hollows_hunter (hasherezade): BSD-2-Clause - https://github.com/hasherezade/hollows_hunter
YARA (VirusTotal): BSD-3-Clause - https://github.com/VirusTotal/yara
signature-base (Neo23x0): Detection Rule License (DRL) 1.1 - keep the rule 'author/reference' metadata; https://github.com/Neo23x0/signature-base
