He deleted it.
The "virus" part happened when you tried to close the window. You Are An Idiot Virus Download Exe
The source was a single, corrupted .exe file. Its metadata read: Created: April 1, 1995. Author: unknown.exe. He deleted it
"Ridiculous," Aris muttered, wiping sweat from his brow. "A skid's prank. A worm." 1995. Author: unknown.exe. "Ridiculous