alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Dyreza RAT Checkin 3"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"_W"; content:"|2e|"; distance:6; within:1; content:"/replace/"; fast_pattern; http.header_names; content:!"Accept|0d 0a|"; content:!"Connection|0d 0a|"; content:!"Referer|0d 0a|"; reference:md5,4d1d43789e038c6a03c07083ca0b0809; reference:url,phishme.com/project-dyre-new-rat-slurps-bank-credentials-bypasses-ssl/; classtype:command-and-control; sid:2018749; rev:10; metadata:created_at 2014_07_21, deprecation_reason Age, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2024_03_08, reviewed_at 2024_03_08;)