According to the developer:
This plugin interacts between Quttera’s Web Investigation Server (WIS) using HTTP interfaces and impose malware investigation of specified domain. The Quttera’s WIS are very good at security and can always help you out in dealing with security and malware cleaning of your blog.
This plug in is really very easy to use, operate and install.
How to install Quttera Web Malware Scanner
1. Go to your WordPress Admin. Go to Pugins page and Click on ‘Add New’ Button. You can search for your Quttera Web Malware Scanner plugin there are or you can download the plugin and then upload it to your WordPress installation.
2. Activate the plugin.
How to use Quttera Web Malware Scanner
1. After the installation of the plugin is complete, you can see the Quttera Scanner option into the left WordPress menu. Click on that option.
2. Check whether the domain name is alright and Quttera Server name is ‘http://wp.quttera.com’. Click on ‘Scan my website’ button.
3. The process will start, it might take some time to scan your website. Wait till it finishes. After the process finishes it would show you the Website Investigation Result.
Under this result report, you could be able to know the Clean Files, Potentially Suspicious file, Malicious Files and Suspicious Files. You could be able to view the report for each scan able file of your WordPress. This tool is really nice an easy to use.
Click here to download Quttera Web Malware Scanner.
You might also want to check out Website Defender.