Merge pull request #5054 from KesemSharabi/signature-age

Signature age

Author: KesemSharabi

defender-endpoint/troubleshoot-microsoft-defender-antivirus.yml

@@ -886,9 +886,9 @@ sections:
 
           - BM state: Behavior Monitoring state (Enabled or Disabled)
 
-          - Antivirus signature age: Antivirus signature age (in days)
+          - Antivirus signature age: Antivirus signature age (in days). Calculated as the time starting from the Security Intelligence Update (SIU) release date, to the current date. Before a signature is updated for the first time, it'll display an age of 65535 days.
 
-          - Antispyware signature age: Antispyware signature age (in days)
+          - Antispyware signature age: Antispyware signature age (in days). Timestamp reflecting the Security Intelligence Update (SIU) release date (not the local installation time). Before the timestamp is updated for the first time, its value is null.
 
           - Last quick scan age: Last quick scan age (in days)