alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious UA Observed (Ave, Caesar!)"; flow:established,to_server; http.user_agent; content:"Ave,|20|Caesar!"; depth:12; fast_pattern; endswith; classtype:bad-unknown; sid:2027648; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, created_at 2019_06_28, deployment Perimeter, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_09_17;)