alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Danabot Associated Activity (GET)"; flow:established,to_server; http.request_line; content:"GET / HTTP/1.1"; http.user_agent; content:"Power Off"; bsize:9; fast_pattern; reference:url,www.zscaler.com/blogs/security-research/spike-danabot-malware-activity; classtype:trojan-activity; sid:2034471; rev:3; metadata:attack_target Client_Endpoint, created_at 2021_11_16, deployment Perimeter, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_04_24;)