alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET HUNTING Set flow on bmp file get"; flow:established,to_server; flowbits:set,ET.bmp_seen; flowbits:noalert; http.method; content:"GET"; http.uri; content:".bmp"; fast_pattern; endswith; classtype:not-suspicious; sid:2009083; rev:10; metadata:created_at 2010_07_30, performance_impact Significant, confidence Medium, signature_severity Unknown, updated_at 2024_04_11;)