A third version of Downadup worm has been identified by Symantec. The new version gives infected machines more powerful instructions to disable antivirus software and analysis tools. The W32 Downadup.C variant was discovered Friday in a Symantec honeypot and is still under investigation.
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A virus known as Conficker, Downadup, or Kido spreads through removal media like USB memory sticks and networks posing a growing threat to Windows users. Approximately, 3.5 millions machines have been infected by the worm so far. Once executed, the virus disables a number of system services and then connects to a malicious server, where it downloads additional malware to install on the infected computer. So it’s important that Windows users, install the latest Microsoft security patch.