The Machine Info:
I am running a Windows 7 Enterprise machine 64 bit OS SP1 installed as well as all other updates from Microsoft.
CPU Intel I5 M560 with 4 gb ram this machine is not part of a domain. This machine has Norton Security installed (since day one and tested with EICAR test file on install) and has scans done on a regular basis.
I use Outlook 2010 64 bit to connect to an exchange server and to my personal email (separate profiles). I own my domain for my personal email, and received an email that my account has been hacked ( email from hosting Company admin) and its being used to spam. he changed my password and it stopped but the spammer kept trying to get in. Four days later I opened outlook and entered the new password and the spam started on the mail server again as if Outlook relayed my password to the hacker. Machine is not slow at all and does not suffer from blue screen on any other symptom that I have noticed.
I have run full system scans with Norton (pc was in safe mode network access) and with Norton Power Eraser.
Norton only revealed tracking cookies...
Norton Power Eraser photoshop.exe as a startup item and removed it....
Malware Bytes Found Adware.StatBlaster and removed it
I have used sysinternals to monitor TCP activity and nothing looks out of the norm…
How can I be sure the machine is clean?
Thanks in Advance