Agent as downloader horse trojan

Indications of a Trojan being active on a device include unusual activity such as computer settings being changed unexpectedly. The original story of the Trojan horse can be found in the Aeneid by Virgil and the Odyssey by Homer. In the story, the enemies of the city of Troy were able to get inside the city gates using a horse they pretended was a gift. The soldiers hid inside the huge wooden horse and once inside, they climbed out and let the other soldiers in.

Unlike computer viruses , a Trojan horse cannot manifest by itself, so it needs a user to download the server side of the application for it to work. This means the executable. A Trojan virus spreads through legitimate-looking emails and files attached to emails, which are spammed to reach the inboxes of as many people as possible.

When the email is opened and the malicious attachment is downloaded, the Trojan server will install and automatically run every time the infected device is turned on. Devices can also be infected by a Trojan through social engineering tactics, which cyber criminals use to coerce users into downloading a malicious application. The malicious file could be hidden in banner advertisements, pop-up advertisements, or links on websites.

A computer infected by Trojan malware can also spread it to other computers. A cyber criminal turns the device into a zombie computer, which means they have remote control of it without the user knowing.

Hackers can then use the zombie computer to continue sharing malware across a network of devices, known as a botnet. For example, a user might receive an email from someone they know, which includes an attachment that also looks legitimate.

However, the attachment contains malicious code that executes and installs the Trojan on their device. The user often will not know anything untoward has occurred, as their computer may continue to work normally with no signs of it having been infected.

The malware will reside undetected until the user takes a certain action, such as visiting a certain website or banking app. Depending on the type of Trojan and how it was created, the malware may delete itself, return to being dormant, or remain active on the device. Trojans can also attack and infect smartphones and tablets using a strand of mobile malware. This could occur through the attacker redirecting traffic to a device connected to a Wi-Fi network and then using it to launch cyberattacks.

There are many types of Trojan horse viruses that cyber criminals use to carry out different actions and different attack methods. The most common types of Trojan used include:. A Trojan horse virus can often remain on a device for months without the user knowing their computer has been infected.

However, telltale signs of the presence of a Trojan include computer settings suddenly changing, a loss in computer performance, or unusual activity taking place.

The best way to recognize a Trojan is to search a device using a Trojan scanner or malware-removal software. Trojan attacks have been responsible for causing major damage by infecting computers and stealing user data. Well-known examples of Trojans include:.

In order for a Trojan horse to spread, it must first be downloaded onto your computer. This can happen when you open an email attachment containing an infected file, or through an exploit kit. This creates what is called a back door, where the trojan downloader can download and install new versions of malicious programs, including more Trojans and adware, for example.

The back door can also provide access to a system, and any confidential or personal information may be compromised. Security for your devices, your online privacy, and your identity. All rights reserved. Firefox is a trademark of Mozilla Foundation. App Store is a service mark of Apple Inc. Alexa and all related logos are trademarks of Amazon. Microsoft and the Window logo are trademarks of Microsoft Corporation in the U.

The Android robot is reproduced or modified from work created and shared by Google and used according to terms described in the Creative Commons 3. A virus is a very strong and dangerous computer threat. You should take actions to delete it immediately so that it cannot damage your machine further. A virus usually comes bundled with other Trojan infections 2. A virus causes slowdown of your PC performance 4. A virus hijacks your internet browsers and displays large amounts of pop-up ads 5.

A virus may steal your computer privacy. Quick Menu. NOTE — Please bookmark this page first, because some steps will require you to restart your web browser or computer. A or malware, and then right-click on it and click End Process or End Task. Type control panel in the Run window and click OK button;. In Control Panel, click Uninstall a program under Programs ;. A; Right-click on the malicious program and click Uninstall. A completely, we recommend downloading SpyHunter Aniti-malware to scan entire system and delete all malicious files.

Remove Threats with SpyHunter Anti-malware. Free Remover allows you, subject to a hour waiting period, one remediation and removal for results found. See more Free SpyHunter Remover details. Microsoft Edge. Start Edge: Click the More … button ahe tog right corner and click Extensions :. Select the extensions you want to remove and click Remove:.

Click the menu button and choose Add-ons. The Add-ons Manager tab will open. Open the IE, click the Tools button , and then click Manage add-ons.