alert tcp $EXTERNAL_NET any -> $HOME_NET [135,139,445,1024:2048] (msg:"ET SCAN DCERPC rpcmgmt ifids Unauthenticated BIND"; flow:established,to_server; content:"|05|"; content:"|80 bd a8 af 8a 7d c9 11 be f4 08 00 2b 10 29 89|"; distance:31; reference:url,www.symantec.com/avcenter/reference/Vista_Network_Attack_Surface_RTM.pdf; reference:url,www.blackhat.com/presentations/win-usa-04/bh-win-04-seki-up2.pdf; reference:url,seclists.org/fulldisclosure/2003/Aug/0432.html; classtype:attempted-recon; sid:2009832; rev:3; metadata:created_at 2010_07_30, confidence High, signature_severity Minor, updated_at 2019_07_26;)