WebShells | Some cool WebShells | Hacking library
kandi X-RAY | WebShells Summary
kandi X-RAY | WebShells Summary
Some cool WebShells
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Top functions reviewed by kandi - BETA
- Extract a zip file
- Add a file
- Zip a file
- Read central file headers
- Read a central directory
- Read file header
- add directory
- Convert unix timestamp to DOS format
- returns formatted date
- Create a file
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Community Discussions
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QUESTION
I made a post function from c# to send a file to the webserver (php), every file that was uploaded was not filtered by the extension, I was afraid that if there were bad people uploading malicious files such as webshells or other malware into my web server. I only want one extension (.lic) that can be uploaded via the "post" function
...ANSWER
Answered 2019-Feb-17 at 09:43as it was pointed out in a comment - just because a file purports to be of a particular extension does not mean that it necessarily is of that type. However some filtering can be achieved by doing some processing like the following. Test for extension expected mimetype, size and if each .lic
file has a similar header you can test a portion of the actual file itself - though perhaps a file sha1
or md5
checksum might be of use too.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install WebShells
PHP requires the Visual C runtime (CRT). The Microsoft Visual C++ Redistributable for Visual Studio 2019 is suitable for all these PHP versions, see visualstudio.microsoft.com. You MUST download the x86 CRT for PHP x86 builds and the x64 CRT for PHP x64 builds. The CRT installer supports the /quiet and /norestart command-line switches, so you can also script it.
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