reversehard
Анализатор вселенной (Universe Analyzer)
hackerlab
Task: UPX-packed binary with corrupted magic, SIGILL-based XTEA encryption, and obfuscated arithmetic. Solution: Repair UPX magic, compare with core dump to find corrupted bytes, recover custom XTEA delta, and decrypt flag.
$ ls tags/ techniques/
state_machineupxsigillsignal_handlerstripped_binaryanti_analysisxteaucontextobfuscated_additionstatic_linkedcore_dumpcorrupted_magic
upx_magic_repairsigill_signal_handler_reversingobfuscated_arithmetic_identificationcore_dump_diffingxtea_decryption_custom_deltastate_machine_analysis
🔒
Permission denied (requires tier.pro)
Sign in to access full writeups
Create a free account with GitHub, then upgrade to Pro.
$ssh [email protected]