What is Ransom:Win32/LockScreen.CZ infection?

In this short article you will certainly locate concerning the interpretation of Ransom:Win32/LockScreen.CZ and its unfavorable effect on your computer. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom money by a victim.

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In the majority of the situations, Ransom:Win32/LockScreen.CZ virus will instruct its targets to initiate funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the victim’s gadget.

Ransom:Win32/LockScreen.CZ Summary

These adjustments can be as complies with:

  • 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.
  • Unconventionial language used in binary resources: Russian;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the victim’s hard drive — so the victim can no longer utilize the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


One of the most normal channels whereby Ransom:Win32/LockScreen.CZ Trojans are infused are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a resource that organizes a malicious software program;

As soon as the Trojan is effectively injected, it will either cipher the information on the target’s computer or prevent the device from working in a correct manner – while additionally putting a ransom money note that discusses the demand for the sufferers to effect the settlement for the function of decrypting the papers or restoring the data system back to the preliminary problem. In a lot of circumstances, the ransom note will certainly show up when the customer reboots the PC after the system has already been harmed.

Ransom:Win32/LockScreen.CZ circulation networks.

In numerous corners of the globe, Ransom:Win32/LockScreen.CZ expands by leaps and bounds. However, the ransom notes as well as tricks of extorting the ransom quantity might vary relying on certain local (regional) settings. The ransom money notes as well as techniques of extorting the ransom money amount might vary depending on specific local (local) setups.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In specific areas, the Trojans commonly wrongfully report having found some unlicensed applications allowed on the victim’s device. The sharp then demands the user to pay the ransom.

    Faulty statements concerning unlawful content.

    In countries where software application piracy is less prominent, this method is not as reliable for the cyber scams. Conversely, the Ransom:Win32/LockScreen.CZ popup alert might falsely claim to be originating from a police establishment and also will certainly report having situated child porn or other illegal data on the device.

    Ransom:Win32/LockScreen.CZ popup alert might incorrectly assert to be deriving from a regulation enforcement institution and also will certainly report having situated youngster porn or other unlawful information on the gadget. The alert will likewise have a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: EC75EC10
md5: 6cbdd5d07e54fe4ccd4a0a3de208f7b1
name: 6CBDD5D07E54FE4CCD4A0A3DE208F7B1.mlw
sha1: ebba660424510a22da8e1f026e11c646cd8cd7be
sha256: 900f1fd4f5b0489a491bdea5789b48ee05ab29f3a24a90d0534ffb93456a2443
sha512: 640775c1b462360e8d7d2ea2467de44033e383af5ad6dea47516087e1aed779cb57ab805eaf6edd1aed43586943b6ea47a3d3c5de43b1ccece1a36398bc7a78d
ssdeep: 6144:wEPXzhZ4nYzD0UHW6xSnUQyndG2PK7vFxNmcCcqub2MBgRFAW4qoTkp8l9:LPXzhZ4313nKPP0NxAdi2MCCdTku9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.CZ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Cynet Malicious (score: 85)
McAfee Artemis!6CBDD5D07E54
Cylance Unsafe
Zillya Trojan.Gimemo.Win32.9312
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (W)
Alibaba Trojan:Win32/LockScreen.a30ca9d5
Cybereason malicious.07e54f
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/LockScreen.BFA
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan.Win32.Agent.xadibr
BitDefender Gen:Variant.Zusy.324222
NANO-Antivirus Trojan.Win32.LockScreen.bofynj
MicroWorld-eScan Gen:Variant.Zusy.324222
Tencent Win32.Trojan.Generic.bper
Ad-Aware Gen:Variant.Zusy.324222
Comodo Malware@#ldueuqolzy2
BitDefenderTheta Gen:NN.ZelphiF.34608.BGW@aOG6dnnc
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_SPNR.35CD13
FireEye Gen:Variant.Zusy.324222
Emsisoft Gen:Variant.Zusy.324222 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1105451
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic.a.(kcloud)
Microsoft Ransom:Win32/LockScreen.CZ
Arcabit Trojan.Zusy.D4F27E
AegisLab Trojan.Win32.Gimemo.j!c
GData Gen:Variant.Zusy.324222
AhnLab-V3 Trojan/Win32.Ransom.R51659
VBA32 Trojan-Ransom.Winlock.gen
MAX malware (ai score=84)
Malwarebytes Malware.AI.3839929730
Panda Generic Malware
TrendMicro-HouseCall TROJ_SPNR.35CD13
Rising Ransom.LockScreen!8.83D (CLOUD)
Yandex Trojan.GenAsa!88wMDe/vdj4
Ikarus Trojan.Win32.LockScreen
Fortinet W32/LockScreen.ALF!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.e6d

How to remove Ransom:Win32/LockScreen.CZ 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 GridinSoft1

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 Ransom:Win32/LockScreen.CZ 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

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

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: https://gridinsoft.com/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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