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Libhijack - FreeBSD Code Injection Swiss Army Knife

Libhijack is a tool that enables easy injection of arbitrary code during runtime. Injection is done into newly-created anonymous memory mappings, providing stealth. An API is provided for hooking the PLT/GOT, hence the "hijack" part of libhijack.

NOTE: libhijack is undergoing a major revamp. Please do not consider the ABI or API as stable for the moment.

Supported Architectures

  • amd64
  • arm64


  • FreeBSD source code in /usr/src matching the system libhijack is to target.

Building libhijack

# make depend all install