Google Safe Browsing is getting out of control. It listed boxoffice.com as a malicious site. If you look at the diagnostic page for that site, you'll see the site hasn't hosted any malicious content...it was hosted on the same network as some other malicious sites.

http://safebrowsing.clients.google.com/safebrowsing/diagnostic?client=Firefox&hl=en-US&site=http://boxoffice.com/

So Google's now punishing perfectly legitimate sites for being hosted on the "wrong" networks.

Hi Heidegger
You might want to check your Webmaster Tools account, in particular the "Malware Details" feature in Labs there. It'll probably point you to something that might be hacked. For more information, check out our blog post on this at http://googleonlinesecurity.blogspot.com/2009/10/show-me-malware.html and for more help regarding your particular site, feel free to post in our Help Forum, where a lot of experienced people can help you to find the exact issue as quickly as possible: http://www.google.com/support/forum/p/Webmasters/label?lid=2fe2a8ee8e37c08e&hl=en

http://safebrowsing.clients.google.com/safebrowsing/diagnostic?site=http://google.com

Safe Browsing
Diagnostic page for google.com

What is the current listing status for google.com?

This site is not currently listed as suspicious.

Part of this site was listed for suspicious activity 2 time(s) over the past 90 days.

What happened when Google visited this site?

Of the 119609 pages we tested on the site over the past 90 days, 10 page(s) resulted in malicious software being downloaded and installed without user consent. The last time Google visited this site was on 2010-02-01, and the last time suspicious content was found on this site was on 2010-01-25.

Malicious software includes 5 scripting exploit(s), 3 trojan(s). Successful infection resulted in an average of 1 new process(es) on the target machine.

Malicious software is hosted on 41 domain(s), including mayatek.info/, xpresscanon-yourpc.com/, mandeibem.com.br/.

23 domain(s) appear to be functioning as intermediaries for distributing malware to visitors of this site, including mayatek.info/, alittehad.net/, adminsparadise.com/.

This site was hosted on 6 network(s) including AS15169 (Google Internet Backbone), AS20940 (AKAMAI), AS6648 (BAYAN).

Has this site acted as an intermediary resulting in further distribution of malware?

Over the past 90 days, google.com appeared to function as an intermediary for the infection of 12 site(s) including apostei.net/, www.jazaan.com.googlepages.com/, munnainfo.tk/.

Has this site hosted malware?

Yes, this site has hosted malicious software over the past 90 days. It infected 2 domain(s), including bestray.biz/, docs.google.com/doc/.

...
Updated 27 hours ago

JohnMu, this isn't my site. I just visit it regularly. I'm just surprised by how Google is classifying sites as "suspicious"

Google is doing a great job for computer security.

Heidegger From having looked at many, many sites that have been flagged through our Safe Browsing API, there's generally a reason for this – and in this case, it looks like the site was able to clean it up and get it reviewed already, so I don't think it makes sense to go into the details here unless the webmaster still has questions about it.

I know getting hacked and flagged for having or distributing unsafe content can be a pain, as is of course getting malware through a website... I'm glad we have teams here to work on this problem and feel that we're working to make the web a safer place, not only by flagging malware but also by helping webmasters recognize security issues with their sites (that allowed attackers to modify the content in the first place).