alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET DELETED rcprograms"; flow:to_server,established; content:"update.rcprograms.com"; nocase; http_header; reference:url,sarc.com/avcenter/venc/data/adware.rcprograms.html; classtype:trojan-activity; sid:2000024; rev:9; metadata:created_at 2010_07_30, signature_severity Unknown, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)