alert http $HOME_NET any -> $EXTERNAL_NET any (msg:"ET MALWARE Screenblaze SCR Related Backdoor - GET"; flow:established,to_server; http.method; content:"GET"; nocase; http.uri; content:".php?id="; nocase; content:"&serial="; nocase; content:"ver="; nocase; http.user_agent; content:"WinInetHTTP"; depth:11; endswith; nocase; reference:md5,0bcdc9c2e2102f36f594b9e727dae3c7; reference:url,home.mcafee.com/VirusInfo/VirusProfile.aspx?key=207702#none; reference:url,vil.nai.com/vil/content/v_156782.htm; reference:url,www.spywaredetector.net/spyware_encyclopedia/Backdoor.Prosti.htm; classtype:trojan-activity; sid:2009804; rev:9; metadata:created_at 2010_07_30, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2020_10_13;)