You refer to Conficker.D - is this different and newer than Conficker.C? I was under the impression <a href="http://tweakandtune.blogspot.com/2009/03/will-internet-survive-conficker.html">Conficker.C will attack April 1</a>.

Please clarify if these are the same variant, as well as whether any analysis of the few successful Conficker.B communications has been done.