Hi guys,

Looks like I had the same problem too. I also read a lot of topics on the Internet regarding this issue. I personally had a RarExt64.dll sandbox alert everytime I tried opening Microsoft Word. Unfortunately no antivirus was able to detect it, but I think it’s not a safe file. I’m saying this because I decided to unistall WinRAR and only the .dll and a registry key remained in my WinRAR folder. When I tried deleting them under Windows I had a problem with the .dll file (although I had taken ownership of it along with the WinRAR folder). I was successful in removing it running the Safe Mode. After restarting my computer the sandbox alerts disappeared. However I am not sure that the intruder is gone for good as no antivirus can detect it and maybe it has found a way to hide itself and continue to run undetected. Before deleting the files I tried looking for suspicious processes, but my search came up empty. From what I have gathered from the internet, the RarExtLoader.exe generates similar problems. Another concern of mine is the way in which these files were able to get in my WinRAR folder as I haven’t downloaded or installed anything recently. Hope this helps and hope this problem will soon be solved.