What are the ways to get rid of Downadup virus?

Hi, I've tried near all freeware programs nothing helps! Becides I have Norton360 installed. Can anybody help me with this downup infection??!
     Downadup, (the same as Conficker and Kido) very hard to delete manually.
There are different tools - I've tried this: Conficker FastHeal._
     If your system is able to get there, Microsoft's MSRT- Malicious Software Removal Tool
boasts it can remove this and other malware.
For the current (and lengthy) list of malware from Microsoft that the
most recent MSRT can detect & cure, go here:
http://www.microsoft.com/security/malwar...
Includes: Banload; Conficker (aka "Downadup"); Anti-virus 2009; et al
     If you have downloaded & installed the most recent
MSRT from Microsoft (get it today):
Right click the desktop > New> Shortcut; then type in " mrt " (sans quote), a shortcut will be made directly to run the tool.
This will identify known malware, and corrective action taken, but of course can't do anything about "zero day exploits".
Has full UI; quick scan takes 5 minutes; full scan (advisable) 15+ min.
Gives results of scans, checks e-mail, etc.
Very handy set-up.
For download of the MSRT, go here:
http://www.microsoft.com/security/malwar...
On line scan also available.
If connecting is blocked, get another machine to download the file; copy to a thumb drive & install via USB.
If you use IE, and have the 'Active X' component enabled (Tools> Internet Options> Advanced> 'Allow active content to run files on my computer', then that's possibly how you got infected.
Use Firefox, with "NoScript" add-on to defeat this 'clickjacking'.
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