Adware:Win32/Hotbar
On Jul 21, 2011 05:35 AM UTC, an update caused a temporary file related to the next Microsoft definition update to be incorrectly detected as Adware:Win32/Hotbar. At 08:51 PM UTC, Microsoft released a new signature to address the issue. Signature versions 1.109.92.0 and higher include this fix.
(Quelle:
Encyclopedia entry: Adware:Win32/Hotbar - Learn more about malware - Microsoft Malware Protection Center)
Also nicht gleich so erschrecken (so wie ich eben in meinem Lab ....... )
Grüsse
Gulp