How to Remove Cutwail Spambot

by Todd Bowerman
Harald Richter/iStock/Getty Images

The Cutwail virus is a nasty bit of malware that automatically downloads files to your PC and runs them without your consent. It’s also capable of compromising your sensitive information; the virus can steal usernames and passwords and send spam emails. Cutwail cannot be removed with a simple uninstall due to its complex nature. Windows Defender, included with Windows 8, is capable of removing and neutralizing the Cutwail threat.

Step 1

Press the "Windows" key on your keyboard to open the Start menu. Type “Windows Defender” and then click the application when it appears in your search results.

Step 2

Select “Full” under the “Scan Options” item. A full scan performs a deeper sweep and will pick up all pieces of the Cutwail infection.

Step 3

Click “Scan Now” to begin your scan. A full scan can take several minutes or hours, depending on your computer’s speed, storage space, document count and number of installed applications.

Close Windows Defender when the scan completes. Windows Defender automatically removes threats as they are detected, including the Cutwail infection.


  • Information in this article applies to Windows 8/8.1. It may vary slightly or significantly with other versions or products.


  • You can see what infections Defender detected and what was done to deal with them by clicking the “History” tab in the application, selecting “All Detected Items,” and clicking “View Details.”
  • Prevention is key when it comes to malware. Keep your computer protected with an up-to-date anti-virus solution and perform regular scans to spot possible infections.
  • Never download and install files from websites you do not trust. These files may seem benign, but can contain malicious software such as the Cutwail virus.


Photo Credits

  • Harald Richter/iStock/Getty Images

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