What do antivirus scanners on your PC actually look for in a file?

We love reddit, because amidst photos of cute puppies (our favourite category), internet memes and various online shenanigans, there are many insightful, intelligent people sharing good information. In the snippet below, a reddit user answers the question “What do antivirus scanners on your PC actually look for in a file?”. It’s a great answer, so we’re sharing it below.

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