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Exploit:JS/Fiexp.C
Aliases: JS/Crypted.EY! (Command) Mal/ExpJS-S (Sophos) Fiesta exploit kit (other)
Summary
Windows Defender detects and removes this threat.
This threat can infect your PC if it is running vulnerable software, including:
- Adobe Flash Player version 10 update 3 and earlier, and version 11 update 5 and earlier.
- Silverlight version 5 and earlier.
If your PC has vulnerable software this threat can download other malware, including Win32/Miuref.
You might get an alert about this threat even if you're not using a vulnerable software. This is because we detect when a website tries to use the vulnerability, even if it isn't successful.
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.
Update Java
Make sure you install all available Java updates.
You should remove older versions of Java, as keeping old and unsupported versions of Java on your PC is a serious security risk:
If you continue to get alerted about this threat, deleting your temporary Java files can help:
It's also important to keep your other software up to date:
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.
