Just downloaded the latest nw.js from https://www.scirra.com/nwjs and getting an error "The file is a decompression bomb" from Avast scan.
Version nwjs-for-c2-v0-13-0-beta5
FYI
Kaspersky didn't find anything, and Avast is renowned for false positives.
If really worried, try it on Jotti Scanner.
Yeah Avast can be a bit over sensitive on times.
Don't fancy uploading a 130 mb file to jotti as the kids are currently playing online and don't think I can stand the calls of "Lag....."
Just installed it with no problems. Must be Avast
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Avast will actually cause C2 games with NWjs to crash or fail to start.
It false flag it and attempts to run the code in a sandbox environment.
Avast did pop up first time I ran NWjs. Now it behaves itself.