UnrealIRCd Forums

Posted: **Thu Jul 06, 2023 12:10 pm**

Spambots are often use hidden unicode characters to bypass hardcoded keyword spamfilter. I noticed unrealircd has a nice in build spamfilter feature. But I've trouble to get it working with regex and unicode characters.

But I'm getting error:

Code: Select all

/SPAMFILTER add -regex cpNn gline - spam TE\x{200B}ST
Error in regex 'TE\x{200B}ST': character code point value in \x{} or \o{} is too large (at character #9)

Regex is valid: https://regex101.com/r/iUSZCl/1

How I can solve that?

Posted: **Thu Jul 06, 2023 12:23 pm**

Since UnrealIRCd 6.0.7 you can use this setting to make Spamfilter UTF8 aware, it will be default in next release (6.1.2):

Code: Select all

set { spamfilter { utf8 yes; } }

See https://github.com/unrealircd/unrealirc ... ncements-3

Posted: **Thu Jul 06, 2023 12:38 pm**

Thanks. Then I have to upgrade unrealircd first.

UnrealIRCd Forums

How to use unicode chars in spamfilter regex?

How to use unicode chars in spamfilter regex?

Re: How to use unicode chars in spamfilter regex?

Re: How to use unicode chars in spamfilter regex?