alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Void Rabisu Related Loader Activity (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"https|3a 2f 2f|"; startswith; fast_pattern; http.protocol; content:!"HTTP/"; http.header_names; content:!"Referer"; reference:url,www.trendmicro.com/en_us/research/23/j/void-rabisu-targets-female-leaders-with-new-romcom-variant.html; classtype:trojan-activity; sid:2049651; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_12_12, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_12_12; target:src_ip;)