Trojan.PWS.ChromeInject.B: A New Dangerous Threat For Firefox 3.0 Users
In the Defence Center section of BitDefender official website was published the information related to a new dangerous threat that affects Firefox 3.0 users. The virus discovered is called Trojan.PWS.ChromeInject.B and its presence can be detected if the next two files exist in the Mozilla Firefox installation folder: npbasic.dll situated in the plugins directory and browser.js in chrome directory.
The executable file is actually a Firefox 3.0 plugin and the JavaScript one is detected by Bitdefender as: Trojan.PWS.ChromeInject.A. It runs every time Firefox is started and filters tens of URLs associated to websites offering financial and online banking services with the help of the JavaScript file.
The result of virus action is materialized in sending of user login details to a certain recipient.Firefox 2.x browsers are not affected by this virus threat, but by upgrading to the version 3.0.x they will be also exposed to Trojan.PWS.ChromeInject.B.
During the evolution of Firefox, many security leaks were discovered, but the frequency of the upgrades reduce the risk of infection with the current malware targeted to attack a user computer through the Firefox browser. For example, many antivirus programs could give fake alarms about supposed “viruses” existing in the Firefox cache. Firefox, by default does not launch the files downloaded in the cache and as a consequence the risk of computer infection is low in this case.
You can check the presence or absence of Trojan.PWS.ChromeInject.B virus in the Firefox installation folder by using the BitDefender antivirus solution. The usage of suspect extensions published on websites different than the Firefox Add-Ons official one is not recommended in order to minimize the number of possibilities of infection with similar malware.
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