It's quite common to find mysterious files on your machine or USB drive. After clicking and executing them, it seems that there is no adverse reaction from the machine, but these seemingly harmless files could potentially cause your computer to be infected with a virus. So, what should we do if we encounter such files? Of course, you can simply delete them, but what if you accidentally delete an important file, thus affecting your normal use? No worries, now we can get help from Filterbit, an online virus detection tool. You can upload files up to 20MB for free to check whether these unknown items are actually viruses. This service is particularly useful for those who frequently download source codes. "Online virus scanning is nothing new; it has been around for years. The blogger must be from Mars!" "You're the one from Mars, your whole family is!" What makes Filterbit different from previous online virus scanning services is that it uses nine world-renowned antivirus engines, including AVG, ClamWin, Eset, McAfee, etc., to detect whether your files are safe. In simple terms, it’s like a "consultation of experts." Do you understand, you country bumpkin?