This threat is a member of the Win32/Sirefef family.
Microsoft security software detects and removes this threat.
This trojan can install other malware or unwanted software onto your PC.
Find out ways that malware can get on your PC.
What to do now
Use the following free Microsoft software to detect and remove this threat:
You should also run a full scan. A full scan might find other, hidden malware.
Get more help
You can also see 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.