Written by Robert Bailey

What is Win32/LockScreen.AML infection?

In this short article you will certainly discover regarding the interpretation of Win32/LockScreen.AML as well as its negative influence on your computer system. Such ransomware are a kind of malware that is elaborated by on-line frauds to demand paying the ransom by a target.

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Most of the situations, Win32/LockScreen.AML ransomware will instruct its sufferers to launch funds move for the purpose of reducing the effects of the modifications that the Trojan infection has presented to the target’s gadget.

Win32/LockScreen.AML Summary

These alterations can be as complies with:

  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Attempts to restart the guest VM;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Ciphering the records found on the sufferer’s hard drive — so the sufferer can no more utilize the information;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most common channels where Win32/LockScreen.AML Trojans are injected are:

  • By means of phishing emails;
  • As a consequence of individual ending up on a resource that organizes a malicious software program;

As soon as the Trojan is efficiently infused, it will either cipher the information on the target’s PC or prevent the gadget from working in a proper fashion – while likewise putting a ransom note that points out the demand for the victims to impact the settlement for the objective of decrypting the records or restoring the documents system back to the first problem. In a lot of instances, the ransom money note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been harmed.

Win32/LockScreen.AML distribution networks.

In numerous corners of the world, Win32/LockScreen.AML grows by leaps and also bounds. Nonetheless, the ransom money notes as well as tricks of extorting the ransom money amount may vary relying on particular local (local) setups. The ransom notes and methods of obtaining the ransom money amount might differ depending on certain neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software program.

    In certain locations, the Trojans commonly wrongfully report having actually discovered some unlicensed applications allowed on the target’s gadget. The alert then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In countries where software application piracy is much less popular, this technique is not as efficient for the cyber fraudulences. Conversely, the Win32/LockScreen.AML popup alert may falsely assert to be deriving from a police establishment and also will report having located youngster pornography or other illegal data on the gadget.

    Win32/LockScreen.AML popup alert may incorrectly claim to be obtaining from a law enforcement organization and will report having located child pornography or various other prohibited information on the tool. The alert will similarly include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 549F1B98
md5: 574427be6c47289e3043162b0b2bf7a0
name: 574427BE6C47289E3043162B0B2BF7A0.mlw
sha1: 84b78dfdb55505602fd941626c0e7926a862f736
sha256: 7fbe68dd73669580fa500ca6b69351a23c3297faab3a16bf8fb3f1627b148b43
sha512: c9c307b942f98bffaf7509c16a07d9f725f40136e85fac286516308f21d1da8b179b36d8ed55bbe650f6f9ada2bfad47533017e8ffccd53130ab4901d68f2d68
ssdeep: 12288:RkxDoouVA2nxKkh0vdRgQriDJOIZW+yBGQowlNCONyZfbNvp2:bRmJkqoQrilOIQ+yMxyNyVpg
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompiledScript: AutoIt v3 Script: 3, 3, 8, 0
FileVersion: 3, 3, 8, 0
Translation: 0x0809 0x04b0

Win32/LockScreen.AML also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0047e7591 )
DrWeb Trojan.DownLoader22.10881
Cynet Malicious (score: 100)
ALYac Trojan.Autoit.Agent.ET
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.8345
Sangfor Ransom.Win32.Blocker.iips
Alibaba Ransom:Win32/Blocker.fee77e96
K7GW Trojan ( 0047e7591 )
Cybereason malicious.e6c472
ESET-NOD32 a variant of Win32/LockScreen.AML
APEX Malicious
Avast AutoIt:LockScreen-A [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.iips
BitDefender Trojan.Autoit.Agent.ET
NANO-Antivirus Trojan.Win32.Ransom.edmvnz
MicroWorld-eScan Trojan.Autoit.Agent.ET
Tencent Win32.Trojan.Blocker.Suxo
Ad-Aware Trojan.Autoit.Agent.ET
Sophos ML/PE-A
Comodo Malware@#1sgdzr15igk15
VIPRE Trojan.Win32.Generic!BT
Emsisoft Trojan.Autoit.Agent.ET (B)
Avira HEUR/AGEN.1116002
Microsoft Trojan:Win32/Dynamer!ac
Arcabit Trojan.Autoit.Agent.ET
AegisLab Trojan.Win32.Blocker.j!c
GData Trojan.Autoit.Agent.ET (2x)
Acronis suspicious
McAfee Artemis!574427BE6C47
MAX malware (ai score=100)
VBA32 TrojanRansom.Blocker
Panda Trj/CI.A
Ikarus Trojan.Win32.LockScreen
MaxSecure Trojan.Autoit.AZA
Fortinet W32/LockScreen.AML!tr
AVG AutoIt:LockScreen-A [Trj]
Qihoo-360 Win32/Ransom.Blocker.HwoCgrkA

How to remove Win32/LockScreen.AML ransomware?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
Reasons why I would recommend GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for Win32/LockScreen.AML files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/LockScreen.AML you can always ask me in the comments for getting help.

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  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site:
  3. More information about GridinSoft products:

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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