I wouldn't worry. It's probably due to someone's .sig image being hosted on that site.
If you turn off the images in the control panel, I expect the warnings will go away.
Arc#314490: Zombie Ninja Pirates!
Defiant @Grouchybeast
Death is part of my attack chain.
Grouchybeast is correct. If you can, the next time you get that message try to figure out whose avatar is causing it and let them know, that's what I did the last time I got a malware warning from the forum (which was a couple years ago, IIRC).
"You don't lose levels. You don't have equipment to wear out, repair, or lose, or that anyone can steal from you. About the only thing lighter than debt they could do is have an NPC walk by, point and laugh before you can go to the hospital or base." -Memphis_Bill
We will honor the past, and fight to the last, it will be a good way to die...
A couple of thread I've tried to look at on forums have brought up this message.
boards.cityofheroes.com contains content from www.allbestavatars.com, a site known to distribute malware. Your computer might catch a virus if you visit this site.
Google has found that malicious software may be installed onto your computer if you proceed. If you've visited this site in the past or you trust this site, it's possible that it has just recently been compromised by a hacker. You should not proceed. Why not try again tomorrow or go somewhere else?
We have already notified www.allbestavatars.com that we found malware on the site. For more about the problems found on www.allbestavatars.com, visit the Google Safe Browsing diagnostic page.
If you understand that visiting this site may harm your computer, proceed anyway.
Help improve detection of malware by sending additional data to Google about sites on which you see this warning. This data will be handled in accordance with the Safe Browsing privacy policies.
Too many 50's to list here's a few you may know.
Slazenger, Area51, Area53, Area54, Erruption, Mind Plague, Thresher, Sheath, Broadside, Debt