alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET WEB_CLIENT Volexity - JS Sniffer Data Theft Beacon Detected"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php?"; content:"=WyJ1cmw"; distance:0; fast_pattern; reference:url,www.volexity.com/blog/2018/07/19/js-sniffer-e-commerce-data-theft-made-easy/; classtype:trojan-activity; sid:2025880; rev:3; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_07_23, deployment Perimeter, signature_severity Major, tag Stealer, tag c2, updated_at 2020_08_25, mitre_tactic_id TA0010, mitre_tactic_name Exfiltration, mitre_technique_id T1041, mitre_technique_name Exfiltration_Over_C2_Channel;)