What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/LockScreen.AIU infection?

In this short article you will certainly discover about the meaning of Win32/LockScreen.AIU and also its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by on-line scams to demand paying the ransom by a target.

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Most of the cases, Win32/LockScreen.AIU infection will certainly advise its targets to initiate funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the victim’s device.

Win32/LockScreen.AIU Summary

These modifications can be as adheres to:

  • Executable code extraction. Cybercriminals often use binary packers to hinder the malicious code from reverse-engineered by malware analysts. A packer is a tool that compresses, encrypts, and modifies a malicious file’s format. Sometimes packers can be used for legitimate ends, for example, to protect a program against cracking or copying.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the target’s hard disk — so the sufferer can no longer utilize the data;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains Ransom:Win32/LockScreen.3fdd0cf4 Ransom:Win32/LockScreen.3fdd0cf4


One of the most common channels whereby Win32/LockScreen.AIU Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of user winding up on a source that holds a destructive software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the target’s computer or stop the gadget from working in a correct way – while additionally placing a ransom money note that mentions the requirement for the targets to impact the payment for the function of decrypting the papers or bring back the file system back to the preliminary problem. In most instances, the ransom note will come up when the customer restarts the COMPUTER after the system has actually already been damaged.

Win32/LockScreen.AIU circulation channels.

In various edges of the globe, Win32/LockScreen.AIU grows by jumps and also bounds. Nevertheless, the ransom notes and also tricks of obtaining the ransom money amount may vary relying on specific neighborhood (local) setups. The ransom notes and tricks of extorting the ransom money quantity may vary depending on particular regional (regional) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software.

    In particular locations, the Trojans commonly wrongfully report having found some unlicensed applications allowed on the target’s gadget. The sharp then requires the user to pay the ransom.

    Faulty statements concerning prohibited material.

    In countries where software program piracy is less prominent, this method is not as effective for the cyber scams. Alternatively, the Win32/LockScreen.AIU popup alert might wrongly declare to be deriving from a police establishment as well as will report having situated kid porn or other unlawful information on the gadget.

    Win32/LockScreen.AIU popup alert might falsely declare to be obtaining from a law enforcement establishment and will certainly report having located youngster pornography or other prohibited data on the tool. The alert will similarly include a need for the user to pay the ransom.

Technical details

File Info:

crc32: A8F3CDC3
md5: c1b6b6255a450b077d9ffceeb163342e
name: C1B6B6255A450B077D9FFCEEB163342E.mlw
sha1: 6baa14e5daed1c8045be8b94222bb86bae0b38cb
sha256: a3757a9f964731c5fb541a4d58ba7bc13c60ac3ada2e6b1d1d557d5f6f9b51c5
sha512: 048610d7ba67f6e3ed8c6b9850ce88c4d29eb3b4acc38cf94e3b7373eb2a3b2bfa924bc757355a0b67548707f845461f2fe1f6d1b5879b85ffd6905565655f22
ssdeep: 6144:+uelueyk94X4z/VY/dADLuIbpb3A4HwziPwW6x/PLD59ehcw/:+uCuA4opY0VbpZQnf5Yp
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: banner
FileVersion: 1.00
CompanyName: Microsoft
ProductName: banner
ProductVersion: 1.00
OriginalFilename: banner.exe

Win32/LockScreen.AIU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00286cb31 )
DrWeb Trojan.Siggen6.60229
Cynet Malicious (score: 99)
ALYac Gen:Trojan.ShellStartup.pm0@auBT5rii
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.8492
Sangfor Trojan.PDF.ShellStartup.pm0
Alibaba Ransom:Win32/LockScreen.3fdd0cf4
K7GW Trojan ( 00286cb31 )
Cybereason malicious.55a450
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/LockScreen.AIU
APEX Malicious
Avast Win32:Malware-gen
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Gen:Trojan.ShellStartup.pm0@auBT5rii
NANO-Antivirus Trojan.Win32.TrjGen.ecjmqs
MicroWorld-eScan Gen:Trojan.ShellStartup.pm0@auBT5rii
Tencent Win32.Trojan.Lockscreen.Sxxu
Ad-Aware Gen:Trojan.ShellStartup.pm0@auBT5rii
Comodo Malware@#1vv6o4tju2gip
BitDefenderTheta AI:Packer.2FB5E2FD1F
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Trojan.dc
Emsisoft Gen:Trojan.ShellStartup.pm0@auBT5rii (B)
SentinelOne Static AI – Suspicious PE
eGambit Generic.Trojan
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Dynamer!ac
Arcabit Trojan.ShellStartup.E3D5CC
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Trojan.ShellStartup.pm0@auBT5rii
McAfee Artemis!C1B6B6255A45
MAX malware (ai score=100)
VBA32 Trojan.Dynamer
Malwarebytes MachineLearning/Anomalous.96%
Panda Trj/CI.A
Rising Trojan.LockScreen!8.1AF (CLOUD)
Yandex Trojan.GenAsa!i4DXLiZD1Ck
Ikarus Trojan.Win32.LockScreen
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/LockScreen.AIU!tr
AVG Win32:Malware-gen

How to remove Win32/LockScreen.AIU virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

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

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About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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