The generated patterns, can be prevent tricky logins, like the look like realistic admin names (Admin, *aDmin*, @dmin, suparAdmin ) etc.

You can add these patterns in your TeamSpeak3 servers Ban List (CTRL+SHIFT+B) / + ADD / REGULAR EXPRESSION.

Default: Banhelper->index();

Translate your costume STRING: Banhelper->index('yourStringToTranslateTS3regexLanguage');

http:https://sandbox.onlinephpfunctions.com/code/03ce0fefca9c8945d3e3e318b01a6df6e18dd228

Allow only normal characters, a-Z 0-9 space - _ ( )
.*[^A-Za-z0-9\s_-\(\)]+

Disable [] characters .*[\[\]].*

- recommend patterns by me -
.*[^A-Za-z0-9\s_-\(\)]+
.*[\[\]].*
.*[aA4@][dD][mM][iI1][nN].*
.*[sS][eE3][rR][vV][eE3][rR].*
.*[mM][oO0][dD][eE3][rR][aA4@][tT][oO0][rR].*
.*[sS][yY][sS][tT][eE3][mM].*
.*[oO0][wW][nN][eE3][rR].*
.*[tT][eE3][aA4@][mM][sS][pP][eE3][aA4@][kK][uU][sS][eE3][rR].*

- generated costume value: coookiemonster -
.*[cC][oO0][oO0][oO0][kK][iI1][eE3][mM][oO0][nN][sS][tT][eE3][rR].*

Save Yatqa_banlist.txt

Login to your server / ban list / Import / open the downloaded file.