Hacked From email attachment

Hello all. Received an email from my sister regarding paint color for kitchen (which we had been talking about) that said check out this attachment. So I opened it (my av scanned it and said it was safe), it took me to a web page that requested my email address and password. Right away something sounded fishy so I deleted it. A went to answer the phone and later when I came back to my computer I found several dos windows open with commands
I didn't understand and an open window with a program that had my wireless passkey displayed! So I immediately disconnected from the internet and did the following:
Changed my wireless passkey and router password.
Ran malware bytes and Superantispyware. Nothing found other than cookies.
Ran Avast AV full scan, nothing found.
Changed my online banking and credit card passwords.
Checked all my onlin accounts, no suspicious activity.
Any other suggestions to do at this point?
Thanks.