Last week a friend told me that her sister's computer was infected with a rogue and he had great difficulty in extricating the. The term "rogue" fueled my curiosity: I had a clue what it was! So I asked some questions to Kamal , our computer security expert.
Elodie: Can you explain what a rogue?
Kamal : "The rogue is a malicious program that pretends to the user that his computer is infected with a virus and asks to install a fake software disinfection charges. "
How can you be infected with a rogue?
"There are several potential sources of contamination:
An advertisement on a website is disguised as a window warning of type 'your computer has been infected with machin_truc. Click here to remove it. '
A program illegally acquired and / or which we do not know the source.
Some toolbars for browsers.
Examples of infections that I have quoted the result of a voluntary action of the user. He set up something. But some rogues can happen on a PC in ways much more pernicious as security vulnerabilities in operating systems or web browsers or e-mail.
What are the risks associated with rogues?
"The main risk is to see his bank details 'diverted' if the user makes a payment by credit card to buy the 'wrong' software disinfection. Then, depending on the type of spawn:
If the rogue only takes the shape of a regular application that opens windows on the computer while the user is not requested, the computer does not generally undergo damage. That said, the inadvertent opening window can be very painful in the long run!
If the rogue hosts a virus, it can cause malfunction 'normal' in such cases (eg, loss of data ...)
If the rogue hosts a Trojan, it can open a "door" on the computer to a hacker can come and steal information.
Finally, sometimes a rogue uses the infected computer as a relay to spread to other machines. "
How to spot a rogue?
"To persuade the user to install the 'false' software disinfection, rogue trying to scare the user, a window appears and simulates an infection. Above all, do not click on that window let alone install software proposed, then we have not asked or sought. For more fool us, you can take the appearance of rogue software that is knows! Again, just a good look at what appears on the screen to detect anomalies in relation to a 'real' software. A bit like an attempt to phishing , the rogue may at first glance look like a vaguely known software, but looking more ready, easily identifies it as a theft (eg software installed in English even though you have not installed a French translation ... approximate). "
How to uninstall a rogue?
"If it is just a 'false' software that brings up the windows, just uninstall it from the Windows Control Panel, under 'Add / Remove Programs'. If it is 'malicious software that has interfered in the computer, perform a full scan of the computer with security software such as performance Securitoo AntiVirus Firewall . " In summary, it is sufficient to show a little common sense to guard against a rogue: you should never click on a window suspected, let alone download any software of unknown origin and of course, does never enter banking information if you do not have 100% of the visited site.
No comments:
Post a Comment