alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET INFO AutoIt User Agent Executable Request"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".exe"; nocase; endswith; http.user_agent; content:"AutoIt"; depth:6; endswith; fast_pattern; http.header_names; content:!"Referer"; classtype:misc-activity; sid:2019935; rev:8; metadata:created_at 2014_12_15, deployment Perimeter, performance_impact Low, confidence High, signature_severity Informational, tag AutoIt, updated_at 2023_04_20;)