I'm having no problems with any sort of warnings for malware from Avast. Someone either hacked the site and inserted code with a false positive, or someone clicked on a bad ad and reported, or their browser reported, that it was infected as a result of clicking the link or downloading something.
Sounds like it is not a big deal, just a warning that needs to be removed.
Google's results help shed some light on it I think:
Diagnostic page for redszone.com
What is the current listing status for redszone.com?
Site is listed as suspicious - visiting this web site may harm your computer.
Part of this site was listed for suspicious activity 1 time(s) over the past 90 days.
What happened when Google visited this site?
Of the 7 pages we tested on the site over the past 90 days, 1 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2011-05-15, and the last time suspicious content was found on this site was on 2011-05-15.
Malicious software includes 1 exploit(s). Successful infection resulted in an average of 1 new process(es) on the target machine.
Malicious software is hosted on 1 domain(s), including 220.127.116.11/.
This site was hosted on 1 network(s) including AS40244 (TURNKEY).
Has this site acted as an intermediary resulting in further distribution of malware?
Over the past 90 days, redszone.com did not appear to function as an intermediary for the infection of any sites.
Has this site hosted malware?
No, this site has not hosted malicious software over the past 90 days.
How did this happen?
In some cases, third parties can add malicious code to legitimate sites, which would cause us to show the warning message.
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