alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED MacDefender OS X Fake AV Scareware"; flow:established,to_server; content:"GET"; http_method; content:"affid="; http_uri; content:"data="; http_uri; content:"v="; http_uri; content:"User-Agent|3a 20|MacShield"; http_header; reference:url,blog.spiderlabs.com/2011/06/analysis-and-evolution-of-macdefender-os-x-fake-av-scareware.html; classtype:trojan-activity; sid:2012958; rev:5; metadata:created_at 2011_06_09, signature_severity Unknown, updated_at 2019_07_26;)