Linux reverse engineering tools
LIEF (library for analysis of executable formats)
LIEF is a library to analyze executable formats like ELF, MachO, and PE. It can be used during reverse engineering, binary analysis, and malware research.
radare2 (reverse engineering tool and binary analysis)
radare2 is a tool to perform reverse engineering on files of all types. It can be used to analyze malware, firmware, or any other type of binary files.