# config reference: system URL
-config reference: bugtraq http://www.securityfocus.com/bid/
-config reference: bid http://www.securityfocus.com/bid/
-config reference: cve http://cve.mitre.org/cgi-bin/cvename.cgi?name=
-#config reference: cve http://cvedetails.com/cve/
-config reference: secunia http://www.secunia.com/advisories/
+#
+# Note: https// used
+##############################
+# Referenced by ET/Open ET/Pro
+##############################
+
+# resolves, works as intended
+config reference: cve https://cve.mitre.org/cgi-bin/cvename.cgi?name=
+config reference: nessus https://www.tenable.com/plugins/nessus/
+config reference: url https://
#whitehats is unfortunately gone
-config reference: arachNIDS http://www.whitehats.com/info/IDS
-
-config reference: McAfee http://vil.nai.com/vil/content/v_
-config reference: nessus http://cgi.nessus.org/plugins/dump.php3?id=
-config reference: url http://
-config reference: et http://doc.emergingthreats.net/
-config reference: etpro http://doc.emergingthreatspro.com/
-config reference: telus http://
+#
+# no longer resolves
+config reference: McAfee https://vil.nai.com/vil/content/v_
+config reference: bid https://www.securityfocus.com/bid/
+config reference: bugtraq https://www.securityfocus.com/bid/
+config reference: md5 https://www.threatexpert.com/report.aspx?md5=
+
+# resolves, but non-useful page
+config reference: secunia https://www.secunia.com/advisories/
+config reference: arachNIDS https://www.whitehats.com/info/IDS
+
+###################################################
+# No longer referenced from ET/Open ET/Pro rulesets
+###################################################
+
+# resolves
+config reference: exploitdb https://www.exploit-db.com/exploits/
+config reference: msft https://technet.microsoft.com/security/bulletin/
+
+# resolves, but non-useful page
+config reference: et https://doc.emergingthreats.net/
+config reference: etpro https://doc.emergingthreatspro.com/
+config reference: telus https://
+
+# no longer resolves
+config reference: xforce http://xforce.iss.net/xforce/xfdb/
config reference: osvdb http://osvdb.org/show/osvdb/
config reference: threatexpert http://www.threatexpert.com/report.aspx?md5=
-config reference: md5 http://www.threatexpert.com/report.aspx?md5=
-config reference: exploitdb http://www.exploit-db.com/exploits/
config reference: openpacket https://www.openpacket.org/capture/grab/
config reference: securitytracker http://securitytracker.com/id?
-config reference: secunia http://secunia.com/advisories/
-config reference: xforce http://xforce.iss.net/xforce/xfdb/
-config reference: msft http://technet.microsoft.com/security/bulletin/