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Worm:Win32/Cosmu.C
Detected by Microsoft Defender Antivirus
Aliases: No associated aliases
Summary
Worm:Win32/Cosmu.C is a worm - a self-propagating program that can spread itself from one computer to another. Worms may spread themselves via a variety of different channels in order to compromise new computers. Commonly, worms may spread directly by copying themselves to removable or network drives, or by attempting to exploit particular vulnerabilities on targeted computers. Worms also often attempt to spread via platforms that require user interaction in order to run. They may send themselves as an attachment to an email or an instant message, or send a link to a copy of themselves in the body of a message. In these cases the message needs to be convincing enough to encourage the victim to click on the link or attachment and run or download a copy of the worm.
To detect and remove this threat and other malicious software that may have been installed in your computer, run a full-system scan with an up-to-date antivirus product such as the following:
Additional recovery instructions
This threat might make lasting changes that won't be restored by detecting and removing it. There is more information below about returning your PC to its pre-infected state.
Disable Autorun
Worm:Win32/Cosmu.C tries to use the Windows Autorun function to spread via removable drives, such as USB flash drives. This is a common malware behavior. You can find out how to turn off this feature in the article How to disable the Autorun functionality in Windows
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