What is Win32/LockScreen.AAF infection?

In this article you will certainly find regarding the definition of Win32/LockScreen.AAF as well as its negative influence on your computer. Such ransomware are a type of malware that is clarified by online frauds to require paying the ransom by a victim.

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Most of the cases, Win32/LockScreen.AAF ransomware will instruct its victims to launch funds move for the purpose of counteracting the changes that the Trojan infection has actually introduced to the target’s tool.

Win32/LockScreen.AAF Summary

These modifications can be as complies with:

  • A process created a hidden window;
  • Unconventionial language used in binary resources: Russian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Attempts to restart the guest VM;
  • 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
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files found on the target’s hard disk drive — so the target can no longer use the information;
  • Preventing regular accessibility to the victim’s workstation;


The most regular channels whereby Win32/LockScreen.AAF Ransomware are injected are:

  • By ways of phishing e-mails;
  • As a consequence of individual ending up on a source that organizes a malicious software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or stop the tool from functioning in an appropriate way – while additionally placing a ransom note that mentions the requirement for the sufferers to effect the payment for the function of decrypting the records or bring back the documents system back to the preliminary problem. In most instances, the ransom note will turn up when the client reboots the PC after the system has already been damaged.

Win32/LockScreen.AAF circulation channels.

In various edges of the world, Win32/LockScreen.AAF expands by leaps and also bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom money amount may differ depending upon particular neighborhood (regional) settings. The ransom notes and methods of obtaining the ransom money quantity might vary depending on particular regional (local) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having actually found some unlicensed applications made it possible for on the victim’s gadget. The sharp then demands the individual to pay the ransom.

    Faulty statements regarding illegal material.

    In countries where software piracy is much less prominent, this approach is not as reliable for the cyber scams. Alternatively, the Win32/LockScreen.AAF popup alert may wrongly assert to be originating from a police institution as well as will certainly report having located kid pornography or other prohibited data on the tool.

    Win32/LockScreen.AAF popup alert might incorrectly assert to be deriving from a regulation enforcement organization and will certainly report having located child pornography or various other prohibited data on the gadget. The alert will similarly include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 3B499A13
md5: 7f11ae3fc52e4e9071a9e91da6f05006
name: 7F11AE3FC52E4E9071A9E91DA6F05006.mlw
sha1: f4395f23e37ff27ef6c7e0bb26ad432588b71d85
sha256: c640fb95a882ebdb205636b723efa8c7a760601b8fb94ba7c48f09b2cb10fa8d
sha512: 968fb2e1c2d25ee525358e22025be2f80d871ab9c75ea6cd72f604ad1c41c2a02075675481b5667b5bfc57ded758d37b495406f4f758b7e460b10ed77fb4b4c4
ssdeep: 768:R9gsjKo1pTKUO3cO5FZllNQRjpVM2WlKWbjqy4tid2Wlj:R9ganTocUvNQfVM2BWiy4tiUWZ
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/LockScreen.AAF also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 001e55521 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.5890
Cynet Malicious (score: 100)
CAT-QuickHeal TrojanDropper.Wlock.AA6
ALYac Gen:Variant.Jaiko.5148
Cylance Unsafe
Zillya Trojan.HmBlocker.Win32.2142
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/HmBlocker.a8418a91
K7GW Trojan ( 001e55521 )
Cybereason malicious.fc52e4
Cyren W32/Ransom.E.gen!Eldorado
Symantec Trojan.Ransomlock
ESET-NOD32 a variant of Win32/LockScreen.AAF
APEX Malicious
TotalDefense Win32/RansomLockscreen.T
Avast Win32:Dh-A [Heur]
ClamAV Win.Trojan.Hmblocker-62
Kaspersky Trojan-Ransom.Win32.HmBlocker.un
BitDefender Gen:Variant.Jaiko.5148
NANO-Antivirus Trojan.Win32.HmBlocker.ctbuk
ViRobot Trojan.Win32.A.HmBlocker.48640.A[UPX]
MicroWorld-eScan Gen:Variant.Jaiko.5148
Tencent Win32.Trojan.Hmblocker.Airx
Ad-Aware Gen:Variant.Jaiko.5148
Sophos ML/PE-A
Comodo Malware@#y6urdme1usyp
BitDefenderTheta AI:Packer.A9ADD70A1F
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Dropper.pc
Emsisoft Gen:Variant.Jaiko.5148 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/HmBlocker.cs
Webroot W32.Dropper.Wlock.A
Avira TR/Winlock.I.5
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Occamy.C
Arcabit Trojan.Jaiko.D141C
AegisLab Trojan.Win32.Zbot.lzoW
GData Gen:Variant.Jaiko.5148
AhnLab-V3 Trojan/Win32.HmBlocker.C78701
McAfee Artemis!7F11AE3FC52E
MAX malware (ai score=100)
VBA32 BScope.Trojan.Winlock
Malwarebytes Malware.Heuristic.1003
Panda Generic Malware
Rising Ransom.HmBlocker!8.2A63 (CLOUD)
Yandex Trojan.GenAsa!AZtTaYFYKmA
Ikarus Trojan.Winlock
MaxSecure Trojan.Malware.1628574.susgen
Fortinet W32/LockScreen.AAFA!tr
AVG Win32:Dh-A [Heur]
Qihoo-360 Win32/Ransom.Ransomlock.HwsBXicA

How to remove Win32/LockScreen.AAF 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.

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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.AAF 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.AAF you can always ask me in the comments for getting help.

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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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