alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE UNK NSFWBot C2 Additional Time Request"; flow:established,to_client; flowbits:isset,ET.UNK.NSFWBOT; http.response_body; bsize:<20; content:"|7b 22|extra|5f|time|22 3a|"; startswith; fast_pattern; pcre:"/\d{1,4}\x7d$/R"; threshold:type limit,count 1,seconds 300,track by_src; classtype:command-and-control; sid:2061777; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state plaintext, created_at 2025_04_21, deployment Perimeter, confidence High, signature_severity Critical, tag c2, updated_at 2025_04_21, mitre_tactic_id TA0011, mitre_tactic_name Command_And_Control, mitre_technique_id T1071, mitre_technique_name Application_Layer_Protocol; target:dest_ip;)