I have updated Securitycheck and Securitycheck Pro to version 3.4.2 to fix some bugs and add improvements:
+ Database update until Sep 20 2021 (1 new Joomla core added) (both versions)
+ Improvements in backend protection (thanks for reporting this Klaas!) (only Pro version)
To avoid add redirection rules if they are applied to the current .htaccess.
+ Improvements in the malware scanner (only Pro version)
To avoid false positives detecting encoded content.
+ Fixed bugs adding ips to lists from logs (only Pro version)
Ips were added to the old storage table instead the new one if we added ips to any lists from 'View logs' option.
+ Fixed bug filtering ips in Lists (only Pro version)
Dynamic blacklist ips were not properly filtered.
+ Improvements in firewall filters (thanks for your help Erik!) (only Pro version)
Added some new rules to the 'line comments' filter to detect some attacks.
+ Fixed compatibility issues with Joomla 4 (both versions)
+ New language available: Afrikaans (af-ZA) (thanks for your effort Chris!)
+ Fixed minor bug in Waf Config in Joomla 3.10 (thanks for reporting this Łukasz!)