Weird Connections to Router

[Eleventeen]

Hi guys! Last night I ran into a weird connection issue which I'm not sure is malware related.

First, off, let me say that I'm always careful when browsing the interwebs - I only visit a handful of trusted sites, including a forum that I run, I never visit questionable sites, never open attachments except when I absolutely trust the contents, and I run Chrome with JS and plugins disabled unless I absolutely trust the site. I also run Avast Internet Security (minus firewall), Comodo Internet Security, and MBAM Pro (recent convert from free ). I scan regularly with both avast and MBAM, several times per week, just in case something slipped by. I also run Chrome sandboxed with Sandboxie. No one has access to my PC other than me.

So anyways, I was browsing with Chrome last night (my forum), got up to grab a snack, came back, and noticed some hard drive activity (hdd indicator light was on). I opened Comodo's active connection log and spotted over 100 connections from my PC to port 4444 of my router, a Dlink DIR 655. I immediately scanned with MBAM and Avast - both scans came up clean. I also scanned again today, did an Avast boot time scan, and a full scan with MBAM - still clean.

Now, the Speedguide page for port 4444 indicates a bunch of nasties use that port, and some legit software. But MBAM/Avast would have detected those things, correct? and, those nasties would connect to a remote address, not my router, right? I haven't seen any connections to port 4444 since last night. There aren't any programs listening for connections, but I've blocked any connections to port 4444 (ingress and egress) for now.

I noticed that Chrome background updated last night around the same time this happened. Is it possible that's what happened?

I might be overly paranoid, but I just want to make sure that something isn't wrong. Thanks guys for any advice!

[Firefox]

Hello and

It is hard to say what may have happened...., but if you want to be sure you don't have some sort of an infection follow the instructions below....

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