Win32/LockScreen [Threat Name] go to Threat

Win32/LockScreen.AKS [Threat Variant Name]

Category trojan
Size 74752 B
Detection created Apr 03, 2012
Detection database version 7023
Aliases Trojan-Ransom.Win32.Gimemo.ouu (Kaspersky)
  Ransom!fj.trojan (McAfee)
  Trojan:Win32/VB.AJC (Microsoft)
  Trojan.Malcol (Symantec)
Short description

Win32/LockScreen.AKS is a trojan that blocks access to the Windows operating system.

Installation

The trojan does not create any copies of itself.


In order to be executed on every system start, the trojan sets the following Registry entries:

  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows\­CurrentVersion\­Run]
    • "S%variable%" = "%malwarefilepath%"
  • [HKEY_CURRENT_USER\­Software\­Microsoft\­Windows NT\­CurrentVersion\­Winlogon]
    • "shell" = "%malwarefilepath%"

A string with variable content is used instead of %variable% .


Other information

Win32/LockScreen.AKS is a trojan that blocks access to the Windows operating system.


The trojan displays the following dialog box:

To regain access to the operating system the user is asked to send a certain amount of money to a specific bank account.


The trojan disables the following key combinations: ALT + TAB .


The trojan may terminate specific running processes.

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