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BlockedExtensionQAExamples
Six files with dangerous extensions and harmless contents: EXE, DLL, BAT, SH, PHP and JAR. They are for testing the upload blocklist of a website or application. Real services block these types because an uploaded script or program can be run by the server or by an unsuspecting user. The files here contain only a line of text, or in the JAR case a tiny archive, so nothing can execute, and they are 57 to 189 bytes each. Use them to confirm each type is refused, that the error message is clear, that double extensions and renamed copies do not slip through, and that the file never lands on disk.