alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Evil PDF Retrieving Emotet Payload"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/?InvoiceType=Regular&date="; fast_pattern; pcre:"/\/[A-Za-z0-9]{2,8}[-_][a-zA-Z0-9-_]+\/\?InvoiceType=Regular&date=[0-9-_]+$/"; reference:md5,136dca58d0a0802c7abfce8dce4b7526; classtype:trojan-activity; sid:2035060; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_03_28, deployment Perimeter, malware_family Emotet, performance_impact Moderate, confidence High, signature_severity Major, updated_at 2020_08_28;)