alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE MalDoc Request for Payload (TA505 Related)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".tmp"; endswith; http.host; pcre:"/^\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/"; http.request_line; content:".tmp|20|HTTP/1."; fast_pattern; http.header_names; content:"|0d 0a|Host|0d 0a|Cache-Control|0d 0a 0d 0a|"; startswith; classtype:trojan-activity; sid:2027143; rev:7; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_04_02, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2024_04_04;)