Trojan Cloaks Itself as Firefox Extension

Wednesday, July 26, 2006

Security vendor McAfee has detected a new piece of malicious software that 
masquerades as part of the Firefox Internet browser.

McAfee calls the Trojan horse "FormSpy."
Trojan horses
are programs, often attached to spam e-mail, that appear innocuous but are 
harmful to a computer.

FormSpy is downloaded to a computer that is already infected with another 
Trojan horse called "Downloader-AXM," McAfee said. That Trojan was recently 
detected
in e-mail spam messages.

Downloader-AXM contacts servers to download other malicious programs to a 
computer without a user's knowledge, according to McAfee.

Once downloaded, FormSpy installs itself as a Firefox extension.

The program appears as "NumberedLinks 0.9" extension, McAfee said. The 
extension normally would allow a user to navigate links by numbers using the 
keyboard
rather than a mouse.

Then, FormSpy can transmit information in a Web browser to another Web site, 
which could include credit card numbers, passwords, and electronic banking
pin numbers, according to McAfee.

FormSpy can also steal e-mail, ICQ instant messaging service, and FTP (file 
transfer protocol) passwords, it said.

http://www.pcworld.com/resource/article/0,aid,126556,pg,1,RSS,RSS,00.asp

Vikas Kapoor,
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