What April What April are you working from??
Don't want to sound too negative - but:
"Conficker (aka Downadup) infects a Windows system by either exploiting systems unprotected against the MS08-067 vulnerability patched by Microsoft back in April"
"Thursday, October 23, 2008 10:33 AM by MSRCTEAM
The MS08 sort of gives it away - which April were you working from??