alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Kuluoz/Asprox Activity"; flow:established,to_server; flowbits:set,ET.Kuluoz; http.method; content:"POST"; http.uri; pcre:"/^\/(?:[A-Fa-f0-9]+|index\.php)$/"; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; http.request_body; content:"|80 00 00 00|"; startswith; reference:md5,a3e0f51356d48124fba25485d1871b28; reference:url,www.trendmicro.com/cloud-content/us/pdfs/security-intelligence/white-papers/wp-asprox-reborn.pdf; reference:url,blog.fortinet.com/post/changes-in-the-asprox-botnet; classtype:trojan-activity; sid:2017895; rev:11; metadata:created_at 2013_12_24, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_30;)