Written by Robert Bailey

What is Win32/LockScreen.APR infection?

In this article you will find regarding the meaning of Win32/LockScreen.APR as well as its adverse influence on your computer. Such ransomware are a form of malware that is elaborated by on the internet scams to require paying the ransom money by a victim.

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In the majority of the instances, Win32/LockScreen.APR infection will certainly instruct its sufferers to initiate funds move for the function of neutralizing the amendments that the Trojan infection has introduced to the victim’s gadget.

Win32/LockScreen.APR Summary

These modifications can be as follows:

  • 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.
  • Creates RWX memory. There is a security trick with memory regions that allows an attacker to fill a buffer with a shellcode and then execute it. Filling a buffer with shellcode isn’t a big deal, it’s just data. The problem arises when the attacker is able to control the instruction pointer (EIP), usually by corrupting a function’s stack frame using a stack-based buffer overflow, and then changing the flow of execution by assigning this pointer to the address of the shellcode.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers found on the victim’s hard drive — so the target can no more make use of the information;
  • Preventing routine accessibility to the target’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 regular channels through which Win32/LockScreen.APR Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of customer ending up on a resource that organizes a destructive software application;

As quickly as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or avoid the gadget from operating in an appropriate manner – while also positioning a ransom note that mentions the requirement for the targets to impact the settlement for the function of decrypting the records or bring back the documents system back to the preliminary condition. In the majority of circumstances, the ransom money note will show up when the customer restarts the PC after the system has currently been harmed.

Win32/LockScreen.APR circulation channels.

In numerous edges of the world, Win32/LockScreen.APR expands by leaps and also bounds. Nevertheless, the ransom notes as well as methods of extorting the ransom money quantity may differ depending on certain local (regional) settings. The ransom money notes as well as techniques of obtaining the ransom money amount might differ depending on particular regional (local) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software.

    In certain areas, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the target’s device. The sharp after that requires the individual to pay the ransom.

    Faulty statements concerning illegal material.

    In nations where software program piracy is less popular, this technique is not as effective for the cyber fraudulences. Additionally, the Win32/LockScreen.APR popup alert might wrongly claim to be stemming from a law enforcement establishment and also will certainly report having situated youngster pornography or other prohibited information on the gadget.

    Win32/LockScreen.APR popup alert might wrongly declare to be obtaining from a law enforcement organization as well as will certainly report having situated kid porn or various other unlawful data on the gadget. The alert will likewise contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: DE20E013
md5: 2c839e6389a85b91159fe27627ca6a30
name: 2C839E6389A85B91159FE27627CA6A30.mlw
sha1: 428f740cdba99bffd9d9c5b832874e0a71e1d295
sha256: d8f9e9da89fef4996f2b401232ad298bcb0704eb2df6ef268737e3799101fb6a
sha512: 6a3c7ec337e648ffeb404fa08efbfa13d0200905202a4ae15af2b4299ed90538e7fd4b9deba32ae18998ea1b0303435bbfcd4abb991bd27c25275b170aba4db0
ssdeep: 1536:4Q2sIKLqVye3+cBJHsajBBFeo4VauIGuh/RrPz+HDL:4sIg5cBpsajbko4Va/ZRjz+HDL
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/LockScreen.APR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0040f3c81 )
DrWeb Trojan.Winlock.8128
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Urausy.C
ALYac Gen:Heur.VIZ.8
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/Urausy.fb3b66bb
K7GW Trojan ( 0040f3c81 )
Cybereason malicious.389a85
Cyren W32/FakeAlert.WR.gen!Eldorado
ESET-NOD32 Win32/LockScreen.APR
APEX Malicious
Avast Win32:Reveton-RX [Trj]
ClamAV Win.Ransomware.Generickdz-9652412-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.VIZ.8
NANO-Antivirus Trojan.Win32.RiskGen.cqoqaw
SUPERAntiSpyware Trojan.Agent/Gen-LockScreen
MicroWorld-eScan Gen:Heur.VIZ.8
Tencent Win32.Trojan.Lockscreen.Htmh
Ad-Aware Gen:Heur.VIZ.8
Comodo TrojWare.Win32.Kryptik.BAQC@4xm2qg
BitDefenderTheta Gen:NN.ZexaF.34628.gqW@aqbYuWgi
VIPRE Trojan.Win32.FakeAV.ka (v)
TrendMicro TROJ_FRS.0NA103BL20
McAfee-GW-Edition Ransom-FBXU!2C839E6389A8
Emsisoft Gen:Heur.VIZ.8 (B)
Jiangmin Trojan/Foreign.fkw
Webroot W32.Rogue.Gen
Avira TR/Urausy.9830315
eGambit Generic.Malware
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:Win32/Urausy.C
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Heur.VIZ.8
TACHYON Trojan/W32.Foreign.98304.UW
AhnLab-V3 Trojan/Win32.LockScreen.R66413
Acronis suspicious
McAfee Ransom-FBXU!2C839E6389A8
MAX malware (ai score=100)
VBA32 Hoax.Foreign
Malwarebytes Trojan.FakeAlert.RGenX
Panda Trj/Resdec.HEU
TrendMicro-HouseCall TROJ_FRS.0NA103BL20
Rising Trojan.Kryptik!1.66AB (CLOUD)
Yandex Trojan.Foreign!z3rllauE3Tc
Ikarus Trojan.Win32.FakeAV
Fortinet W32/SystemSecurity.AL!tr
AVG Win32:Reveton-RX [Trj]
Qihoo-360 Win32/Ransom.Urausy.HwgAEpsA

How to remove Win32/LockScreen.APR 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.APR 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.APR 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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