artif: add binfmt_misc artifact #409
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The Linux binfmt_misc may cause privilege escalation.
References:
https://dfir.ch/posts/today_i_learned_binfmt_misc/
https://www.sentinelone.com/blog/shadow-suid-for-privilege-persistence-part-1/
https://www.sentinelone.com/blog/shadow-suid-privilege-persistence-part-2/