One of the most common infection points for Trojan horses, worms, and other forms of malicious content is email. This is a factor that hackers take advantage of by hiding malicious codes and programs inside the attachment. However, email is not the only common Trojan infection point.
Most Internet security suites warn users about the compromised nature of particular websites. Visiting a website with a poor security certificate or proceeding after a warning is not advisable as this site is believed to be or known to be the source of Trojan horses. Pop-up windows and suggested download links on these types of sites is also another source of Trojan threats. Knowledge and security measures are the best defense against Trojan horse malware and other malicious content.
Internet security software programs can run regular diagnostic scans to check for sites with known malicious content. Updating operating system software when updates are released is important as hackers tend to target holes in outdated systems when launching malware attacks.
Users should focus on protecting accounts with complex, unique passwords for each account. For example, using letters, numbers, and symbols in passwords. Firewalls can also help keep personal information safe.
It is also advisable to be cautious with any email attachments and run scans on any email attachment before downloading. This will help restore data in the event of Trojan horse threats. If a user discovers a Trojan horse it can be removed using manual operations or software programs. Removing a Trojan can be difficult because it is possible for hidden files to exist on the computer.
If a Trojan horse is discovered, the malicious threats can be removed by. While you can follow these manual steps on a personal computer, it is not an effective approach for Trojan viruses that infect enterprise computer systems. In this case, the situation can be very complex and the best approach is to seek outside help. If worms, malicious codes, and other threats have been downloaded and activated, removal can restore the integrity of the computers involved.
However, the user might still wonder if the computer is safe. How does the user know for sure that a computer is safe? Well, for starters, users can exercise greater caution when encountering email attachments or visiting suspicious websites. Banker Trojans -This type of Trojan specifically targets personal information used for banking and other online transactions. Distributed Denial of Service DDoS Trojans - These are programmed to execute DDoS attacks, where a network or machine is disabled by a flood of requests originating from many different sources.
Downloader Trojans -These are files written to download additional malware, often including more Trojans, onto a device. Because Trojans are used as a delivery device for a number of different types of malware, if you suspect your device may have been breached by a Trojan, you should look for many of the same telltale signs of malicious software. These may include:. Poor device performance- Is your computer or mobile device running slowly or crashing more frequently than normal?
Pop-up and spam interruptions- Are you noticing an uptick in the number of interruptions from browser pop-ups or email spam? Enter any unrecognized file names or programs into a search engine to determine if they are recognized Trojans. Backdoor Trojans. Backdoors give external hackers control over your computer. With a backdoor trojan, a criminal tricks you into letting them remotely access and command your computer. Botnet Trojans. The botnet might take down an entire website through a distributed denial of service attack, for example.
Where do Trojan viruses come from? Email with a malicious attachment. Some of the more standard ways to get a Trojan virus are listed below: Malicious emails. Email messages purporting to be from a legitimate sender but containing malicious attachments or links commonly have Trojans. These emails might link to elaborate websites that impersonate real software download pages pixel-for-pixel. Peer-to-peer downloads. Malicious advertising commonly results in malware installations.
Unscrupulous ad buyers put fake download buttons next to real download buttons, encouraging users to click the wrong thing. These ads often contain Trojan horses. Can a Trojan virus be removed?
Examples of Trojans Like other types of malware, Trojans have been involved in all sorts of major examples of cybercrime. It downloads and installs new versions of malicious programs. These can include Trojans and adware. This Trojan seeks a ransom to undo damage it has done to your computer. This Trojan can give an attacker full control over your computer via a remote network connection.
Its uses include stealing your information or spying on you. A rootkit aims to hide or obscure an object on your infected computer. The idea? To extend the time a malicious program runs on your device. This type of Trojan infects your mobile device and can send and intercept text messages. Texts to premium-rate numbers can drive up your phone costs.
This Trojan takes aim at your financial accounts. That includes banking, credit card, and bill pay data. Trojan malware attacks can inflict a lot of damage. At the same time, Trojans continue to evolve. Here are three examples. They can also impact your mobile devices, including cell phones and tablets. In general, a Trojan comes attached to what looks like a legitimate program. In reality, it is a fake version of the app, loaded up with malware.
Cybercriminals will usually place them on unofficial and pirate app markets for unsuspecting users to download. In addition, these apps can also steal information from your device, and generate revenue by sending premium SMS texts. One form of Trojan malware has targeted Android devices specifically. The result? Cybercriminals could redirect traffic on the Wi-Fi-connected devices and use it to commit various crimes.
Trojans take their name from the hollow wooden horse that the Greeks hid inside of during the Trojan War. The Trojans, thinking the horse was a gift, opened their walled city to accept it, allowing the Greeks to come out of hiding at night to attack the sleeping Trojans.
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