W32.Mariofev.A is a must-removed threat. To process the clean up of this virus, follow the instructions on this page. Also, download the recommended tool to scan your computer.
W32.Mariofev.A is a computer worm that propagates by creating a copy of its codes on unsecured network shared drives and removable media drives of target computer. This worm has backdoor functionalities that allow a remote attacker to perform malicious tasks on infected computer. W32.Mariofev.A also deletes registry keys and entries that are associated to anti-virus and other security software.
Alias: Win32/Pruserinf.G, Trojan-Dropper.Win32.Agent.can, Trojan.Win32.Agent. qrb, Backdoor.Win32.Agent.ojs, W32/Mariofev.worm, W32/MarioF-B, Trojan.Crypt.XDR.Gen, TROJ_AGENT.AEGT, Worm:Win32/Mariofev.A
Damage Level: Medium
Systems Affected: Windows 9x, 2000, XP, Windows Vista
Once the worm is executed, it immediately drops a number of files and modifies other system files on target PC. It creates various registries but also delete some. To reduce security settings, W32.Mariofev.A deletes entries containing strings that are relevant to anti-virus applications.
To load itself on every Windows starts, this worm will create service with the following characteristics:
Service name: SCNa
Display name: SCNa Service
Startup Type: Automatic
W32.Mariofev.A may arrive on a computer as an executable file of DLL component dropped by another virus infection. Locally, it may spread by making a copy of itself on unsecured network shares and removable USB devices. Two files are copied onto removable drives including a dropper and an autorun. Accessing the infected drive may result to a routine that spreads the worm to other clean drives.
To spread over a network, W32.Mariofev.A brute forces the entry by using a combination of user name and password and attempts to gain an administrative privilege to perform its task.
How to Remove W32.Mariofev.A
Step 1 : Run a scan with your antivirus program
1. Temporarily Disable System Restore if your system is running on Windows Me/XP. [how to]
2. Start Windows in Safe Mode with Networking.
- From a power-off state, turn on the computer and press F8 on your keyboard repeatedly.
- Your computer will display Windows Advanced Boot Options menu. Select Safe Mode with Networking.
- Windows will boot loading only necessary drivers and system files. Expect that it will run with minimal features and low-resolution display.
3. Open your antivirus program and download the most recent update. This method ensures that your antivirus program can detect even newer variants of W32.Mariofev.A.
Updating your antivirus software is a one-click process. Please refer to your software manual for complete instructions.
4. Once updating is finished, run a full system scan. After the scan, delete all infected items. If unable to clean or delete, better place the threat in quarantine.
Step 2: Run another test with online virus scanner
Another way to remove W32.Mariofev.A without the need to install additional antivirus software is to perform a thorough scan with free online virus scanner. It can be found on websites of legitimate antivirus and security provider.
1. Click the button below to proceed to the list of suggested Online Virus Scanner. Choose your desired provider. You can run each scan individually, one at a time, to ensure that all threats will be removed from the computer. This may require plug-ins, add-on or Activex object, please install if you want to proceed with scan.
2. After completing the necessary download, your system is now ready to scan and remove W32.Mariofev.A and other kinds of threats.
3. Select an option in which you can thoroughly scan the computer to make sure that it will find and delete entirely all infections not detected on previous scan.
4. Remove or delete all detected items.
5. When scanning is finished, you may now restart the computer in normal mode.
Alternative Removal Procedures for W32.Mariofev.A
Option 1 : Use Windows System Restore to return Windows to previous state
If W32.Mariofev.A enters the computer, there is a big chance that Windows files, registry entries and other essential components are also infected. System Restore can reinstate clean system files by restoring the configuration to an earlier date. The method also replaces compromised files with a clean version. If you have a saved restore point before W32.Mariofev.A infiltrates the PC, we highly encourage you to execute this procedure if none of the above works.
To verify if System Restore is active on your computer, you can type system restore into the Start menu search box. Typing rstrui on the same box and pressing Enter also opens this function.
If previous restore point is saved, you may proceed with Windows System Restore. Click here to see the full procedure.
Option 2 : W32.Mariofev.A manual uninstall guide
IMPORTANT! Manual removal of W32.Mariofev.A requires technical skills. Deleting system files and registry entries by mistake may result to total disability of Windows system. We advise you to perform a backup of registry before proceeding with this guide.
1. Kill any running process that belongs to W32.Mariofev.A.
- Press Ctrl+Alt+Del on your keyboard.
- When Windows Task Manager appears, look for W32.Mariofev.A files (refer to Technical Reference) and click End Process.
2. Delete all registry entries that belong to this malware.
- Press [Windows Key]+R on your keyboard.
- In the 'Open' dialog box, type regedit and press Enter. This will open registry editor.
- Find and delete registry entries as mentioned in Technical Reference section below.
- Close registry editor. Changes made will be save automatically.
3. Scan the computer with antivirus program.
- Connect to Internet and open your antivirus software. Please update to obtain the latest database and necessary files.
- Restart the computer in Safe Mode.
- Just before Windows logo begins to load press F8 on your keyboard.
- On Windows Advanced Boot Options, select Safe Mode and press Enter.
4. Delete all files dropped by W32.Mariofev.A.
- While still in Safe Mode, search and delete malicious files. Please refer to 'Technical Reference'. Make sure that you execute 'End Task' first before deleting the file. Otherwise, the system will not let you perform this action.
Technical ReferenceAssociated Files and Folders:Added Registry Entries:
Ways to Prevent W32.Mariofev.A Infection
Take the following steps to protect the computer from threats. Suggested tools and security setup within installed software helps prevent the same attack on your PC.