alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Observed AHK Downloader Request Structure"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/traff.php"; endswith; fast_pattern; http.user_agent; content:"AutoHotkey"; bsize:10; http.header_names; content:"|0d 0a|User-Agent|0d 0a|Connection|0d 0a|Cache-Control|0d 0a|Host|0d 0a 0d 0a|"; classtype:trojan-activity; sid:2028956; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2019_11_08, deployment Perimeter, performance_impact Moderate, confidence High, signature_severity Minor, tag Downloader, updated_at 2019_11_08;)