Mavradoi, also known as TrojanDownloader:Win32/Mavradoi.B is a Trojan infection that can download and install different programs on the affected machine without the user’s consent. The threat is typically distributed to the targeted system via malicious email attachments or through corrupted websites. Malware experts recommend using legitimate anti-malware application to remove Mavradoi permanently from your PC.
How Does Mavradoi Affect the Targeted Computer?
Trojans are used for various purposes, mainly to help hackers gain access to the compromised computer by connecting to a remote server. In the case of Mavradoi, this is agir.barbacena.mg.gov.br (using port 80). Trojans have the ability to block security tools, bypass detection and their presence on the affected machine can result in reduced system performance. The latter is usually due to heavy processor and network usage.
Cyber crooks may use Mavradoi to:
- Upload and download files (including adware and PUPs)
- Steal sensitive information
- Employ the PC in a botnet
- Modify or delete files
- Receive instructions from the C&C server
Experts with Microsoft report that the Mavradoi Trojan can be detected through the following system modification:
→In subkey: HKCU\software\microsoft\windows\currentversion\run
Sets value: “java32run”
With data: “
How Does Mavradoi Enter Your PC?
Trojans are usually distributed to the user’s system via:
- Malicious attachments or links in spam email messages
- Bundled with other software available for download online
- Corrupted websites
Malware researchers recommend performing your downloads from trusted sources and never opening emails from unknown senders.
How to Remove Mavradoi from Your Computer?
Trojans are known for their stealth behavior on the compromised PC, which makes them quite hard to detect. This is why our experts recommend running a full scan of your system and then removing the threat in Safe Mode. The detailed instructions below will help you delete Mavradoi permanently from your PC.
Spy Hunter scanner will only detect the threat. If you want the threat to be automatically removed, you need to purchase the full version of the anti-malware tool. Find Out More About SpyHunter Anti-Malware Tool
Preparation before removing Mavradoi.
Before starting the actual removal process, we recommend that you do the following preparation steps.
- Make sure you have these instructions always open and in front of your eyes.
- Do a backup of all of your files, even if they could be damaged. You should back up your data with a cloud backup solution and insure your files against any type of loss, even from the most severe threats.
- Be patient as this could take a while.
- Scan for Malware
- Fix Registries
- Remove Virus Files
Step 1: Scan for Mavradoi with SpyHunter Anti-Malware Tool
Step 2: Clean any registries, created by Mavradoi on your computer.
The usually targeted registries of Windows machines are the following:
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
- HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
- HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
You can access them by opening the Windows registry editor and deleting any values, created by Mavradoi there. This can happen by following the steps underneath:
Step 3: Find virus files created by Mavradoi on your PC.
1.For Windows 8, 8.1 and 10.
For Newer Windows Operating Systems
1: On your keyboard press + R and write explorer.exe in the Run text box and then click on the Ok button.
2: Click on your PC from the quick access bar. This is usually an icon with a monitor and its name is either “My Computer”, “My PC” or “This PC” or whatever you have named it.
3: Navigate to the search box in the top-right of your PC's screen and type “fileextension:” and after which type the file extension. If you are looking for malicious executables, an example may be "fileextension:exe". After doing that, leave a space and type the file name you believe the malware has created. Here is how it may appear if your file has been found:
N.B. We recommend to wait for the green loading bar in the navigation box to fill up in case the PC is looking for the file and hasn't found it yet.
2.For Windows XP, Vista, and 7.
For Older Windows Operating Systems
In older Windows OS's the conventional approach should be the effective one:
1: Click on the Start Menu icon (usually on your bottom-left) and then choose the Search preference.
2: After the search window appears, choose More Advanced Options from the search assistant box. Another way is by clicking on All Files and Folders.
3: After that type the name of the file you are looking for and click on the Search button. This might take some time after which results will appear. If you have found the malicious file, you may copy or open its location by right-clicking on it.
Now you should be able to discover any file on Windows as long as it is on your hard drive and is not concealed via special software.
Mavradoi FAQ
What Does Mavradoi Trojan Do?
The Mavradoi Trojan is a malicious computer program designed to disrupt, damage, or gain unauthorized access to a computer system. It can be used to steal sensitive data, gain control over a system, or launch other malicious activities.
Can Trojans Steal Passwords?
Yes, Trojans, like Mavradoi, can steal passwords. These malicious programs are designed to gain access to a user's computer, spy on victims and steal sensitive information such as banking details and passwords.
Can Mavradoi Trojan Hide Itself?
Yes, it can. A Trojan can use various techniques to mask itself, including rootkits, encryption, and obfuscation, to hide from security scanners and evade detection.
Can a Trojan be Removed by Factory Reset?
Yes, a Trojan can be removed by factory resetting your device. This is because it will restore the device to its original state, eliminating any malicious software that may have been installed. Bear in mind that there are more sophisticated Trojans that leave backdoors and reinfect even after a factory reset.
Can Mavradoi Trojan Infect WiFi?
Yes, it is possible for a Trojan to infect WiFi networks. When a user connects to the infected network, the Trojan can spread to other connected devices and can access sensitive information on the network.
Can Trojans Be Deleted?
Yes, Trojans can be deleted. This is typically done by running a powerful anti-virus or anti-malware program that is designed to detect and remove malicious files. In some cases, manual deletion of the Trojan may also be necessary.
Can Trojans Steal Files?
Yes, Trojans can steal files if they are installed on a computer. This is done by allowing the malware author or user to gain access to the computer and then steal the files stored on it.
Which Anti-Malware Can Remove Trojans?
Anti-malware programs such as SpyHunter are capable of scanning for and removing Trojans from your computer. It is important to keep your anti-malware up to date and regularly scan your system for any malicious software.
Can Trojans Infect USB?
Yes, Trojans can infect USB devices. USB Trojans typically spread through malicious files downloaded from the internet or shared via email, allowing the hacker to gain access to a user's confidential data.
About the Mavradoi Research
The content we publish on SensorsTechForum.com, this Mavradoi how-to removal guide included, is the outcome of extensive research, hard work and our team’s devotion to help you remove the specific trojan problem.
How did we conduct the research on Mavradoi?
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 trojans (backdoor, downloader, infostealer, ransom, etc.)
Furthermore, the research behind the Mavradoi threat is backed with VirusTotal.
To better understand the threat posed by trojans, please refer to the following articles which provide knowledgeable details.