Couloader.exe -

If you suspect an infection, do not try to delete the file manually, as it may have multiple copies or "watchdog" processes that will just reinstall it.

They can "hollow out" a legitimate Windows process (like explorer.exe ) and hide their malicious code inside it. CouLoader.exe

They check if they are running in a "sandbox" or virtual machine used by researchers and will shut down to avoid detection. If you suspect an infection, do not try