I didn't rate your answer, I just thought it should be mentioned, that most of these libraries have known exploits.. Take for example GDI+ libraries from Microsoft Extremely fast in loading various image formats (and I do use them), but relatively easily exploitable as well.
Instead, and what has been done so far to solve it ' – bummi, nikoshr, tomrozb, Weafs.. Strip the metadata Invoking the virus checker synchronously from the web request is a very bad idea in terms of performance, stability and availability.. I strongly suspect that it would be possible to construct a file that getimagesize() thinks is an image but that IE6 or IE7 thinks is some dangerous MIME type (thanks to IE6/IE7's content-sniffing algorithm), particularly if you don't serve a valid MIME type when it is downloaded by others.. They only scan files saved on disk I needed to figure out a better way of keeping my system virus free, and not write dangerous files to disk, to check if its dangerous! In MVC the HttpPostedFileBase is used to represent the uploaded file.. But see answers I've linked to more for a more thorough treatment of what defenses you should use.
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Closed as off-topic by,,,, Jan 3 '15 at 17:03 This question appears to be off-topic.. The users who voted to close gave this specific reason: • 'Questions asking us to recommend or find a book, tool, software library, tutorial or other off-site resource are off-topic for Stack Overflow as they tend to attract opinionated answers and spam.
While the default upload handler in PHP sensibly puts files out of the way and forces you to move them before the request completes - this means that you'll have to copy the file once more after you virus scan it.. – Jan 10 '13 at 2:43 •. Well it just so happens that the fastest of them also have the highest number of know exploits.. To install PHP Malicious Code Scanner: Download the source and place it in the folder you would like to scan (remember it will scan all subdirectories and files).. As Christian says, ithe best solution is to whitelist and verify the file type - however any file which has uncompressed metadata can potentially be an.. py, John Tseng If this question can be reworded to fit the rules in the, please PHP Malicious Code Scanner can be installed on any server running PHP 5.
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