Thanks in advance for review and assistance. I will try and make a long story shorter.
Back in October, I was notified by Comcast that my PC was the victim of a "bot" due to the large amount of traffic they detected on my network. The guilty PC is a desktop running 7 premium, was guarded by a premium subscription to Trend Micro, and largely used by kids. It was set up with a separate account for general use. The admin account only access able by me. I don't use it often so when I checked it, it was really slow! I was not worried because of my awesome premium Trend protection. I ran scans... all clear, but internet was crippling slow. I noticed lots of weirdness in task manager, and at the advise of my IT team at work I downloaded Malware Bytes (MB). Yeah... MB went crazy and found 15+ infections on my PC! I then downloaded Avira, it found 2 more. So I disabled Trend, bough premium MB and trial avira. All seemed good for a day or two, then alerts started from MB, something got back in. I went to the MB forums and for about 2 months I fought a very deeply rooted infection, that two length attempts with MB couldn't find. Then I downloaded the Comcast provided Norton 360, thinking I might as well try another one. Low an behold it found poweliks, and I hoped all was good, but it only lasted for a few days again. For several weeks I had dual alerts from MB and Norton. MB blocking something coming in, Norton something trying to get out. In frustration, I wiped the hard drive with a 9 hour boot and nuke from Darik and a windows reinstall from CD. Sure enough, within a day, MB and Norton started the same routine. Blocking intrusions inbound and outbound. Nothing actually detected in the form of malware or a virus. Just these daily alerts for intrusion. The IT team at work gave me several ideas and I ran multiple different malware and anti-virus variants, all of them indicated my PC was clean.
I started a forum thread on Norton and about 3 weeks ago someone recommended the ESET poweliks tool. I didn't have much hope as I had ran several other tools and they always found nothing, but the daily alerts from MB and Norton had me freaked out, so why not. BINGO ESET's tool found poweliks and took action. The alerts immediately stopped and have not returned for over 3 weeks. I posted on the Norton form as resolved with many thanks... then I was warned. Still do not trust that machine go to Bleeping and find out if it is really clean.
So there you have it! I don't trust this PC for anything other than kids games. A waste, and maybe I should never trust it again, but my hope are clean bill of health. MB Premium and Norton 360 are actively running, and kids (teenagers of the squirrelist sort!) don't have the admin password.
What can I do to fully trust this machine? The IT team at work says to destroy the hard drive, and donate the PC and start over, that or take it to a local shop that specializes in malware/virus remove. Minimum bill there is $100. I would rather donate that to a new machine! I'm not against getting a new one, and 4 years is pretty old in computer years, but it works just fine other than the past infection.
What say you Bleeping sages?