alert http $HOME_NET any -> $EXTERNAL_NET any (
msg:"ET MALWARE MagikPOS Downloader Checkin";
flow:established,to_server;
http.method;
content:"POST";
http.uri;
content:".php";
http.request_body;
content:"data=domain%253a"; depth:16; fast_pattern;
http.header_names;
content:!"User-Agent|0d 0a|";
content:!"Accept";
content:!"Referer|0d 0a|";
reference:md5,121c1008d54e91db66feaf67b3d4084e;
reference:url,blog.trendmicro.com/trendlabs-security-intelligence/majikpos-combines-pos-malware-and-rats/;
classtype:command-and-control;
sid:2024066; rev:2;
metadata:affected_product Windows_XP_Vista_7_8_10_Server_32_64_Bit, attack_target Client_and_Server, created_at 2017_03_16, deployment Perimeter, malware_family MagikPOS, performance_impact Low, confidence High, signature_severity Major, updated_at 2020_08_04;
)