spam registrations

[p@ndu]

Hi all

i my forum daily i am getting so many spam registrations with these type of usernames

hieucontn1, hieucontn3, hieucontn4, hieuprotn1, hieuprotn2

i have installed this mod also "vbStopForumSpam"

but getting these type of registrations daily getting them from different ips

if i ban those ips they are registering from another ips


some help help me to stop these type of registrations

Thank You

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