Since my suricate is completely silent and I have no alerts, I took a look at the rules. Now I see that some rules are emtpy:
-rw-r----- 1 root wheel 58 Mar 20 09:47 botcc.portgrouped.rules
-rw-r----- 1 root wheel 58 Mar 20 09:47 botcc.rules
-rw-r----- 1 root wheel 58 Mar 20 09:47 drop.rules
-rw-r----- 1 root wheel 58 Mar 20 09:47 dshield.rules
-rw-r----- 1 root wheel 58 Mar 20 09:47 tor.rules
The only content is a 58 bytes hash-string like:
#@opnsense_download_hash:8885524e8c925b9882c4602c9e517e2a
The curious thing is the tor ruleset. Before I upgraded to ET Pro telemetry edition and used the free rules, I got tor alerts. So I assume it has not been that empty before.
I had the same problem using the Telemetry edition and got following answer from deciso:
"You enabled only some rulesets that have currently no active rules.
The rulesets that contain the most rules are currently the trojans (by far) and malware rules (incl. mobile)
Rulesets that are empty today are:
Botcc
Innapropriate
Pop3
Ciarmy
Compromised
Drop
Dshield
Some of them are old categories, where rules have moved to new categories and are kept for compatibility reasons.
Of course new rules can be added to currently empty sets, so including them is just fine"