alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE [TGI] Cobalt Strike Malleable C2 Response (YouTube Profile)"; flow:established,to_client; http.server; content:"Frontend Proxy"; endswith; http.cookie; content:"YSC=LT4ZGGSgKoE|3b|"; startswith; fast_pattern; http.header_names; content:"|0d 0a|Server|0d 0a|Set-Cookie|0d 0a|"; reference:md5,69c6e302cc4394cae7ed8c6f7b288e92; reference:url,attack.mitre.org/groups/G0080/; classtype:command-and-control; sid:2028590; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_09_17, deployment Perimeter, malware_family Cobalt_Strike, confidence Medium, signature_severity Major, updated_at 2024_01_24, reviewed_at 2024_03_25, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1001, mitre_technique_name Data_Obfuscation;)