alert http1 $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win32/Cryptbotv2 CnC Activity (POST) M2"; flow:established,to_server; http.method; content:"POST"; http.uri; content:".php"; http.request_body; content:"form-data|3b 20|name=|22|files|5b 5d 22 3b 20|"; fast_pattern; http.header_names; content:"|0d 0a|Content-Type|0d 0a|Host|0d 0a|Content-Length|0d 0a|"; startswith; content:!"|0d 0a|Referer|0d 0a|"; classtype:trojan-activity; sid:2045231; rev:4; metadata:created_at 2023_04_28, malware_family Win32_Cryptbotv2, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_04_03;)