Detect executable file download streem

Probably you could check for this. As far as I have seen, the most usual approach is to verify the extension. For example I have noticed that mail clients usually accept to send an executable if it is renamed e.

I believe that this seems adequate since the security problem is if the user accidentally runs the executable. Is there a good way to determine if a file is executable in Java. Be aware that windows executable are not only. If you want something advanced and difficult to fool, you can use a third-party tool like File for Windows it is a popular command line tool that was ported from Linux.

See this question to learn how to run a command line program and get the output in Java. You can also check Apache Tika to get the file type from its content. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Detect an executable file in java Ask Question. Asked 8 years, 9 months ago. Active 2 years, 8 months ago. Viewed 11k times. Rajeev Rajeev 4, 7 7 gold badges 34 34 silver badges 54 54 bronze badges.

Any other suggestions? Add a comment. Active Oldest Votes. As far as I can see, Mach-O files used by Mac-OSX have the magic number feedface hex again I suggest you create a FileInputStream or similar and read the first few bytes of the file, checking for these magic numbers. I have gone through wikis and found the similar kind of solutions. Below are the wikis i got : csn. I've updated my answer to include Mac OSX as well — devrobf.

I've updated with a code sample for Windows. I'll leave it to you to work out how to test the others. Hope that helps. In my case, i don't have restriction like users are allowed to upload certain formats. He can upload any type. As a precautionary measures, we want to stop them uploading executable ones. If you have no proble, can you give sample program as i am new to java I simply looked up each format in turn.

Capture cancelling of file download dialog? The research path of clustering. A tool to try open-source projects quickly. Get Ahead by Going Headless. Online Marketing. Anyone used Google's 5 stars reviews? Grouping and Sorting a report or form, Please Help.

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How to detect if file download completed or cancelled Dan D I have a large install file an exe on my web server that people download and install from. Stream Detector v1. Download Now Portable Version. Find Alternate Data Streams ADS Stream Detector is a great tool for forensic analysis to discover hidden files such as archives, images, videos, executables, databases, etc within the alternate data streams.

Application Screenshots Here there are some screenshots of the application. Product Details Version 1.