There seems to be a warning that unzipping the mod on CurseForge by updating it, that windows warns that the zipfile contains a Trojan.

If this could be researched that be great.

I'm having the same problem. Warns of Trojan, unable to install/not going to install.

Do older versions also prompt this warning?

This is obviously a false positive of some sort as the update was just adding the new affix rotation for the current week.

Windows Malware scan reports:

Trojan:Script/Wacatac.B!ml

Affected items:
file: C:\Users\username\AppData\Local\Temp\CF\Nz0UQIpFPECGfxQG1UZzg\19.zip

Also detected as: Trojan:Script/Sabsik.FL.A!ml

Affected items:
C:\Users\username\AppData\Local\Temp\CF\yJJO9FCu10KXaBLXbkINZQ\4.zip
C:\Users\username\AppData\Local\Temp\CF\yJJO9FCu10KXaBLXbkINZQ\1.zip
C:\Users\username\AppData\Local\Temp\CF\mvvq6PLb3Em6s2IlpkHJKQ\1.zip

I can install 3.6.1 and 3.6.2 without complaints. 3.6.4 is caught. I don't have my original 3.6.3 version as an install alternative for some reason.

I just pulled a new version of the Microsoft Defender Antivirus definitions (1.347.40.0) and now MDT 3.6.4 was installed properly. Can someone else verify that updating Defender solves the problem?

Windows Defender was causing problem of falsely flagging AddOn updates from curseforge as malware. This was an issue on Microsofts part with a faulty definition from Wednesday that has been since fixed. Downloading the newest definition will resolve the issue. Learn more here: https://www.microsoft.com/en-us/wdsi/defenderupdates