alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET WEB_CLIENT Possible Microsoft Edge Remote Command Execution PoC (CVE-2018-8495)"; flow:established,to_client; file_data; content:"wshfile:"; content:"../../"; within:100; content:"SyncAppvPublishingServer.vbs"; within:200; nocase; fast_pattern; content:"window.onkeydown=e=>"; nocase; distance:0; content:"window.onkeydown=z="; nocase; distance:0; content:"click()"; nocase; distance:0; reference:url,leucosite.com/Microsoft-Edge-RCE/; reference:cve,2018-8495; classtype:attempted-user; sid:2026488; rev:1; metadata:affected_product Web_Browsers, attack_target Client_Endpoint, created_at 2018_10_15, cve CVE_2018_8495, deployment Perimeter, confidence Medium, signature_severity Major, updated_at 2019_07_26;)