alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Mazilla Suspicious User-Agent Jan 15 2015"; flow:established,to_server; http.user_agent; content:"Mazilla/"; startswith; fast_pattern; reference:url,malware-traffic-analysis.net/2015/01/15/index.html; classtype:trojan-activity; sid:2020235; rev:6; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2015_01_21, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2024_04_12;)