alert http $EXTERNAL_NET any -> $HTTP_SERVERS any (msg:"ET WEB_SERVER ImageMagick CVE-2016-3715 File Deletion Inbound (ephermeral:+ mvg) M1"; flow:established,to_server; http.request_body; content:"viewbox|20|"; nocase; fast_pattern; content:"ephemeral"; nocase; pcre:"/^\s*\x3a\s*[.\x2f]/Ri"; reference:url,openwall.com/lists/oss-security/2016/05/03/18; classtype:web-application-attack; sid:2022792; rev:6; metadata:affected_product ImageMagick, tls_state TLSDecrypt, created_at 2016_05_04, cve CVE_2016_3715, deployment Perimeter, deployment Internal, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag CISA_KEV, updated_at 2026_11_03, mitre_tactic_id TA0001, mitre_tactic_name Initial_Access, mitre_technique_id T1190, mitre_technique_name Exploit_Public_Facing_Application; target:dest_ip;)