alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Sinowal/Torpig Checkin"; flow:to_server,established; content:"GET"; http_method; content:"idcomp="; http_uri; content:"MyValue="; http_uri; content:"&load1="; http_uri; content:"&hist=downloaded_user_"; http_uri; pcre:"/MyValue=[a-f0-9]{32}/Ui"; classtype:command-and-control; sid:2010267; rev:5; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2019_07_26;)