reverseProhard

bedtime

dicectf_2026

Task: Stripped static-PIE Rust binary with x32 ABI anti-debug that always outputs error. Solution: Extract 384 GF(1024) buffer entries from disassembly, compute XOR modulo to determine each flag bit.

xor anti_debug rust stripped_binary static_pie x32_abi gf1024 bit_packing proc_self_maps siphash

static_rust_binary_analysisgf_modular_xor_computationregister_tracking_in_disassemblymsb_bit_packinganti_debug_bypass_via_static_analysisbuffer_constant_extraction_from_disassemblyentry_to_buffer_mapping_via_stack_offsets

$ ls tags/ techniques/

xor anti_debug rust stripped_binary static_pie x32_abi gf1024 bit_packing proc_self_maps siphash

Analysis

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$ python3 exploit.py --target 192.168.1.1 --port 8080
[*] Connecting to target...
[+] Shell obtained!

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