alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Downeks Checkin 2"; flow:to_server,established; urilen:>107; http.method; content:"GET"; http.uri; content:"/setup/"; fast_pattern; pcre:"/\/setup\/[a-zA-Z0-9!-]{100,}$/"; http.header; content:"Host|3a|"; depth:5; http.header_names; content:!"User-Agent|0d 0a|"; content:!"Accept"; content:!"Referer|0d 0a|"; reference:url,pwc.blogs.com/cyber_security_updates/2015/04/attacks-against-israeli-palestinian-interests.html; classtype:command-and-control; sid:2021029; rev:4; metadata:created_at 2015_04_29, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_09_30;)