Wrote: There is no malware that can affect a Mac simply by plugging a USB flash drive into the computer, and Windows malware cannot affect the Mac at all. That is not strictly true. A USB device can masquerade as a 'HIDdevice' - a keyboard, mouse etc. A USB device that works on one port but not another is a sign of a faulty port. If this is the case, the only real solution is to contact an authorized Mac specialist for a hardware diagnostics test and have the port repaired. Find great deals on eBay for mac usb port. Shop with confidence. It can do anything that your keyboard can do (like spotlight for terminal then rm your home folder). A tool called a 'rubber ducky' already does this. Whilst it technically isnt a virus or malware, it should be considered malicious & a potential entry point. At the very least you should consider it dangerous to connect an unknown USB device. Here is an example for installing a backdoor via single user mode. Simpler scripts can alter your Mac without single user mode. I'm certain you are correct in this case Thomas, and your site is very helpful, but it could be time to rethink your answer since the times are a changin. Malicious software can run by simply attaching a USB stick to a Mac No, it can't. The 'Rubber Ducky' described in the article you referred to earlier is a specialized hardware device, not a USB flash drive. Could it be made to look like a regular USB flash drive? Would it be found getting passed around from person to person like a virus, or being sold in stores as if it were a flash drive? It's a hacker tool, meant to be used to quickly hack a computer given a very brief period of physical access. An 'evil maid attack' is an example of the real-world usage of such devices. There is no known way for an unmodified flash drive to infect a Mac just by plugging it in. I understand that Mac won't be affected by a malware. The Ink extension is purely a windows malware. However, if I insert any usb flash drive into my mac, all the files on it are affected and got Ink extension. So I don't actually get anything from usb drive which is a huge problem for me. ![]() Secondly, if I take some file to a usb flash drive from my mac and insert it to a windows desktop, Ink files are created automatically. So there are two files one being normal and other being affected by Ink extension. And sometime all the files are gone if not within a folder. If I keep them in a folder then sometimes I can save the files in that flash drive. I will buy a new flash drive today and try it, Let's see what happens? Smorshed wrote: I understand that Mac won't be affected by a malware. Then you have misunderstood. There is malware that can affect the Mac. Manual aqualand c022. It's just that there isn't any that can affect the Mac simply by inserting a normal USB flash drive, nor is there any that behaves in the way you describe. However, if I insert any usb flash drive into my mac, all the files on it are affected and got Ink extension. That's definitely not being caused by the Mac. Any flash drive behaving this way has been damaged by an infected Windows machine. I'm not an expert in how this malware presents itself on Windows. The malware on the Windows machine might cause the contents of those drives to display differently on the infected machine, or the.lnk files are displayed differently on Windows. In any case, the problem only becomes evident when you connect to the Mac, but that does not mean that the Mac is causing the problem. Apple Footer • This site contains user submitted content, comments and opinions and is for informational purposes only. Apple may provide or recommend responses as a possible solution based on the information provided; every potential issue may involve several factors not detailed in the conversations captured in an electronic forum and Apple can therefore provide no guarantee as to the efficacy of any proposed solutions on the community forums. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site.
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