alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Possible JS Credit Card Stealer Inbound"; flow:established,from_server; http.stat_code; content:"200"; file.data; content:"Month|3a 20|"; content:"Year|3a 20|"; content:"CVV|3a 20|"; content:"Holder|27 5d 20|===|20|undefined|20 7c 7c 20 24|"; fast_pattern; content:"CVV|20|!==|20|null|20|&&"; distance:0; content:".SendData|28 29|"; classtype:trojan-activity; sid:2027344; rev:2; metadata:attack_target Client_Endpoint, created_at 2019_05_09, deployment Perimeter, performance_impact Low, confidence Medium, signature_severity Major, updated_at 2020_08_28;)