Short bio

Trojan.GuLoader is Malwarebytes’ detection name for a family of Trojans that download and install additional malware.

Type and source of infection

Trojan.GuLoader is a Trojan downloader.  GuLoader is a downloader used by threat actors to distribute malware on a large scale.
Downloaders are often the first stage of infection from attacks from an exploit kit or a malicious email attachment. They are usually small and pre-programmed to download and start other malicious files.


Malwarebytes protects users and endpoints from Trojan.GuLoader by using real-time protection.

block Trojan.GuLoader

Malwarebytes blocks Trojan.GuLoader

Home remediation

Malwarebytes can detect and remove Trojan.Downloader without further user interaction.

  1. Please download Malwarebytes to your desktop.
  2. Double-click MBSetup.exe and follow the prompts to install the program.
  3. When your Malwarebytes for Windows installation completes, the program opens to the Welcome to Malwarebytes screen.
  4. Click on the Get started button.
  5. Click Scan to start a Threat Scan.
  6. Click Quarantine to remove the found threats.
  7. Reboot the system if prompted to complete the removal process.

Business remediation

How to remove Generic.Malware/Suspicious with the Malwarebytes Nebula console

You can use the Malwarebytes Anti-MalwareNebula console to scan endpoints.

endpoint menu

Nebula endpoint tasks menu

Choose the Scan + Quarantine option. Afterwards you can check the Detections tab to see which threats were found.


Nebula detections tab

On the Quarantine tab you can see which threats were quarantined and restore them if necessary.


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