alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Cobalt Strike Malleable C2 (TrevorForget Profile)"; flow:established,to_server; http.request_line; content:"GET /us/ky/louisville/312-s-fourth-st.html HTTP/1.1"; bsize:51; fast_pattern; http.cookie; bsize:171; pcre:"/^[a-zA-Z0-9\/+_-]{171}$/"; http.referer; content:"https://locations.smashburger.com/us/ky/louisville.html"; bsize:55; reference:md5,d2c8f1a8b5fc9bf4fe8bde43e88f04a0; classtype:command-and-control; sid:2032754; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_11_20, deployment Perimeter, deployment SSLDecrypt, malware_family Cobalt_Strike, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2020_11_20, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)