Rule History

alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Win64/Agent.NL Variant CnC Activity"; flow:established,to_server; http.method; content:"POST"; http.uri; content:"/getconfig.php?r="; fast_pattern; pcre:"/^[0-9]+$/R"; http.content_type; content:"application/json"; bsize:16; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; content:!"|0d 0a|User-Agent|0d 0a|"; http.request_body; content:"|7b 22|data|22 3a 22|"; startswith; content:!"|3a|"; distance:0; reference:md5,d37bb6fc88cd71f86a3d4211a064d80b; classtype:command-and-control; sid:2034580; rev:1; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2021_12_03, deployment Perimeter, malware_family Win64_Agent_NL, performance_impact Low, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_12_03;)