Skip to content
View C4sh3R's full-sized avatar
☠️
Pwning all day long
☠️
Pwning all day long

Highlights

  • Pro

Block or report C4sh3R

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
C4sh3R/README.md

👾 c4sh3r

Offensive Security Researcher · Red Teamer · Binary/RE · Kernel & Exploit Dev · Smart-Contract Auditor · Bug Bounty Hunter

From kernel UAFs to DeFi exploits — I break it, then I prove it.

profile viewsfollowers


🧠 About

I'm an offensive security researcher operating across the entire stack — from the metal to the mempool. I don't specialize in a single surface: one week it's a use-after-free in a Linux kernel subsystem, the next it's an IDOR chain in a fintech API or a share-inflation bug in a DeFi vault. I treat every target the same way: understand it deeply, find where trust breaks, then write the exploit that proves it.

No theoretical findings. No hand-waving. If I report it, there's a working Proof-of-Concept behind it.


🎯 What I do

DomainWhat it looks like
🏴‍☠️ Red Team & Offensive OpsFull kill chain: recon → initial access → privilege escalation → RCE → root → post-exploitation & defacing
🔬 Binary Analysis & Reverse EngineeringNative daemons, firmware images, desktop & mobile binaries, embedded keys, protocol RE
🧨 Kernel & Exploit DevelopmentMemory corruption (UAF, OOB), local privilege escalation, n-day weaponization & original research
🌐 Web / API / Mobile / Infra PentestingAuth bypass, IDOR, SSRF, NoSQL injection, session attacks, server & infrastructure compromise
⛓️ Smart-Contract AuditingSolidity / EVM — ERC-4626 vaults, LayerZero/OFT bridges, oracles, staking & withdrawal queues
🐛 Bug Bounty HuntingEnd-to-end: recon, asset discovery, vulnerability research and a reproducible exploit

🧰 Arsenal

Languages

Reverse engineering & exploitation

Web / chain / infra


🏆 Where you'll find me

Public bug bounty programs, private red-team engagements, audit contests and CTFs — spanning web, mobile, IoT, firmware, kernel and on-chain. DeFi, bridges, exchanges, fintech… and the occasional kernel rabbit hole.


📊 GitHub


“If it holds value or runs code, it has an attack surface.”

Pinned Loading

  1. CTF_HTBCTF_HTBPublic

    Repository for the challenges

    HTML 1

  2. ADAutoPwnADAutoPwnPublic

    ⚡ From zero to Domain Admin, automatically — Kerberos-first Active Directory pwnage framework (recon → loot → ACL abuse → DCSync) by c4sh3r

    Shell 2

  3. htb-clihtb-cliPublic

    CLI minimalista en Bash para HackTheBox (API v4) — spawn, flags, VPN desde la terminal

    Shell 1 1

  4. ADAutoGraphADAutoGraphPublic

    Modern local BloodHound-style graph UI for Active Directory attack paths

    Python 1