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Alert level: Severe Detected with Windows Defender Antivirus
Also detected as: Trojan.Winlock.2741 (Dr.Web) PWS-Spyeye.e (McAfee) Mal/Zbot-AV (Sophos) Cryp_Zbot-17 (Trend Micro)
Windows Defender Antivirus detects and removes this threat.
Ransom:Win32/LockScreen.AO is a ransomware that locks you out of your desktop. It asks you to pay a ransom fee so that you can regain use of your desktop.
Our ransomware FAQ page has more information on this type of threat.
Read our latest report: Ransomware 1H 2017 review: Global outbreaks reinforce the value of security hygiene.