(Or, rather, instead of attempting to run a command they seem to want to parse a log that looks suspiciously similar to the warning on my machine, but that's all I can figure out from there.) However, given the short excerpt of their code, I cannot come to a conclusion on what exactly it is they tried to do. The only relevant link I found is the following:, where someone (suspiciously?) seems to want to run a certain command using PowerShell on the aforementioned file. I have, of course, tried to already search on Google to find further information on my situation, but unfortunately have not found much. Perhaps Avast deleted it from there upon issuing the warning? Given the name of the file, it sounds like some program tried to uninstall Avast, although I might of course be wrong. The file in question, 'UNINSTALLEXCHANGE.PS1', seems to have been located in the /SETUP folder of my Avast installation, although I currently cannot find it in there anymore. While the warning above mentions the source being Windows' PowerShell, I did not have one actively open myself, which means that some other program must have tried to run a command through PowerShell/cmd. Given that I did not perform a scan myself, and that the following threat popped up while I was not actively at my computer, I assume Avast must have detected an action occurring in the background. Yesterday, I noticed the following Avast BehaviorShield warning popup:

Avast threat has been detected sound