Did the nytimes.com malware infect your computer?

Readers of The New York Times Web site noticed a puzzling pop-up ad this weekend, one informing them their computer was infected with viruses and insisting they download software to protect it. I hope you didn’t download it. The Times notified readers about the “unauthorized advertisement” and told them not to click on it. “While The Times doesn’t spell this out,” wrote All Things Digital ’s Peter Kafka. “It has likely had its site hijacked by a ‘mal…