Following the recent reports that hackers managed to break into the Windows Live Hotmail CAPTCHA and to create email accounts for spamming purposes, another web-service gets compromised with the same goal. Google’s Blogger, the free blogging platform which lets users create blogs and post messages from a web-based administration panel, is now being used by spammers to build page redirectors and websites hosting malicious files.

According to security company Websense, the entire process is done with the help of automated applications which do nothing more than to create lots of accounts using predefined settings. Although the CAPTCHA were especially implemented to prevent such cases, the attackers have developed advanced bots which bypass them and create Blogger accounts.

“Spammers have managed to create automated bots that are capable of not only signing up and creating Blogger accounts (using spammer account credentials), but also use these accounts as redirectors and doorway pages for advertising their products and services,” Websense wrote in an entry published on its blog.