Juha-Matti Laurio writes "The antivirus specialists at McAfee have warned of a Trojan that disguises itself as a Firefox extension. The trojan installs itself as a Firefox extension, presenting itself as a legitimate existing extension called numberedlinks. It then begins intercepting passwords and credit card numbers entered into the browser, which it then sends to an external server. The most dangerous part of the issue is that it records itself directly into the Firefox configuration data, avoiding the regular installation and confirmation process."
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