Well this is an interesting piece of news for the day. This is one of those things that you thought were bound to happen, but it doesn’t mean you have to be happy about it.
Virus writers have created a spyware package that poses as an extension to the Firefox web browser. FormSpy, which poses as the legitimate NumberedLinks 0.9 extension, is programmed to steal confidential information from compromised machines including passwords, credit card numbers, and ebanking login details. The malware is also capable of sniffing passwords from ICQ, FTP, and email traffic before sending this data to a hacker-controlled website.