fail2ban/config/filter.d/monit.conf

# Fail2Ban filter for monit.conf, looks for failed access attempts
#
#

[INCLUDES]

# Read common prefixes. If any customizations available -- read them from
# common.local
before = common.conf

# [DEFAULT]
# logtype = short

[Definition]

_daemon = monit

_prefix = Warning|HttpRequest

# Regexp for previous (accessing monit httpd) and new (access denied) versions
failregex = ^%(__prefix_line)s(?:error\s*:\s+)?(?:%(_prefix)s):\s+(?:access denied\s+--\s+)?[Cc]lient '?<HOST>'?(?:\s+supplied|\s*:)\s+(?:unknown user '<F-ALT_USER>[^']+</F-ALT_USER>'|wrong password for user '<F-USER>[^']*</F-USER>'|empty password)

# Ignore login with empty user (first connect, no user specified)
# ignoreregex = %(__prefix_line)s\w+: access denied -- client <HOST>: (?:unknown user '')
ignoreregex =