What is MSIL/LockScreen.CK infection?

In this post you will certainly locate regarding the interpretation of MSIL/LockScreen.CK and its unfavorable effect on your computer. Such ransomware are a type 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, MSIL/LockScreen.CK virus will certainly instruct its targets to initiate funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has presented to the victim’s tool.

MSIL/LockScreen.CK 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.
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers situated on the target’s hard disk — so the sufferer can no longer utilize the data;
  • Preventing normal accessibility to the victim’s workstation;


One of the most typical networks whereby MSIL/LockScreen.CK Ransomware are infused are:

  • By methods of phishing emails;
  • As a consequence of customer ending up on a source that hosts a destructive software application;

As soon as the Trojan is effectively infused, it will either cipher the information on the target’s PC or prevent the device from functioning in a correct fashion – while also positioning a ransom note that mentions the need for the sufferers to effect the repayment for the function of decrypting the records or recovering the data system back to the initial condition. In most instances, the ransom note will turn up when the client restarts the PC after the system has actually already been harmed.

MSIL/LockScreen.CK distribution channels.

In different corners of the world, MSIL/LockScreen.CK grows by leaps as well as bounds. Nevertheless, the ransom money notes as well as techniques of obtaining the ransom money quantity might vary relying on specific local (local) setups. The ransom notes and also techniques of extorting the ransom quantity might vary depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software application.

    In specific areas, the Trojans often wrongfully report having actually detected some unlicensed applications enabled on the victim’s gadget. The sharp after that demands the individual to pay the ransom money.

    Faulty declarations concerning illegal content.

    In nations where software piracy is much less preferred, this approach is not as efficient for the cyber scams. Conversely, the MSIL/LockScreen.CK popup alert may wrongly assert to be originating from a law enforcement establishment as well as will report having located child porn or various other unlawful information on the tool.

    MSIL/LockScreen.CK popup alert might incorrectly claim to be deriving from a regulation enforcement organization as well as will certainly report having situated child pornography or various other prohibited information on the gadget. The alert will similarly include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 30D1B20C
md5: 7a99a77203519e45eb01ca978d798705
name: 7A99A77203519E45EB01CA978D798705.mlw
sha1: ffe803e1c4f89ff7245932a6f1343d5d875ad1e5
sha256: 5308bd21b31f7299819d49c244b57137b58e07a45b2cfc267868c662bf3896d5
sha512: c71ec3002e010bef1f5c4cba455b1f42e1e49b493123f941af18209ce7eb06fe78b3a5596b03c3036fc6d93a63f813fd7865adbdd4927cc8800a45e16ff8b4ae
ssdeep: 192:CjFiZIkhBi3fU8qyLouzEl6kGSH/8Gjr6Bwh1uwIZQznkD5PvTh9j3q6pk2W8I:CBixBi3cOPMOBkQwbkD53Th9jk2W8
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 Microsoft 2013
Assembly Version:
InternalName: dmx512controllerdriver.exe
CompanyName: Microsoft
ProductName: dmx512controllerdriver
FileDescription: dmx512controllerdriver
OriginalFilename: dmx512controllerdriver.exe

MSIL/LockScreen.CK also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb Trojan.Winlock.7734
Cynet Malicious (score: 99)
ALYac Gen:Variant.MSILPerseus.230105
Zillya Trojan.Gimemo.Win32.4727
Cybereason malicious.203519
Symantec Trojan.Gen
ESET-NOD32 a variant of MSIL/LockScreen.CK
APEX Malicious
Avast MSIL:LockScreen-AI [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.MSILPerseus.230105
NANO-Antivirus Trojan.Win32.Gimemo.dcisqk
SUPERAntiSpyware Trojan.Agent/Gen-LockScreen
MicroWorld-eScan Gen:Variant.MSILPerseus.230105
Tencent Win32.Trojan.Gimemo.buld
Ad-Aware Gen:Variant.MSILPerseus.230105
Comodo Malware@#3ijybgje6vzmn
BitDefenderTheta Gen:NN.ZemsilCO.34670.bm0@aKf3JUh
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
Emsisoft Gen:Variant.MSILPerseus.230105 (B)
Avira TR/LockScreen.CJ
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Ransom:MSIL/Genasom
AegisLab Trojan.Win32.Gimemo.j!c
GData Gen:Variant.MSILPerseus.230105
TACHYON Trojan/W32.DN-Gimemo.17920
AhnLab-V3 Trojan/Win32.Gimemo.R50936
McAfee Artemis!7A99A7720351
MAX malware (ai score=89)
VBA32 Trojan.MSIL.gen.16
Panda Generic Malware
Rising Ransom.Genasom!8.293 (CLOUD)
eGambit Unsafe.AI_Score_97%
Fortinet W32/Gimemo.AWFJ!tr
AVG MSIL:LockScreen-AI [Trj]
Qihoo-360 Win32/Trojan.IM.eee

How to remove MSIL/LockScreen.CK 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 MSIL/LockScreen.CK 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 MSIL/LockScreen.CK 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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