xocopy
Copy executables with execute, but no read permission on Unix systems.
Data verified May 2026
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Sometimes when you're on a Unix system where you do not have admin privileges, you can come across programs with strange permissions such as the following: -rwx--x--x 1 root root 56152 Jul 1 12:37 runme. The permissions are set so that anyone can execute this program, but only the file owner can read the program. However, this is not true. If somebody can execute the program, they can copy it by reading it from memory once the program has been loaded. xocopy is a program that can copy executables with execute, but no read permission. It has been tested on FreeBSD and Linux kernels 2.[246].x. Limitations: Does not work with SUID or SGID executables on Linux 2.2.x. However, it works fine on 2.4.x and 2.6.x. Limited to ELF executables. Can only copy programs that have the ELF header and program header table inside a loadable segment. GCC does this by default. Download xocopy.c
xocopy FAQ
Common questions about xocopy including features, pricing, alternatives, and user reviews.
xocopy is Copy executables with execute, but no read permission on Unix systems. It is a Security Operations solution designed to help security teams with Binary Analysis.
xocopy is a free Security Operations tool. This makes it accessible for organizations of all sizes, from startups to enterprises. Visit https://reverse.lostrealm.com/tools/xocopy.html for download and installation instructions.
Popular alternatives to xocopy include:
1.Attify Offensive IoT Exploitation - Private training course for IoT device pentesting and exploitation (Commercial)
2.Nightwing DejaVM - Whole-system emulation environment for software dev, debugging, testing & security (Commercial)
3.Zenyard RE Agent - AI agent for in-depth binary analysis and reverse engineering assistance. (Commercial)
4.Boomerang Decompiler - An open source machine code decompiler that converts binary executables into readable C source code across multiple architectures and file formats. (Free)
5.Shellcode2PE - A Python script that converts shellcode into a PE32 or PE32+ file. (Free)
Compare these tools and more at https://cybersectools.com/categories/security-operations
xocopy is for security teams and organizations that need Binary Analysis. It's particularly suitable for small to medium-sized teams looking for cost-effective solutions. Other Security Operations tools can be found at https://cybersectools.com/categories/security-operations
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