I'm a Systems Reliability and DevOps engineer for Netdata Inc. When not working, I enjoy studying linguistics and history, playing video games, and cooking all kinds of international cuisine.
If they're using 9P (which I had not previously realized) it's more a question of whether the transport is user accessible, not whether the protocol is 'shared'. 9P itself is open, and it's remarkably easy to write clients for.
As far as Defender, it would not be unique in any manner as a cross-OS AV system (ClamAV for example already handles both Windows and Linux just fine, it just doesn't have in-built realtime scanning). What I'm more interested in is seeing if they decide to try and shoehorn Defender's on-access scanning into the VFS layer for WSL itself, which would probably translate to a pretty big performance hit.
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If they're using 9P (which I had not previously realized) it's more a question of whether the transport is user accessible, not whether the protocol is 'shared'. 9P itself is open, and it's remarkably easy to write clients for.
As far as Defender, it would not be unique in any manner as a cross-OS AV system (ClamAV for example already handles both Windows and Linux just fine, it just doesn't have in-built realtime scanning). What I'm more interested in is seeing if they decide to try and shoehorn Defender's on-access scanning into the VFS layer for WSL itself, which would probably translate to a pretty big performance hit.