alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (ErrCode)"; flow:established,to_server; http.user_agent; content:"ErrCode"; classtype:trojan-activity; sid:2008378; rev:13; metadata:affected_product Any, attack_target Client_Endpoint, created_at 2010_07_30, deployment Perimeter, confidence High, signature_severity Major, tag User_Agent, updated_at 2020_08_13;)