02 Apr New malware specifically targets Firefox
Webroot has uncovered adware that targets the Firefox platform.
The malware resembles DNSChanger, a common DNS hijacking threat, but operates differently. Instead of hacking the registry to change DNS, the new variant throws a DLL into the C:\Program Files\Mozilla Firefox\components directory and therefore runs inside the browser.
This is not a vulnerability in Firefox in any sense; in order for this to happen the user has to run a malicious program as Administrator or some other privileged account. But it does show that some malware authors see enough potential in Firefox to write special malware for it. The use of a DLL does make the malware specific to Windows, although it may be possible to write versions for other platforms as well.
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