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/
upx_magic_repairsigill_signal_handler_reversingobfuscated_arithmetic_identificationcore_dump_diffingxtea_decryption_custom_deltastate_machine_analysis

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