[unisog] sypware control through black-hole DNS

Michael Holstein michael.holstein at csuohio.edu
Wed Feb 1 21:31:33 GMT 2006

> There have been reports, though I don't recall seeing this recently,
> where malware will not use the locally configured recursive server(s).
> In that case, if you are allowing DNS queries to the outside world,
> then it will bypass that solution.

For a while there, various *bot variants were using dynamic DNS to 
resolve their DNS servers .. making the electronic "whack-a-mole" game 
we all play with the ircd exponentially more complicated.


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