Published Jan 26, 2011|Updated Jan 10, 2018


Severe |Detected with Windows Defender Antivirus

Aliases: Trojan-Ransom.Win32.PornoBlocker.bho (Kaspersky) W32/Ransom.KB (Norman) Trojan.PornoBlocker!CvjyYihPT7M (VirusBuster) TR/Ransom.PornoBlocker.bho (Avira) Win32/LockScreen.XU (ESET) Trojan-Ransom.Win32.PornoBlocker (Ikarus) TROJ_RANSOM.FP (Trend Micro)


Windows Defender Antivirus detects and removes this threat. 

The threat locks your screen and prevents you from using your desktop. It shows you a message saying that if you want to regain access to your desktop, you have to pay a fine in the form of an SMS sent to a premium number.

This type of threat is known as ransomware.

Our ransomware FAQ page has more information on this type of threat.

The trend towards increasingly sophisticated malware behavior, highlighted by the use of exploits and other attack vectors, makes older platforms so much more susceptible to ransomware attacks. From June to November 2017, Windows 7 devices were 3.4 times more likely to encounter ransomware compared to Windows 10 devices.

Read our latest report: A worthy upgrade: Next-gen security on Windows 10 proves resilient against ransomware outbreaks in 2017.


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