alert http $HOME_NET any -> 178.16.53.7 any (msg:"ET MALWARE Executable Downloaded From Common Payload Delivery Host (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; pcre:"/\x2e(?:dll|exe)$/"; http.header_names; content:!"|0d 0a|referer|0d 0a|"; nocase; http.host; bsize:11; content:"178.16.53.7"; startswith; fast_pattern; classtype:trojan-activity; sid:2069055; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, tls_state TLSDecrypt, created_at 2026_04_28, deployment Perimeter, deployment SSLDecrypt, confidence High, signature_severity Major, updated_at 2026_04_29; target:src_ip;)