alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET INFO Bluetrait Initial Check-in - Server Response"; flow:established,to_client; flowbits:isset,ET.Bluetrait.Initial.Checkin; http.stat_code; content:"200"; http.cookie; content:"sts_sid|3d|"; content:"bluetrait.io|3b 20|secure|3b 20|HttpOnly"; fast_pattern; endswith; http.response_body; content:"|7b 22|success|22 3a|1|2c 22|id|22 3a 22|"; startswith; content:"|22 2c 22|uuid|22 3a 22|"; within:20; pcre:"/^[0-9a-f]{8}-(?:[0-9a-f]{4}-){3}[0-9a-f]{12}/R"; content:"|22 2c 22|message|22 3a 22|"; within:60; reference:url,bluetrait.io; classtype:misc-activity; sid:2057026; rev:1; metadata:affected_product Bluetrait_RMM, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2024_10_23, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Informational, updated_at 2024_10_23; target:dest_ip;)