alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET USER_AGENTS Suspicious User-Agent (RestoroMainExe)"; flow:to_server,established; http.user_agent; content:"RestoroMainExe"; startswith; fast_pattern; threshold:type limit, count 1, seconds 600, track by_src; reference:md5,39fef85fe114d96dde745b8ce0659b2e; classtype:trojan-activity; sid:2038702; rev:2; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2022_08_31, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2022_10_10, reviewed_at 2024_05_08;)