Malware

During an introductory computer class at Lehigh in the fall of 1976, a fellow student scribbled the following lines on the margin of his notebook. I interpreted this as a series of punch cards of the university's batch system.

LOGIN, A1234
REWIND
BATCH INPUT

The CDC SCOPE commands for the University's CDC 6400. The card sequence was read as an input file.

• Line one, the login authentication.
• Line two, the input file is rewound to the beginning.
• Line three, the rewound file is sent to the system input queue.

Rinse, lather, repeat.