What Is Java Trojan
Java Trojan is a series of malware infections detected as Trojan.MacOS.Java. These Trojans are created solely to perform different types of malicious spyware activities that may result in leaking your information and spying on everything you do while on your Mac. These types of viruses may pretend to be a Java update or may cause the infection via the Java programming code. In either case, it is best to remove such an infection properly and fully as soon as you have encountered it on your Mac.
Java Trojan Summary
| Name | Java Trojan, also known as Trojan.MacOS.Java.GBA |
| Type | Trojan Horse |
| Short Description | Aims to steal information from your Mac and perform spyware activities. |
| Symptoms | The Trojan aims to stay undetected with no symptoms, but a giveaway may be that it could be running process in Activity Monitor. |
| Distribution Method | Via virus URLs or files. |
| Detection Tool |
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Trojan.MacOS.Java – How Does It Spread?
Java Trojan is a part of a series of malware infections for macOS. Other Trojans that have also appeared on our radar for Macs include Postlo Mac Trojan, XcodeSpy Mac Trojan and Koiot Mac Trojan.
These Trojans typically end up being installed on your Mac by being automatically added to it via various e-mail spam schemes or even fake apps downloaded as files directly from the web.
If your computer has been infected via e-mail, then this malware may come as some type of important attached file, like a:
- Invoice or an e-receipt.
- Flight ticket.
- Document from your bank.
- Something work-related.
The attachments often are accompanied by some forms of important e-mail texts, like “your purchase has been revoked” or something that is very convincing towards opening the attachment on your Mac after downloading it, which triggers the infection.
Another infection method is if the virus infection file pretends to be some form of a fake app or a file downloaded from some shady websites. The most often cases of such files that “may damage your computer” includes:
- Keygens.
- Cracks.
- Patches.
- License activators.
- Fake portable apps.
Once the victim downloads and runs the file, infection with this virus is inevitable.
What Does the Trojan Do?
Once the Java Trojan infects your Mac, it may perform a wide range of malware activities, depending on what it has been configured to do. Some of the most damaging of those include:
- Copying and stealing your files.
- Deleting files.
- Taking screenshots.
- Downloading files and running them, like other malware.
- Logging the keystrokes you type.
- Stealing passwords you have saved on your browser
- Recording video and audio from your camera and microphone.
These are the main reason to consider removing Java Trojan as soon as you can from your Mac.
Is Java Trojan Dangerous?
Shortly said, yes. This type of trojan endangers your operating system and personal information, exposing you at various risks.
Remove Java Trojan Mac from Your Device
Java Trojan can be deleted from your Mac if you follow the removal instructions for Mac listed below. They are created with the main purpose to help delete this software completely and make sure all of its hidden files and processes are remediated. For the most effective removal, it is strongly recommended that you download and run a scan of your computer using an advanced Mac anti-malware. Such software has the capability of fully and effectively deleting Java Trojan from your Mac and making sure this Trojan does not steal any information from it.
Ventsislav Krastev
Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.
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Steps to Prepare Before Removal:
Before starting to follow the steps below, be advised that you should first do the following preparations:
- Backup your files in case the worst happens.
- Make sure to have a device with these instructions on standy.
- Arm yourself with patience.
- 1. Scan for Mac Malware
- 2. Uninstall Risky Apps
- 3. Clean Your Browsers
Step 1: Scan for and remove Java Trojan files from your Mac
When you are facing problems on your Mac as a result of unwanted scripts and programs such as Java Trojan, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.
Quick and Easy Mac Malware Video Removal Guide
Bonus Step: How to Make Your Mac Run Faster?
Mac machines maintain probably the fastest operating system out there. Still, Macs do become slow and sluggish sometimes. The video guide below examines all of the possible problems that may lead to your Mac being slower than usual as well as all of the steps that can help you to speed up your Mac.
Step 2: Uninstall Java Trojan and remove related files and objects
1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:
2. Find Activity Monitor and double-click it:
3. In the Activity Monitor look for any suspicious processes, belonging or related to Java Trojan:
4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.
5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to Java Trojan. If you find it, right-click on the app and select “Move to Trash”.
6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to Java Trojan. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.
7. Remove any leftover files that might be related to this threat manually by following the sub-steps below:
- Go to Finder.
- In the search bar type the name of the app that you want to remove.
- Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
- If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.
In case you cannot remove Java Trojan via Step 1 above:
In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:
1. Click on "Go" and Then "Go to Folder" as shown underneath:
2. Type in "/Library/LauchAgents/" and click Ok:
3. Delete all of the virus files that have similar or the same name as Java Trojan. If you believe there is no such file, do not delete anything.
You can repeat the same procedure with the following other Library directories:
→ ~/Library/LaunchAgents
/Library/LaunchDaemons
Tip: ~ is there on purpose, because it leads to more LaunchAgents.
Step 3: Remove Java Trojan – related extensions from Safari / Chrome / Firefox
Java Trojan-FAQ
What is Java Trojan on your Mac?
The Java Trojan threat is probably a potentially unwanted app. There is also a chance it could be related to Mac malware. If so, such apps tend to slow your Mac down significantly and display advertisements. They could also use cookies and other trackers to obtain browsing information from the installed web browsers on your Mac.
Can Macs Get Viruses?
Yes. As much as any other device, Apple computers do get malware. Apple devices may not be a frequent target by malware authors, but rest assured that almost all of the Apple devices can become infected with a threat.
What Types of Mac Threats Are There?
According to most malware researchers and cyber-security experts, the types of threats that can currently infect your Mac can be rogue antivirus programs, adware or hijackers (PUPs), Trojan horses, ransomware and crypto-miner malware.
What To Do If I Have a Mac Virus, Like Java Trojan?
Do not panic! You can easily get rid of most Mac threats by firstly isolating them and then removing them. One recommended way to do that is by using a reputable malware removal software that can take care of the removal automatically for you.
There are many Mac anti-malware apps out there that you can choose from. SpyHunter for Mac is one of the reccomended Mac anti-malware apps, that can scan for free and detect any viruses. This saves time for manual removal that you would otherwise have to do.
How to Secure My Data from Java Trojan?
With few simple actions. First and foremost, it is imperative that you follow these steps:
Step 1: Find a safe computer and connect it to another network, not the one that your Mac was infected in.
Step 2: Change all of your passwords, starting from your e-mail passwords.
Step 3: Enable two-factor authentication for protection of your important accounts.
Step 4: Call your bank to change your credit card details (secret code, etc.) if you have saved your credit card for online shopping or have done online activiites with your card.
Step 5: Make sure to call your ISP (Internet provider or carrier) and ask them to change your IP address.
Step 6: Change your Wi-Fi password.
Step 7: (Optional): Make sure to scan all of the devices connected to your network for viruses and repeat these steps for them if they are affected.
Step 8: Install anti-malware software with real-time protection on every device you have.
Step 9: Try not to download software from sites you know nothing about and stay away from low-reputation websites in general.
If you follow these reccomendations, your network and Apple devices will become significantly more safe against any threats or information invasive software and be virus free and protected in the future too.
More tips you can find on our MacOS Virus section, where you can also ask any questions and comment about your Mac problems.
About the Java Trojan Research
The content we publish on SensorsTechForum.com, this Java Trojan how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific macOS issue.
How did we conduct the research on Java Trojan?
Please note that our research is based on an independent investigation. We are in contact with independent security researchers, thanks to which we receive daily updates on the latest malware definitions, including the various types of Mac threats, especially adware and potentially unwanted apps (PUAs).
Furthermore, the research behind the Java Trojan threat is backed with VirusTotal.
To better understand the threat posed by Mac malware, please refer to the following articles which provide knowledgeable details.