Semalt: How To Get Rid Of Trojan Horses
What people refer to as a Trojan horse or simply a Trojan is malware, which pretends to be something sincere to trick the user into downloading it. It could take the form of a media player, a file attached to an email, a web page, or an application for a smartphone. Users may find the information quite convincing, enough for them to open it, which consequently installs malware. Trojans may take the form of a file. They may masquerade as image files, office documents, sound files, or online games.
Julia Vashneva, the Senior Customer Success Manager of Semalt, says that there are two distinctions between Trojans and viruses or worms. For the case of Trojans, they do not have the capability of replicating themselves or spreading independently as viruses or worms do. Second, their developers come up with them for malicious intent while viruses and worms are either accidental or benign.
What Do Trojans Do
As noted above, Trojans may take different forms, and they have code that makes them capable of doing just about anything on the computer. They are set up to initiate whenever the user restarts the computer. Once installed, it creates a back entry to a remote user, usually cyber-criminals, into the system giving them control of the computer. It may result in the locking out of the owner. All of these actions run silently and secretly. They may even disable a running anti-virus program without the user's knowledge.
Some of the existing Trojans install keyloggers, which act as spyware that takes note of user activities on the keyboard, monitor internet usage, and collect personal information. Others allow for the installation of botnet software, which connects the computer with other zombie computers controlled by hackers. Botnets have multi-purpose features. They can launch DDoS (Distributed Denial of Service) attacks to create website jams, generating spam email, cracking encryptions, or stealing login credentials and passwords.
The most common medium for Trojan installations is through drive-by downloads. What happens is that hackers change a website's code to download malware whenever a user visits it automatically. If a user's account has privileges to modify software, when they download the Trojan, then it will automatically install itself.
Third party app stores serve as common places where hackers hide Trojans. They pretend to merchants offering cheaper versions of mobile applications. Before downloading and installing an application, users need to review the documentations and permissions that the software requests. Apple products are probably safe unless the owner does not "jail break" their device.
Trojans are very difficult to detect. If one suspects its existence in their system, they should use the "packet sniffer," which analyzes all traffic associated with the system while looking for any communication with servers suspected to be under cybercriminal control. Even so, there are certain anti-virus programs which are sufficient enough to get rid of Trojans.
Preventing Trojan Infections
First, structure the user account to only use its full administrative rights on rare occasions. Also, they should limit the rights to installing or updating software. Use limited accounts for all other activities involving the internet, as they cannot modify applications.
Second, make sure firewalls remain active for all home networks. Most operating systems have inbuilt firewalls, and so do the wireless routers. Finally, a robust anti-virus software that conducts regular scans helps prevents infections. Always make sure to update it regularly.