Content about xor-cipher
- •5 min read•ctfadvent-of-ctf
Advent of CTF 2025: Day 4 - The Elf's Wager
Reverse engineering challenge involving static analysis of a stripped ELF binary with anti-debugging measures and XOR-based authentication.
Reverse engineering challenge involving static analysis of a stripped ELF binary with anti-debugging measures and XOR-based authentication.
_____ _ _ _ _
|_ _| |__ ___ ___ ___ __| | | |__ __ _ __| |
| | | '_ \ / _ \ / __/ _ \ / _` | | '_ \ / _` |/ _` |
| | | | | | __/ | (_| (_) | (_| | | | | | (_| | (_| |
|_| |_| |_|\___| \___\___/ \__,_| |_| |_|\__,_|\__,_|
You found the secret! True hacker spirit detected.
> Analyzing binary...
> Signature detected: ELITE_HACKER
> Access level: MAXIMUM
> Status: PWNED 🔓