/etc/logcheck/ignore.d.paranoid/clamav-daemon is in clamav-daemon 0.99.4+addedllvm-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 | ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: SelfCheck: Database status OK\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: Reading databases from .*$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: Database correctly reloaded \([0-9]+ signatures\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: SIGHUP caught: re-opening log file\.$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: No stats for Database check - forcing reload$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ clamd\[[0-9]+\]: SelfCheck: Database modification detected\. Forcing reload\.$
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