alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE PoetRAT Upload via HTTP"; flow:established,to_server; http.method; content:"POST"; http.header_names; content:"|0d 0a|Max-Downloads|0d 0a|Max-Days|0d 0a|"; fast_pattern; reference:url,blog.talosintelligence.com/2020/04/poetrat-covid-19-lures.html; classtype:command-and-control; sid:2031002; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_10_12, deployment Perimeter, malware_family PoetRat, performance_impact Moderate, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_12;)