Firefox Addons, Vírus, Malwares and Linux

An report sent in 2008 warned that a Firefox update file in the official Moziila Vietnamese server was infected with a malware.

2 years later a new report inform that the Sothink Web Video Downloader 4 firefox plugin is infected with a password sniffer called Win32.LdPinch.gen and the Master Filer is infected with a backdoor trojan called Win32.Bifrose.

Actually only Windows users are affected by these pests, because these users set your accounts with administrative privileges allowing privileged access to system files.

In the report exist a list some AVs that detect the infected files also indicating the Virus Total online service.

A friendly tip don’t pass your machines protection only to AVs. Today viruses and malwares have the ability to detect and disable the AV installed. The ideal is to divide this responsibility with a personal firewall.

There are solutions that combine personal firewall + IPS + AV + Antispam, extending the protection against these threats.

* Ordinary users don’t have write permission in the system;
* Normally, the users files is located in your /home, simply delete your profile for the system back to nomal. At least in theory.
* Haven’t a large installed base of desktops.

I recommend that Linux users to install the Firestarter as an extra security layer, being a excellent GUI for maintenance of the iptables, once installed it denies any external access to the machine by default.

Reference

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