alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE NimPlant Result Activity (POST)"; flow:established,to_server; urilen:7; http.method; content:"POST"; http.uri; content:"/result"; http.accept_enc; content:"gzip"; bsize:4; http.header; content:"|0d 0a|X-Identifier|3a 20|"; pcre:"/^[a-zA-Z]{8}\r\n/R"; http.request_body; content:"|7b 22|data|22 3a 22|"; startswith; http.header_names; content:"|0d 0a|User-Agent|0d 0a|X-Identifier|0d 0a|Content-Length|0d 0a|Host|0d 0a 0d 0a|"; fast_pattern; content:!"Referer"; reference:url,github.com/chvancooten/NimPlant; classtype:trojan-activity; sid:2044352; rev:1; metadata:created_at 2023_02_27, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2023_02_27;)