MyBB Community Forums - mybb auto post

Hi guys my forum recently has been bombarded by Russian spammers and some of them post like 60 to 70 thread! I am wondering if there is a way to auto post threads on Mybb forums. I mean something like social media bookmarking tools, and how to prevent someone to do such a crazy thing?
Thanks

spam bots target all types of forums. see spam prevention plugins

Use spamalyser best for stop bot posting
http://mybbhacks.zingaburga.com/showthread.php?tid=1006

(2013-08-21, 10:12 AM)New2mybb Wrote: [ -> ]Use spamalyser best for stop bot posting
http://mybbhacks.zingaburga.com/showthread.php?tid=1006

Does it block spambots registration?

^ I prefer using signup questions plugin with own set of questions to prevent spam bot registrations

(2013-08-21, 10:29 AM).m. Wrote: [ -> ]^ I prefer using signup questions plugin with own set of questions to prevent spam bot registrations

Could you tell me please if this plugin has some bugs or can cause some problems?

^ please see the reviews page of the plugin

What do you think about Registration Security Question v1.2 http://community.mybb.com/thread-83250.html

^ well both the plugins are for the same purpose. Registration Security Question is very popular, and
some people (including a few fine coders) have reported that spam bots are able to bypass this plugin.
so far I have not seen any report saying that signup questions is not working as expected.

(2013-08-21, 11:06 AM)marcus123 Wrote: [ -> ]What do you think about Registration Security Question v1.2 http://community.mybb.com/thread-83250.html

Very good, I change the questions each month and you can use images too.