Hack The Box Challenges (Reversing)

PRNG seed

Weird Base64 encoding

C# .NET decompilation. Debugging with dnSpy

C# .NET decompilation

Java decompilation. Functional programming. Reverse algorithm

Core file analysis. Memory inspection. Unshuffling

Key written in a binary. Bypassing with GDB

strace. Password decryption

UPX. Revert password checking

vtable in C++. Automate flag extraction with GDB

Python compiled binary. Solution to a set of conditions

64-bit binary. Assembly code analysis. sys_ptrace bypass. Debugging with GDB

Questionnaire. Decompilation. Static and dynamic analysis

Static code analysis with Ghidra

Windows. File encryption

Virtual machine. Custom opcode instructions. sys_ptrace. XOR cipher

C# .NET decompilation. JavaScript deobfuscation. AES cipher

Core file analysis. Memory inspection. AES encryption

seccomp rules. Differential encoding

Functional programming in Haskell. z3 solver

sys_ptrace. Patching

Network traffic analysis with Wireshark. AES cipher

Substitution cipher

XOR cipher

Key comparison with strcmp

Static code analysis with Ghidra

Python script extraction. Dynamic analysis. Game cheating

XOR. Hidden key. Debugging with GDB

Debugging with x32dbg

Key written in a binary

Key written in a binary