alert tcp $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Linux/HiddenWasp CnC Request (set)"; flow:established,to_server; flowbits:set,ET.Linux.HiddenWasp; flowbits:noalert; content:"|75 63 65 73 00 01|"; depth:6; fast_pattern; reference:url,www.intezer.com/blog-hiddenwasp-malware-targeting-linux-systems/; reference:md5,5b134e0a1a89a6c85f13e08e82ea35c3; classtype:command-and-control; sid:2027395; rev:3; metadata:affected_product Linux, attack_target Client_Endpoint, created_at 2019_05_29, deployment Perimeter, performance_impact Significant, confidence Medium, signature_severity Major, updated_at 2019_07_26;)