Antivirus vendors solve this problem with two solutions.First, they write dedicated unpackers to reverse the operation of the most common packers, and then use emulation to handle less common and custom packers.Client and server implementations MUST ignore members not recognized by this specification.A JSON object MUST be at the root of every JSON API request and response containing data. A document MUST contain at least one of the following top-level members: A logical collection of resources MUST be represented as an array, even if it only contains one item or is empty.This efficiency is achieved without compromising readability, flexibility, or discoverability.JSON API requires use of the JSON API media type () for exchanging data.Network administrators should keep scenarios like this in mind when deciding to deploy Antivirus, it’s a significant tradeoff in terms of increasing attack surface.Symantec has implemented an I/O abstraction layer that exposes the Power Point streams stored in a Compound File via a stdio-like interface.
Members of the relationships object (“relationships”) represent references from the resource object in which it’s defined to other resource objects. A “relationship object” MUST contain at least one of the following: request.
However, with careful manipulation of the cache, we can partially overwrite the return address, meaning we don’t have to leak any module address to reliably predict the location of code relative to the return address.
It’s a 100% reliable remote exploit, effective against the default configuration in Norton Antivirus and Symantec Endpoint, exploitable just from email or the web.
Once I verified this work with a debugger, building a PE header that mismatched Size Of Image and Size Of Raw Data would reliably trigger the vulnerability.
Because Symantec uses a filter driver to intercept all system I/O, just emailing a file to a victim or sending them a link to an exploit is enough to trigger it - the victim does not need to open the file or interact with it in anyway.
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