So, a malware infect your computer that can access and see your activities like opening a webcam and watching porns? There is nothing to worry about if you are not doing such pathethic things like nude actions. However, sextortion is very popular nowadays. A simple picture can ruined your life, if you'll gonna be affected with the blackmails they are sending it to you. Why do they choose litecoin? I'm just wondering.

Blackmailers are hi-tech nowadays. I just want to advice that do not be afraid. There is a thing called, "CYBERCRIME LAW". Seek help from the right authorities is the appropriate steps to this.