what type of files are dangerous in Upload?

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hi ,
i have file upload that i want user uploads every file except dangerous file.
what type of files are dangerous in Upload that i must check them with

HttpPostedFile.ContentType

thanks alot

Posted 25-Nov-11 23:09pm

zinajoonjooni

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4 solutions

Solution 4

That depends on what you are going to do with them! If all you do is store them, either in a folder or a database, then no file is intrinsically "dangerous". It could become dangerous when you used it, or the used downloaded it.

If you are going to load them as an application, or as a datafile to an application, then almost any file could be considered dangerous to some extent.

Posted 25-Nov-11 23:21pm

OriginalGriff

Comments

zinajoonjooni 26-Nov-11 5:24am

thanks for your answer,i store them in a folder to give their links to user in a post of cms project

Sergey Alexandrovich Kryukov 26-Nov-11 23:20pm

This is the only correct answer so far, my 5.
--SA

Solution 1

I think .exe type file will be dangerous .

Posted 25-Nov-11 23:15pm

Niranjankr

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tulasiram3975 · Accepted Answer · 2011-11-25T23:19:00

Solution 3

Some Of .exe,.inf File Are dangerous...
http://www.computing.net/answers/security/dangerous-file-extensions/3500.html[^]

check this link once you may get some dangerous file extentions

Posted 25-Nov-11 23:19pm

tulasiram3975

v2

uspatel · Accepted Answer · 2011-11-25T23:16:00

Solution 2

exe,bat, or any executable file may be dangerous.
Dangerous_file_types

Posted 25-Nov-11 23:16pm

uspatel

Updated 25-Nov-11 23:17pm

v2