Binary package “logcheck” in ubuntu oracular
check the system log for unusual entries
Logcheck analyses the system log for unuexpected entries that could
indicate problems or security issues.
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Log entries in the system log (produced by systemd-journald, rsyslog
or another system-log-dameon) are checked against a customisable
database of regular expressions (such as that provided by the
logcheck-database package) to identify routine messages: anything
that does not identified as routine is reported to the system
administrator.
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Logcheck was originally part of the Abacus Project of security tools,
but has been rewritten.