A Zeek ELF Package

This package implements:

• ELF

TLDR!

If you have zkg and you have already run...

zkg autoconfig

... then you can install this package as so:

sudo zkg install zeek-elf

Now in any Zeek script, just load the plugin and it "just works":

@load Zeek/ELF

New events for this plugin are found in events.bif.

Building and Installing

This plugin can be built with:

./configure --zeek-dist=/your/zeek/src/dir
make
sudo make install

Using ELF

The testing pcap file:

https://github.com/corelight/zeek-elf/blob/master/tests/Traces/all_executables.pcap

Binaries in this pcap were pulled from:

https://github.com/JonathanSalwan/binary-samples

Once installed, this plugin can be loaded with the following Zeek script:

@load Zeek/ELF

event file_elf(f: fa_file)
    {
    print "ELF";
    }

event file_elf_header(f: fa_file, m: Zeek::ELFHeader)
    {
    print "====";
    print "ELF HEADER";
    print m$signature;
    print "====";
    }

The output should look like this:

% zeek -r pcaps/all_binaries.pcap -C elf.zeek
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====
ELF
====
ELF HEADER
2135247942
====