Parse ejabberd 17.06 output

E.g.:
2017-07-29 08:24:04.773 [info] <0.6668.0>@ejabberd_c2s:handle_auth_failure:433 (http_bind|ejabberd_bosh) Failed c2s PLAIN authentication for test@example.ch from ::FFFF:192.0.2.3: Invalid username or password

config/filter.d/ejabberd-auth.conf

@@ -17,7 +17,7 @@
 # Values:  TEXT
 #
 failregex = ^=INFO REPORT====  ===\nI\(<0\.\d+\.0>:ejabberd_c2s:\d+\) : \([^)]+\) Failed authentication for \S+ from (?:IP )?<HOST>(?: \({{(?:\d+,){3}\d+},\d+}\))?$
-            ^(?:\.\d+)? \[info\] <0\.\d+\.\d>@ejabberd_c2s:\w+:\d+ \([^\)]+\) Failed authentication for \S+ from (?:IP )?<HOST>$
+            ^(?:\.\d+)? \[info\] <0\.\d+\.\d>@ejabberd_c2s:\w+:\d+ \([^\)]+\) Failed (?:c2s \w+ )?authentication for \S+ from (?:IP )?(?:::FFFF:)?<HOST>(: .*)?$
 
 # Option:  ignoreregex
 # Notes.:  regex to ignore. If this regex matches, the line is ignored.