Re: [Full-Disclosure] Symantec AntiVirus and AOL

From: Maxim S. Shatskih (maxim_at_STORAGECRAFT.COM)
Date: 10/26/03

  • Next message: Dolan, David: "Re: Symantec AntiVirus and AOL"
    Date:         Sun, 26 Oct 2003 20:14:12 +0300

    >anyone has experience with device drivers then am I right that once a vendors
    >evice driver sets the NCD_VIRTUAL bit then they have done their duty as far as
    saying they
    >re a fake adapter? Is the burden then on Symantec to check the flags of
    adapters they are

    Regardless of all this stuff, I expect the Windows app to use rpcrt4!UuidCreate
    or ole32!CoCreateGuid to generate GUIDs. If Symantec's antivirus violates this
    rule - then this looks suspiciously by itself.

    For instance, these routines encrypt GUIDs in a way that the original MAC
    address is not distinguishable. If Symantec uses the MAC addresses literally in
    the GUIDs - then this is a privacy leak at least.

    Using the MAC address of the virtual adapter (on the upper egde of some MUX IM)
    is just funny, since it is emulated in the machine code which responds to OID
    query, and can be emulated, for instance, by repeating the MAC address of the
    one of the underlying adapters.

    Maxim Shatskih, Windows DDK MVP
    StorageCraft Corporation

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  • Next message: Dolan, David: "Re: Symantec AntiVirus and AOL"