If you're not familiar with Christ Titus, he is a big Youtuber in the tech space and he developed a tool called Windows Utility for debloating Windows. One of its features is called Microwin and what it does is it takes a Windows ISO and strips it of bloat, telemetry and things of this nature.
I tried Microwin to create such a debloated ISO of Win10 and it tirggered Avast, which said it detected a trojan. Here's what Powershell said:
https://imgur.com/a/AAJkknm
Here is what Avast recorded:
https://imgur.com/a/NKO2VnM
Do you think this is a genuine detection or a false positive? I'm not a programmer so maybe someone can interpret this better than I. Have there been suspicions or concerns about Windows Utility in the past?
EDIT:
Some more details. In this Windows Utility, you select the ISO you want to debloat and then after I select it I click "start the process" and the moment I click it, Avast sounds off. I just repeated the process exactly as previously and got the same two detections.
Here's more info from Avast: https://imgur.com/a/lLAR49s