Lenovo has released a tool to remove the dangerous “SuperFish” adware program that the company had pre-installed onto many of its consumer-grade Lenovo laptops sold before January 2015. Superfish is an adware that tampers with your computer’s encryption certificates. It can silently intercept and decrypt HTTPS connections, tamper with pages and inject advertisements. US-CERT warned Friday that Superfish malware could be exploited to “allow a remote attacker to read all encrypted web browser traffic (HTTPS) or perform other attacks on the affected system”
Source: https://thehackernews.com/2015/02/superfish-malware-removing-tool.html