustus v0.0.9: Multi-Turn Attacks for LLMs That Fight Back
Single-turn jailbreaks are getting caught. Guardrails have matured. The easy wins — “ignore previous instructions,” base64-encoded payloads, DAN prompts — trigger refusals on most production models within milliseconds. But real attackers don’t ...
Et Tu, RDP? Detecting Sticky Keys Backdoors with Brutus and WebAssembly
Everyone knows that one person on the team who’s inexplicably lucky, the one who stumbles upon a random vulnerability seemingly by chance. A few days ago, my coworker Michael Weber was telling ...
