AdwCleaner is reckoned to be safe to use. I download it from the BleepingComputer site, but it may be offered for download from other places. Where did you get it from?
I'll download from BC and run a check just to be sure it's okay
I downloaded AdwCleaner from BleepingComputer and from the site you linked to. Both files are v22.214.171.124 and Chrome passed both for download without objection.
Scanned both files with McAfee, no problems. No Artemis detection on either one. I did a Scan without anything abnormal happening.
Both files were uploaded to VirusTotal for a second opinion. Results :
ToolsLib download 3/52
Try downloading again and see if you get another Artemis detection
Tried downloading it again (using both Firefox and chrome), and for some reason it doesn't detect it now.
At first I thought maybe because I added it to my exceptions list, but when I removed it there it still downloads without warning.
I did send it to the virus research email address, so maybe something happened there (although I did not get a response except the automated one).
Still weird though. I guess we'll see what happens when a new version comes out.
AdwCleaner is widely used, so maybe one of the Lab guys saw the Artemis detection somewhere else and whitelisted the program about the same time you submitted the report. I think if the whitelisting had been because of your submission you would have been notified. As you say, we'll have to watch what happens when a new version is released.