Directory persistence hack for webshells

The scenario: you’re busy pen testing a webapp and you get code execution somehow. Probably with a dinky little webshell like <?php echo shell_exec($_GET['e']); ?>. For whatever reason, you can’t get or don’t feel like getting something more sophisticated. But the one thing that really irritates you is having to cd through to the directory you want with every new command.

Well, here’s a little Ruby script that will do that for you, literally by remembering every single one of your cds and prepending them, in order, to all future commands. Happy hacking.

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