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On Thu, Jul 13, 2017 at 04:45:35PM -0700, pixel fairy wrote:
> On Friday, July 7, 2017 at 1:20:10 PM UTC-7, Chris Laprise wrote:
> >
> > I know Joanna's reservations about VM introspection, but this 
> > Bitdefender introspection example is interesting nonetheless: 
> >
> >
> > https://businessinsights.bitdefender.com/hypervisor-introspection-defeated-enternalblue-a-priori
> >  
> >
> 
> Im curious about these reservations. is it the attack surface?

Yes, at least two kinds:
1. Enabling API for reading VM memory break VM isolation - misbehaving
monitoring VM can steal any secret and you'll never know

2. Parsing VM memory (operating system structures, application
structures etc) is very complex - VM that know it is monitored can try
exploit the parsing code; then go to point 1 for example

As for examples what could possibly go wrong when adding anti-virus
parsing whatever it can find, see here:
https://bugs.chromium.org/p/project-zero/issues/detail?id=1252

- -- 
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
A: Because it messes up the order in which people normally read text.
Q: Why is top-posting such a bad thing?
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