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This page shows you what's changed in the most recent definitions update for Microsoft antimalware and antispyware software.
The latest update is:
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The following tables list the new and updated definitions for the version you select here. You can choose from the 20 latest updates, and the most recent update is shown by default:
Definition available date: Nov 23,2017 11:46 PM UTC
No new threats have been identified in this definition update.
No threat detections were updated in this definition update.