![]() ![]() There have been some refinements over the years to improve accuracy, but that's basically the way they all work. Signatures are primarily of two types, either matching a hash value (which works well for files that never change) or a string of characters, either hex or ascii, (best for files that have been slightly changed but still contain key strings). ![]() ![]() The experience you have experienced with a couple of those older methods is based on their design to examine every file that they have access to and compare it against a massive signature database to see if there is a match. If something changes in the future, and you get hit with ransomware, just erase the hard drive, restore from a backup, and go on about your business.Īlthough I've never used the Windows version, my understanding is that it shares much of the same philosophy as the Mac version, in that it does work differently from the majority of anti-malware software. Just keep a good, up-to-date set of backups. I don't anticipate there ever being a significant ransomware problem on macOS, unless the market share shifts significantly. The more machines you infect the better, so Windows, with its higher market share, is a much juicier target. Ransomware has a brief window to infect systems, and only a handful of the owners of those systems will actually pay the ransom. We're definitely looking for techniques for doing behavioral detections on macOS, but want to be sure we get it right.įor now, all ransomware for macOS was an utter failure, so it doesn't seem anyone's too eager to repeat the attempt. It's a bit difficult to get the average Mac user to install security software to begin with, because they've been told for so long that "Macs don't get viruses." (And they often still do today.) One of the worst things antivirus software can do is make a nuisance of itself, detecting things it shouldn't and wreaking havoc on the system. You're right that we don't have any kind of suspicious activity monitoring yet, and a big reason for that is the potential for false positives. Endpoint Detection & Response for Servers ![]()
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