![]() ![]() So to answer your question: Yes you can infect your machine by downloading and storing malware on your hard drive without executing.įiles, in and of themselves, cannot execute without some software causing them to run. This used to be the default behaviour in early email clients.Īlso, if the operating system is not patched or specific software has errors that a virus can exploit to run its code, then a virus can start itself. If the operating system allows files to be executed automatically because of their name or location (for example an email attachment) then a virus can masquerade as a legitimate file and be executed by the operating system without the user authorization. ![]() So in general a virus cannot execute itself, unless it has the cooperation of the operating system or software bugs or the user intervention. They are not self replicating unlike viruses. Moreover, they are quite different from viruses. Trojan - is a kind of malware that appears to the user to perform a function but in fact facilitates unauthorized access to the system. Boot sector, which spreads via boot sector and Multi partite type with several types of infection mechanisms.When the infected program is run again, it will again find new targets and so on. No resident type: once a virus is executed, it will search for files it can infect.Then after infecting them, it will quit.Resident type: which one executed becomes memory resident(and waitsįor some triggers such loading of other program).Viruses can be classified into the following sub-categories: Let say that a virus has infected a file, now if the owner moves the file to any system, the virus has thus chance to spread and survive. The only way viruses are supposed to spread is with the host - at least in their rigorous classification. Viruses do not spread via exploiting vulnerabilities (the ones that do that are called Worms). Virus - is a software that copies itself and spreads without permission or knowledge of the owner. It is general term used to represent various forms of intrusive, hostile and annoying code. It is basically a software written to cause damage or infiltrate computer systems without the owner informed consent. Malware - is the short form of Malicious Software. ![]() then you should either test these apps in a virtual machine or at least using the "Guest" account feature (where pretty much everything is deleted as soon as you log out).Firstly I would like to explain differences between Viruses, Trojans and Malware. If you are the type of person who regularly installs random apps from the internet and then deletes most of them. You might also want to search your entire system instead of just ~/Library, but if the app installs anything elsewhere in the system then that's a pretty good sign that you should be checking the documentation for the correct uninstall procedure and/or contacting their tech support, to make sure it is actually safe to delete those files without screwing up your system. It's usually pretty safe though, most files in the Library folder in your user's home folder will be re-created as necessary, if something important has been deleted. Don't do it at all unless you have a backup to restore to incase something goes wrong. When a file is selected, the "Path Bar" at the bottom of the window will tell you where the file is, which can help figure out what app it belongs to.īe careful, modifying anything in a Library folder can screw up your system. Make sure everything you see is actually related to the app, and move it to the trash. By default, it will search "This Mac", click on "Library" to only search the folder you were in before doing the search. Type the name of the app into the top right search box (eg: "TextMate"), and when it suggests "Filename contains: textmate" in the menu, click on that. Hold down the Option key to make the Library menu item visible, and click on it. It will leave a few configuration files/etc around, but they're usually really small and you want them to be there, incase you ever decide to install the app again. ![]() Most mac apps won't create much extra "junk". If the app is a driver or some kind of system hack, then you better read it's documentation or contact it's tech support team to find out how to uninstall it.įor most apps, simply quit the app and drag it to the trash. ![]()
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