alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET EXPLOIT_KIT ErrTraffic Beer Cluster Checkin"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/api.php?"; fast_pattern; pcre:"/^[a-z]{1}=[a-z0-9]{48}/Ri"; http.host; content:".beer"; endswith; reference:url,sekoia.com/blog/unveiling-errtraffic-inside-a-growing-clickfix-malware-distribution-framework; classtype:exploit-kit; sid:2070081; rev:1; metadata:attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_06_26, deployment Perimeter, deployment SSLDecrypt, malware_family ErrTraffic, performance_impact Low, confidence High, signature_severity Major, tag compromised_website, updated_at 2026_06_26;)