Ransom:Win32/LockScreen.LK!MTB

What is Ransom:Win32/LockScreen.LK!MTB infection?

In this post you will certainly discover about the definition of Ransom:Win32/LockScreen.LK!MTB as well as its unfavorable effect on your computer. Such ransomware are a form of malware that is elaborated by online frauds to require paying the ransom by a sufferer.

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Most of the cases, Ransom:Win32/LockScreen.LK!MTB ransomware will instruct its targets to launch funds move for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s device.

Ransom:Win32/LockScreen.LK!MTB Summary

These modifications can be as adheres to:

  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Korean;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the sufferer’s hard disk — so the victim can no longer use the data;
  • Preventing regular accessibility to the victim’s workstation;

Ransom:Win32/LockScreen.LK!MTB

The most common channels where Ransom:Win32/LockScreen.LK!MTB Ransomware are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a source that organizes a harmful software;

As quickly as the Trojan is successfully injected, it will certainly either cipher the data on the target’s computer or stop the device from operating in a proper way – while likewise putting a ransom note that points out the requirement for the victims to effect the payment for the objective of decrypting the papers or bring back the data system back to the initial condition. In many circumstances, the ransom note will come up when the client reboots the COMPUTER after the system has already been damaged.

Ransom:Win32/LockScreen.LK!MTB circulation channels.

In numerous corners of the world, Ransom:Win32/LockScreen.LK!MTB expands by leaps as well as bounds. Nevertheless, the ransom notes as well as techniques of obtaining the ransom quantity might vary depending upon specific regional (local) setups. The ransom money notes and techniques of extorting the ransom quantity may differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software program.

    In particular areas, the Trojans often wrongfully report having detected some unlicensed applications allowed on the target’s tool. The sharp after that requires the user to pay the ransom.

    Faulty declarations about prohibited web content.

    In countries where software piracy is less prominent, this technique is not as efficient for the cyber scams. Conversely, the Ransom:Win32/LockScreen.LK!MTB popup alert may wrongly assert to be originating from a law enforcement establishment as well as will report having situated kid pornography or other unlawful data on the tool.

    Ransom:Win32/LockScreen.LK!MTB popup alert might incorrectly assert to be obtaining from a regulation enforcement institution and also will report having located youngster porn or other illegal information on the tool. The alert will likewise contain a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 892D2C68
md5: 9c9c1b873b9fc0e2c96991f4242a98b1
name: 9C9C1B873B9FC0E2C96991F4242A98B1.mlw
sha1: 04139ec60bd60239c65d1b41c1b02b4967111981
sha256: 7c55d749375560e440889507ca6f6122667275cde025935a0c18892fa60b88df
sha512: 97b1f209500a0132e264d4fc24cbc9edddf3cc432a738a29ec7320380cac214fbcb6becaaae68449220d5df8997a94fc5bb0e7dcd44860d01e71eefafb838c5a
ssdeep: 24576:j6cJjFPl8sjW3u5YRlpJww2eXCA3YA8v1mjGVTeAJjslgN:VVEsjd5YlAwt3mVqAZS
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2021
InternalName: seckey-x64-sha256.exe
FileVersion: 1.0.0.1
CompanyName: MS-Compatibility
ProductName: seckey-x64-sha2561.exe
ProductVersion: 1.0.0.1
OriginalFilename: seckey-x64-sha256.exe
Translation: 0x0412 0x04b0

Ransom:Win32/LockScreen.LK!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
Cynet Malicious (score: 99)
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
Kaspersky HEUR:Trojan.Win32.Khalesi.gen
BitDefenderTheta Gen:NN.ZexaE.34670.tv0@aanPp7lG
FireEye Generic.mg.9c9c1b873b9fc0e2
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1117667
eGambit Unsafe.AI_Score_100%
Microsoft Ransom:Win32/LockScreen.LK!MTB
GData Win32.Trojan.Agent.VLOFYI
AhnLab-V3 Trojan/Win.Ransomlock.C4405089
McAfee Artemis!9C9C1B873B9F
VBA32 BScope.Trojan.Khalesi
Malwarebytes MachineLearning/Anomalous.95%
Panda Trj/CI.A
Ikarus Trojan.Win32.LockScreen
Fortinet W32/LockScreen.BPL!tr
AVG Win32:MalwareX-gen [Trj]
Qihoo-360 Win32/Ransom.PornoBlocker.HgIASSQA

How to remove Ransom:Win32/LockScreen.LK!MTB virus?

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.LK!MTB 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.LK!MTB you can always ask me in the comments for getting help.

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References

  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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