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Alert level: Severe Detected with Windows Defender Antivirus
Also detected as: Blackhole (other) Blacole (other) Black hole (other) Blachole (other)
Windows Defender detects and removes this threat.
You should also update your software to be fully protected.
It belongs to the Blacole family of malware, which together are known as the Blacole (or "Blackhole") exploit kit.
When you visit a malicious or compromised website, BlacoleRef scans your PC for vulnerabilities or weaknesses in your software.
You might visit the website from a link or attachment in an email, or from a previously safe website that has been hacked.
The threat uses those vulnerabilities it has found on your PC to download malware onto your PC:
Typically, the Blacole exploit kit attempts to exploit vulnerabilities in applications such as Oracle Java, Sun Java, Adobe Acrobat and Adobe Reader.