Published Dec 19, 2010 | Updated Sep 15, 2017


Severe |Detected with Windows Defender Antivirus

Aliases: (Kaspersky) W32/Malware.OXGO (Norman) Trojan.HomoBlocker!MLnTHJVdtJk (VirusBuster) Trojan horse LockScreen.Z (AVG) TR/Ransom.HomoBl.AU (Avira) MemScan:Rootkit.42832 (BitDefender) Trojan.Winlock.2723 (Dr.Web) Trojan-Ransom.Win32.HomoBlocker (Ikarus) Generic.dx!uuo (McAfee) Trojan.Win32.Generic.52483710 (Rising AV) TROJ_WINLOCK.ARG (Trend Micro)


TrojanDropper:Win32/Wlock.A is a trojan that prevents the affected user from using their computer, and displays a pornographic image. The affected user is then instructed to send an SMS to a specified number in order to unlock their computer and remove the image.
To detect and remove this threat and other malicious software that may be installed on your computer, run a full-system scan with an appropriate, up-to-date, security solution. The following Microsoft products will detect and remove this threat:
For more information on antivirus software, see
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