Hiding a syscall opcode inside an immediate and jumping into the instruction midpoint to bypass Capstone-based shellcode filtering
Deriving an AES-256 key from a hardcoded Windows path and decrypting Pumpkin.html.enc with the fixed IV embedded in the binary
Solving an embedded Sudoku, deriving a row-ordered 27-byte keystream, and XORing the hardcoded ciphertext
Recovering a 48-byte secret from a stateful AES-CBC encryption oracle by forcing block collisions across chained requests