alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Willowcoin Cryptocurrency UA Observed"; flow:established,to_server; http.user_agent; content:"WillowCoin"; fast_pattern; startswith; classtype:misc-activity; sid:2029772; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_03_31, deployment Perimeter, confidence High, signature_severity Minor, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08;)