5th January and The Tale of Joshi Virus: India’s First Global Computer Virus

The report recounts the Joshi boot-sector virus, an early 1990s DOS-era malware of Indian origin that spread via shared floppy disks, infected master boot records and floppy boot sectors, and used stealth techniques (hooking INT 8/9/13/21 and storing the original boot sector on an extra floppy track). It notes a non-destructive annual payload that froze booting until the phrase "Happy Birthday Joshi" was typed, describes challenges in detection and removal at the time, and frames the narrative as a historical/technical reminiscence rather than an active threat bulletin.