alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Aveo C2 Request"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/index.php?id="; startswith; fast_pattern; content:"&1="; distance:0; content:!"&2="; distance:0; http.header_names; to_lowercase; content:!"|0d 0a|referer|0d 0a|"; reference:md5,ae2b5bd70945b1622fb27496ec9e15fe; reference:url,researchcenter.paloaltonetworks.com/2016/08/unit42-aveo-malware-family-targets-japanese-speaking-users/; classtype:command-and-control; sid:2023078; rev:6; metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_Endpoint, created_at 2016_08_18, deployment Perimeter, malware_family Aveo, malware_family FormerFirstRAT, performance_impact Low, signature_severity Major, updated_at 2024_05_02;)