Tech support from iYogi for Trojan removal using Norton® security software
A Trojan, which is sometimes called aÂ Trojan horse, is malware that cannot replicate itself. It appears to
How does Norton security software remove Trojans from your computer?
perform a desirable function for the user, but it actually facilitates the hackers to gain unauthorized access to the user’s computer system. Norton security software have several features for the detection andÂ removal of Trojan. It monitors almost all program files for harmful codes while installing and running. It also controls the access area for any software. Techniques used by Norton security software for removing Trojans are as follows:
Norton for removing Trojans are as follows:
- Signature based detection
- Rootkit detection
Signature based detection
Norton programs use the signatures of viruses and other malicious software, to detect and remove Trojans.Norton AntiVirusÂ is powered by Symantec Antivirus Research Center (SARC). SARC has an expert team to research and find any new threats. The SARC team is working round-the-clock to identify any new Trojans or spyware. When they detect a new threat, they first analyze it and then make a signature. That signature is provided in the central update server, so that all Norton clients can get the new signature. Using these signatures, Norton software is able to detect and remove Trojans. Norton also allows its users to upload any new variant of Trojans or any suspicious files for analysis.
Besides the Trojans signature based detection system, Norton programs use a Heuristics analysis system to ensure computer protection. A Trojan may start as only a single variant, but might be modified by other attackers into different variants. By using the Heuristics analysis technique, Norton can identify a number of variants of a Trojan using a single signature file. Heuristics is a technique that detects viruses using a generic signature. The Symantec research team finds common areas that all variants of a Trojans share uniquely and create a single generic signature. These signatures often use wildcard characters that contain non-contiguous code. The wildcards allow the scanner to detect Trojans with extra or meaningless code.
Rootkit is an advanced type of virus that can hide its presence. It changes the operation of the operating system, and often attacks the antivirus software. Norton advanced protection system can detect and remove rootkits using a bootable tool.
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