Microsoft Defender update for Windows operating system installation images - Signature update

Question

We have requirement that all machines should have antimalware signature less than 7 days old. For the fresh virtual machines, the VHD doesn't have latest signature before the first auto-update, so we plan to use the tool provided here&nbsp;Microsoft Defender update for Windows operating system installation images&nbsp;to update our VHD once a week.&nbsp;
&nbsp;
However, this tool is updated monthly which means the signature is not up-to-date, is there a similar tool we can use to update the antimalware signature at least once a week?

pvanberlo · Answer

I am not aware of any Microsoft supplied tools that could do this more often. The platform updates are only released once a month. Of course the signatures are released more often so you can download them manually and look for other ways of deploying them.

Btw, forcing a manual update will download new definitions immediately. I know it’s not perfect but why not trigger this once the image is made available to a user? And then run the monthly updates using the tool you mentioned.

chenleo · Answer

pvanberlo&nbsp;We are maintaining an image which is being used constantly, so it should always be available. I guess in this case, I will have to download the signature manually, could you point me to the doc of downloading the signature? Thank you!&nbsp;

thijs lecomte · Answer

You could look into Azure DevOpsSpin up the image each x days, force updates and create a new image

pvanberlo · Answer

More info can be found at https://www.microsoft.com/en-us/wdsi/defenderupdates.

Forum Discussion

Microsoft Defender update for Windows operating system installation images - Signature update

Share

Resources