alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE - Possible Zeus/Perkesh (.bin) configuration download"; flow:established,to_server; http.method; content:"GET"; http.uri; content:".bin"; endswith; pcre:"/\/[0-9A-Z]+\/[0-9A-Z]+\.bin$/i"; http.user_agent; content:"Mozilla/4.0 (compatible|3b 20|MSIE"; startswith; http.accept; bsize:3; content:"*/*"; http.header_names; content:!"|0d 0a|Referer|0d 0a|"; http.host; content:!"downloadfree.avg.com"; content:!"toolbar.live.com"; reference:url,zeustracker.abuse.ch; classtype:trojan-activity; sid:2010348; rev:7; metadata:created_at 2010_07_30, confidence Medium, signature_severity Major, updated_at 2024_02_06;)