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liamsto/README.md

Hello, I'm Liam.

Here is my PGP public key for my Git email.

About me

I’m an offensive security practitioner, primarily training on Hack The Box (see my profile for stats and progress tracking). On the offensive side my favourites are:

  • AD/LDAP exploitation: BloodHound, Kerberos abuse (AS-REP roasting, Kerberoasting, constrained/unconstrained delegation), ACL/GPO misconfig, certificate service attacks, lateral movement, and privilege escalation in enterprise environments.
  • C2 frameworks: Mythic, Sliver
  • Binary exploitation and RE: vulnerability discovery and exploit development across a wide variety of architectures (mainly AMD64, but also a handful of RISC architectures, mainly ARM and RISC-V), modern mitigations (ASLR, NX, PIE, canaries, RELRO) and bypasses, ROP chaining, and binary debugging and disassembly/RE (pwndbg and Ghidra).
  • Web exploitation: authentication/authorization flaws, injection classes (SQLi/NoSQLi/command injection), SSRF/file inclusion/deserialization, BurpSuite.
  • Wireless and network offensive operations: Wi-Fi security (WPA2/WPA3, rogue AP/evil-twin), internal network service exploitation (SMB/WinRM/RPC/LDAP), and traffic analysis.

On the defensive side:

  • Reverse engineering (Ghidra, mainly): static analysis, function and type recovery, decompilation.
  • Malware and exploit analysis: unpacking, behavioral analysis, finding IOCs and persistence, and mapping to ATT&CK.

I also do some programming in Rust, and a lot of tinkering around with x86, RISC-V, and Raspberry Pis when I get a chance.

HackTheBox Badges

Below are some of the rarest HTB badges I've achieved. I have a lot more, of course, but these are the hardest, most interesting ones I have completed, in no particular order. All these machines and challenges are Insane level difficulty. Click on any of the images to view them on my HTB profile and see the rarities for yourself:

Badge Description Rarity
HTB badge: Completed the Twelve Labours Completed the Twelve Labours - owned the Hercules machine 0.05% of users
HTB badge: Pivoter Pivoter - owned the PivotAPI machine 0.04% of users
HTB badge: Strategic Thinker Strategic Thinker - owned the Toby machine 0.01% of users
HTB badge: Echoed Back Echoed Back - owned the echoland challenge 0.01% of users
HTB badge: Ghost Whisperer Ghost Whisperer - owned the Ghost machine 0.05% of users
HTB badge: One instruction wonder One instruction wonder - owned the Substandard Optimization challenge 0.02% of users

Pinned Loading

  1. js8rs js8rs Public

    A Rust JS8 library, with a focus on performance and simplicity.

    Rust

  2. halcyon halcyon Public

    A RISC-V kernel written in Rust.

    Rust