What is trojan?
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What Does trojan Mean
From the Latin Troianus , trojan is an adjective that refers to that or that belonging to or related to the ancient city of Troy . The application of the term is linked to the legend of the Trojan Horse .
It is important to differentiate between the historical Troy and the legendary Troy . The true city of Troy was in the present Turkish province of Çanakkale (next to the Dardanelles Strait ). The legendary Troy, on the other hand, is one that is mentioned in epic poems such as the Iliad and the Odyssey .
It is believed that the so-called Trojan War took place sometime between 1250 BC and 1184 BC, without any details in this regard. It is believed that, following the abduction of Helen of Sparta by the Trojan prince Paris , the Mycenaean Greeks invaded Troy. The Trojans who managed to survive traveled to Carthage and later to the Italian Peninsula , where their descendants would found Rome .
Another unavoidable aspect when talking about this city is the story of the Trojan Horse . The myth tells that the Greeks sent a huge wooden horse to the Trojans as an offering to Athena. The Trojans accepted the gift and brought it into their city . At night, a group of Greek soldiers emerged from inside the horse, opened the gates of Troy and allowed the invasion.
This ruse is used by a type of malicious software known precisely as a Trojan. It is an apparently harmless application that is run by the user and ends up allowing remote access to the computer without the user noticing.
In the apparently infinite universe of the Internet , diverse classes of applications coexist and there are those who dedicate their time to the development of programs that aim to harm their users, be it through the elimination of some of their files, or the breakdown of their equipment. or some kind of scam.
Among the myriad forms that cyber attacks can take, Trojans are particularly well known, in part because they present the most variants . Most users are not aware of the name given to each type of Trojan, which is why they are often mistakenly labeled " virus ".
Some of the most common types of Trojans are described below, indicating their name and the damage they cause to their victims:
Backdoor Trojan : as its name indicates ("backdoor"), it is an application that opens an unconventional access channel in the system, which allows other malicious programs ( malware ) or people to enter it without problem any;
Trojan drooper : it has the peculiarity of executing other malicious applications when it is executed;
Trojan keylogger : its tasks consist of making a complete registry of the keys that the user presses, with the aim of stealing their confidential information (credit card numbers, passwords, personal data). There are also some capable of taking screenshots and silently sending them to their creators;
Trojan downloader : they aim to download other programs while they are running;
Trojan bot : turns a computer into a kind of zombie that, together with the rest of the computers attacked by it, will form a network known as a botnet .
Some common tips to avoid attacks by Trojans are:
* keep the operating system and its programs updated , especially the Internet browser;
* use a recommended Antivirus program, whose update should be a priority;
* use firewalls (also known as "firewalls" or "walls of fire");
* Avoid payments and virtual banking procedures from public places, such as Internet cafes.