Bogus blogs snare fresh victims
The bogus web journals are being used as traps that infect visitor's machines with keylogging software or viruses.
Filtering firm Websense said it had found hundreds of bogus blogs baited with all kinds of malicious software to snare the unwary.
Websense warned that the baited blogs could get past traditional security measures that try to protect people from malicious programs.
The company said blogs were being used because they inadvertently offered lots of help to computer criminals.
Blogs are free and simple to use, offer users lots of storage space, can be used anonymously and most do not scan stored files for viruses and other malicious programs.
Websense said it had seen examples of some computer criminals creating a legitimate looking weblog, loading it with keylogging software or viral code, and then sending out the address of it through instant messenger or spam e-mail.
"These aren't the kind of blog websites that someone would stumble upon and infect their machine accidentally," said Dan Hubbard, Websense's research director. "The success of these attacks relies upon a certain level of social engineering to persuade the individual to click on the link."
Estimates indicate that there could be more than 200 bogus blogs in existence that are being used to attack net users.