alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE linux.backdoor.wordpressexploit.1 JS backdoor retrieval"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/lone.js?zoneid="; startswith; fast_pattern; content:"&utm_c="; distance:0; content:"&mro="; distance:0; reference:md5,7821144982b6c9564f4d2ca990b928b4; reference:url,vms.drweb.com/virus/?i=25604695; classtype:trojan-activity; sid:2043194; rev:1; metadata:affected_product Wordpress, affected_product Wordpress_Plugins, attack_target Client_Endpoint, created_at 2023_01_03, deployment Perimeter, deployment SSLDecrypt, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_01_03;)