alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO Executable Requested from Evernote Link M2 (GET)"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"LmV4Z"; http.host; bsize:23; content:"t.mail-svc.evernote.com"; fast_pattern; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; classtype:bad-unknown; sid:2046749; rev:3; metadata:attack_target Client_Endpoint, created_at 2023_07_07, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_30; target:src_ip;)