[ros-dev] ReactOS and Viruses

[Jasper van de Gronde]

Rick Langschultz wrote:
> Sun will be releasing Solaris 10 shortly as a commercial product
> available for purchase. There is a new file system that is 128-bit, and
> is protected by md5 checksums, I think this is a great idea for reactos.
> I think before a program executes there should be a binary verifier that
> checks this checksum and then allows the program to run. This would help
> in deterring Windows viruses from attaching themselves to reactos
> binaries. Since ReactOS is open source it will be harder to protect a
> binary if there is an attack and a malicious user replaces a dll or an
> exe. Perhaps this can be done using a small xml file or a txt file
> called md5sums or something. Please let me know what you think.

The PE format already allows for something like this (although it might 
be very insecure, I don't know), see the Checksum field in section:
3.4.2. Optional Header Windows NT-Specific Fields (Image Only)
Of pecoff.doc:
http://www.microsoft.com/whdc/system/platform/firmware/PECOFF.mspx