Unlike earlier threats to mobile devices, such as the Cabir worm, Fontal doesn't attempt to spread from phone to phone. Phone users could be infected only by downloading the SIS file containing the Trojan from a Web site or peer-to-peer file-sharing network, F-Secure said. Malicious programs that run on mobile platforms such as Symbian have become more common since Cabir, the first mobile worm, was identified in August Variants of Cabir have since spread to 16 countries, including the U.
In March, antivirus companies also identified the first mobile phone worm, CommWarrior, that spreads using Mobile Messaging Service technology. Trojan horse programs have also been proliferating. In March, antivirus companies warned about the Drever. C Trojan, which infected Symbian phones and attempted to stop mobile antivirus software running on those devices.
Here are the latest Insider stories. More Insider Sign Out. Sign In Register. Sign Out Sign In Register. Latest Insider. Rootkits are typically installed by other malware to cover their traces. For example, a keylogger might siphon off passwords and credit card details, while the rootkit hides the traffic to keep the theft unbeknown to the user. Other cases involve Trojans that install a rootkit in order to create a botnet.
Trojans are malicious programs that misrepresent themselves to appear routine or helpful, but actually carry out hidden functions. Worms are malicious programs similar to viruses: they cause havoc on devices and are able to self-replicate.
Unlike viruses, which need human action to propagate, worms are able to send out hundreds of thousands of copies of themselves via email, or spread via USB devices and shared folders. Unlike most security vendors, Avira doesn't sell your data and never will.
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