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Show HN: Keysniffer – an academic functional Linux kernel mode keylogger
- apjana 7y ago`keysniffer` is a Linux kernel module to grab keys pressed in the keyboard, or a keylogger. It's also an academic project for devs willing to learn Linux kernel module programming, with extensive comments, checkpatch.pl scanned code, standards-compliant Makefile and DKMS support. `keysniffer` was initially written for the US keyboard (and conforming laptops). By default it shows human-readable strings for the keys pressed. Optionally, the keycode shift_mask pair can be printed in hex or decimal. You can lookup the keycodes in `/usr/include/linux/input-event-codes.h`. The keypress logs are recorded in debugfs as long as the module is loaded.