Forum Discussion
Antonio3
Altocumulus
Mar 27, 2026block a specific user
Hi everyone, Is it possible to create a signature to block a specific user from authenticating to a web portal? thanks Antonio
Antonio3
Altocumulus
Mar 30, 2026Thanks for your reply.
I created a new signature as shown in the attached image.
This happens: it blocks all authentication requests containing the word admin, for example:
user:admin
password:admin
user:administrator
password:pippo
user:pippo
password:admin
user:adminarial
password:pippo
I'd like it to block only when the "admin" username is entered.
Thanks
- waseem-alomariMar 31, 2026
Nimbostratus
I guess that you need to change the ( Matched Criteria ) from contains string to something more accurate from the available options , or to match on regular expressions which will give only " admin "
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