We're gradually updating threat actor names in our reports to align with the new weather-themed taxonomy. Learn about Microsoft threat actor names
Win32/Bobax
Detected by Microsoft Defender Antivirus
Aliases: W32.Bobax (Symantec) W32/Bobax (Sophos)
Summary
Windows Defender Antivirus detects and removes this threat.
Win32/Bobax is a family of mass-mailing network worms that target certain versions of Microsoft Windows.
The worm can spread by sending a copy of itself as an attachment to email addresses gathered from an infected computer. It can also spread by exploiting several Windows vulnerabilities. The worm can download and run malicious files from Web sites, and can also open a backdoor to give attackers access to use the infected computer.
Use the following free Microsoft software to detect and remove this threat:
- Microsoft Defender Antivirus for Windows 10 and Windows 8.1, or Microsoft Security Essentials for Windows 7 and Windows Vista
- Microsoft Safety Scanner
You should also run a full scan. A full scan might find hidden malware.
Get more help
You can also visit our advanced troubleshooting page 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.
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