alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Likely Arid Viper APT Advtravel Campaign POST"; flow:to_server,established; http.method; content:"POST"; http.uri; content:"/index.php/customer/do_it"; fast_pattern; http.user_agent; content:"Internet"; bsize:8; http.header_names; content:!"Referer|0d 0a|"; http.request_body; content:"pn="; content:"&data="; reference:url,www.trendmicro.com/cloud-content/us/pdfs/security-intelligence/white-papers/wp-operation-arid-viper.pdf; classtype:targeted-activity; sid:2020433; rev:5; metadata:created_at 2015_02_17, confidence Medium, signature_severity Major, updated_at 2020_05_15;)