Help, PC infected with malware

[rich.thompson]

Thank you, but who come they knew 2 of my passwords, although one has not been used for years

[Sass Drake]

There were cases of hacked websites where leaked data contained email addresses and passwords in plaintext format. Since it was public available and you probably was registered on them scammer tried to use it. Also, you might used password which many people also use. https://en.wikipedia.org/wiki/List_of_the_most_common_passwords

[Asyn]

Thank you, but who come they knew 2 of my passwords, although one has not been used for years

Avast Hack-Check: https://www.avast.com/hackcheck