I need a plugin that will automatically delete or prevent posts that match regex's. This would be an extremely powerful way to combat randomized spam.

Example regex:
b.a.d s.p.a.m.m.e.r

This would automatically delete the following posts:
"B-A-D S-P-A-M-M-E-R"
"B A D S P A M M E R"
"B a D S p A m M e R"
"please visit -> B A D S P A M M E R"
"B A D S P A M M E R . S P A M"