We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
Worm:Win32/Dorkbot!ac
Aliases: Trojan.Cryptlock.N!g6 (Symantec)
Summary
Microsoft Defender Antivirus detects and removes this threat.
This threat can steal your user names and passwords by watching what you do online. It can also download other malware and stop you from visiting security-related websites.
It can be installed on your PC through an infected USB flash drive, or when you click a malicious link sent through instant messaging programs and social networks.
See the Win32/Dorkbot family description for more information.
Use the following free Microsoft software to detect and remove this threat:
- Microsoft Defender Antivirus for Windows 8.1 and Windows 10, or Microsoft Security Essentials for Windows 7 and Windows Vista
- Microsoft Safety Scanner
- Microsoft Windows Malicious Software Removal Tool
You should also run a full scan. A full scan might find hidden malware.
Protect your sensitive information
This threat tries to steal your sensitive and confidential information. If you think your information has been stolen, see:
You should change your passwords after you've removed this threat:
Scan removable drives
Remember to scan any removable or portable drives. If you have Microsoft security software, see this topic on our software help page:
Disable Autorun
This threat tries to use the Windows Autorun function to spread through removable drives, like USB flash drives. You can disable Autorun to prevent worms from spreading:
Use cloud protection
Use cloud protection to help guard against the latest malware threats. It’s turned on by default for Microsoft Security Essentials and Windows Defender for Windows 10.
Go to All settings > Update & security > Windows Defender and make sure that your Cloud-based Protection settings is turned On.
Get more help
You can also see our advanced troubleshooting page for more help or search the Microsoft virus and malware community for more help.
If you’re using Windows XP, see our Windows XP end of support page.