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Why doesn't Windows (Microsoft) build open source code themselves and sign the source seen, easier to inspect for bad things version?

• viraptor 5y ago
  It's not easy to spot malware, even if you have the source. For example Zoom can capture your screen, start applications, capture mic and camera, and allows remote control of your desktop. Why wouldn't it be blocked as malware even if you could automatically inspect the source?
  • 13of40 5y ago
    Automated malware detection typically looks for behavior during installation rather than just the payload. (You can use the payload as a hint, though.) If an installer downloads a PNG and injects the last half of it into another process, and that drops an unsigned EXE into 'all users\startup' that can capture your screen, etc. you can probably block that without pissing too many people off. If you block SCREENCAP.EXE it's a different story.
    • viraptor 5y ago
      That's old news. The race happens every day. AV companies upload samples to explode in a simulated environment, meanwhile malware authors started fighting back using `sleep(10000)` to avoid detection since that's longer than automation is worth running. The bad parts are not being executed until much later. Then the test environments started faking time speed ups. I think there was a good episode about that in the Risky Business podcast.
      • deleted 5y ago
        [deleted]