alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET MALWARE CenterPOS Load Plugins"; flow:to_client,established; flowbits:isset,ET.centerpos; http.stat_code; content:"200"; http.content_type; content:"text/html"; startswith; file.data; content:"|7c|loadplug|20|"; fast_pattern; reference:md5,0e278436fb49f9ab0d1a3da792cfb0c3; reference:url,www.fireeye.com/blog/threat-research/2016/01/centerpos_an_evolvi.html; classtype:trojan-activity; sid:2022471; rev:3; metadata:created_at 2016_01_29, confidence High, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_06_18;)