It wasn't malware. It was a passenger.

She closed the laptop slowly.

Or maybe, it just went back to sleep.

Marta nodded. But as she closed the Power Options window, something flickered. Not a glitch—a pattern. For a split second, the performance graphs in Task Manager showed all four cores active . And on the third core, a tiny, repeating dip and spike.

The ThinkCentre’s fan hiccupped. Then it purred.

She ran a deeper scan. Hidden deep inside the powercfg profiles was a string of hexadecimal she didn’t recognize. Not Microsoft’s signature. Not Intel’s. It was a tiny, self-replicating loop of code—harmless, almost elegant—that had been voluntarily migrating into the parked cores. It would sleep there, dormant, until the system tried to unpark the core. Then it would jump to the next parked core.

She set "Core parking" to . Applied. Rebooted.

Marta ran the usual diagnostics. No malware. SSD health at 98%. RAM was fine. CPU utilization was bizarre—core 0 was pegged at 100%, while cores 1, 2, and 3 were flatlined, as if on strike.