alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Predator Variant Dropper Activity"; flow:established,to_server; http.request_line; content:"GET|20|/FDpb|20|HTTP/1.1"; fast_pattern; http.header_names; content:!"Referer"; reference:md5,3679a900a8895e242e97e9d54cd2f5fa; reference:url,us-cert.cisa.gov/ncas/analysis-reports/ar20-268a; reference:url,twitter.com/craiu/status/1309449368559378432; classtype:trojan-activity; sid:2030908; rev:1; metadata:attack_target Client_Endpoint, created_at 2020_09_25, deployment Perimeter, malware_family Win32_Predator, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_25;)