alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Suspected Bumblebee Loader Activity"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".php"; endswith; http.user_agent; content:"PindOS"; bsize:6; fast_pattern; http.header_names; content:!"Referer"; reference:md5,c56f106025e1853958f0745516c0b88f; reference:url,www.deepinstinct.com/blog/pindos-new-javascript-dropper-delivering-bumblebee-and-icedid; classtype:trojan-activity; sid:2048933; rev:1; metadata:attack_target Client_Endpoint, created_at 2023_10_30, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_10_30, reviewed_at 2023_10_30; target:src_ip;)