Ask the Expert

How to secure a website containing badware (banner82)

My website is being listed as one with badware. Previously, an old bulletin board that had been kept as a backup did contain bad code (banner82), but that has been removed. My hosting service and I have scanned the website several times without result. What is the best next step to secure the site?

    Requires Free Membership to View

First, be sure that you are looking into root-cause analysis and not the symptoms of the problem. Remember, banner82 "badware" compromises are often the result of a SQL injection attack. There are other vectors, but the existence of that code proves that there was some sort of malicious compromise, and it's critical to find out exactly how it happened.

Next, you need to work with to get your site off of its list of domains known to host programs that seek to perform malicious or unwelcome actions on a user's computer, i.e. spyware, malware or deceptive adware. Google uses to develop a list of potentially malicious sites and help warn users before they actually visit them. To have Google stop singling out your content, you will need to have Google re-crawl your site. Learn more about Google Webmaster Tools to do this. Failing that, send an email to The team there will help identify why your site is being flagged for badware and how to clean it up. has an excellent write-up on how it assesses websites for malicious software. Some possibilities include that the site may have had its source code altered, it may be hosting malware as an advertisement (yes, you are responsible for the ads on your site), or you may be linking to a site that is hosting malware.

More information:

This was first published in January 2009

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: