alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Malleable C2 JQuery Custom Profile M3"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/jquery-"; startswith; content:".min.js"; endswith; http.header; content:"Accept|3a 20|text/html,application/xhtml+xml,application/xml|3b|q=0.9,*/*|3b|q=0.8|0d 0a|Accept-Language|3a 20|en-US,en|3b|q=0.5|0d 0a|Referer|3a 20|"; startswith; fast_pattern; http.accept_enc; content:"gzip, deflate"; bsize:13; http.header_names; content:"|0d 0a|Accept|0d 0a|Accept-Language|0d 0a|Referer|0d 0a|Accept-Encoding|0d 0a|User-Agent|0d 0a|Host|0d 0a|Connection|0d 0a|Cache-Control|0d 0a 0d 0a|"; reference:md5,4547d3404ceb0436585e11f317eadb7c; classtype:command-and-control; sid:2033008; rev:2; metadata:attack_target Client_Endpoint, created_at 2021_05_21, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2021_05_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)