alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Upatre User-Agent"; flow:established,to_server; http.user_agent; content:"onlymacros"; startswith; endswith; reference:md5,b4ddb47165bf5362f0b33ed907b1ee08; classtype:command-and-control; sid:2030818; rev:3; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2020_08_31, deployment Perimeter, confidence High, signature_severity Major, tag Upatre, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_13;)