Written by Robert Bailey

What is MSIL/LockScreen.IN infection?

In this article you will locate regarding the meaning of MSIL/LockScreen.IN and also its adverse influence on your computer system. Such ransomware are a kind of malware that is specified by online fraudulences to require paying the ransom by a sufferer.

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Most of the cases, MSIL/LockScreen.IN infection will certainly instruct its targets to start funds transfer for the purpose of neutralizing the amendments that the Trojan infection has presented to the sufferer’s device.

MSIL/LockScreen.IN Summary

These adjustments 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.
  • 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
  • Ciphering the files found on the target’s disk drive — so the sufferer can no more make use of the data;
  • Preventing routine access to the sufferer’s workstation;


The most normal channels through which MSIL/LockScreen.IN are injected are:

  • By ways of phishing emails;
  • As a consequence of customer ending up on a source that organizes a malicious software;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or prevent the gadget from operating in a proper way – while additionally positioning a ransom note that discusses the demand for the targets to impact the repayment for the function of decrypting the documents or bring back the file system back to the initial condition. In many circumstances, the ransom note will certainly show up when the customer reboots the PC after the system has actually already been damaged.

MSIL/LockScreen.IN circulation networks.

In various corners of the world, MSIL/LockScreen.IN expands by leaps and also bounds. Nevertheless, the ransom notes and methods of extorting the ransom money amount might vary depending on particular local (regional) setups. The ransom money notes as well as methods of extorting the ransom money amount may differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software.

    In certain areas, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the victim’s gadget. The alert then requires the customer to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In countries where software application piracy is much less preferred, this technique is not as effective for the cyber fraudulences. Alternatively, the MSIL/LockScreen.IN popup alert may incorrectly assert to be deriving from a police institution and also will report having located kid porn or various other illegal data on the tool.

    MSIL/LockScreen.IN popup alert might falsely claim to be acquiring from a regulation enforcement establishment and also will report having situated kid porn or other illegal information on the gadget. The alert will in a similar way have a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: F27893B3
md5: 2d48e92bf0138239c84647434c354750
name: 2D48E92BF0138239C84647434C354750.mlw
sha1: 8357850bdf8f446bb319754b8a3c69e1d4414f83
sha256: 1c4e9226c25bd29373d946462f1d103ebcec67cf64d1466e745ab3325b9d6426
sha512: e05604db97181685c9b682777ef4c2334671dde1c0e084be52b0ebf8ac7322ef0ccddfa82a21e6fe4b9b516244d72e522adbf75580ab551fbc8f1881b47a8f29
ssdeep: 3072:+y6jQn+Q7e25cm4+ojDZwquin0jx288AEQ3fsfzXWTofj7QeLHbBU:b+Q7eo+9ZPn0jxaQsG+7BU
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2013
Assembly Version:
InternalName: mslock.exe
ProductName: Survey Locker
FileDescription: Name3
OriginalFilename: mslock.exe

MSIL/LockScreen.IN also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004dcb321 )
DrWeb Trojan.KillProc.31929
Cynet Malicious (score: 100)
ALYac Gen:Variant.Razy.294955
Cylance Unsafe
Zillya Trojan.WLock.Win32.12
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:MSIL/LockScreen.5623082f
K7GW Trojan ( 004dcb321 )
Cybereason malicious.bf0138
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.294955
NANO-Antivirus Trojan.Win32.KillProc.driavo
MicroWorld-eScan Gen:Variant.Razy.294955
Tencent Win32.Trojan.Generic.Hsiy
Ad-Aware Gen:Variant.Razy.294955
Sophos Mal/Generic-S
Comodo Malware@#1rdvdldvt3qsy
BitDefenderTheta Gen:NN.ZemsilF.34628.km0@a4Tba0f
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
Emsisoft Gen:Variant.Razy.294955 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/MSIL.amjz
Webroot W32.Suspicious.Heur
Avira HEUR/AGEN.1125041
eGambit Unsafe.AI_Score_100%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:MSIL/LockScreen
Arcabit Trojan.Razy.D4802B
GData Gen:Variant.Razy.294955
McAfee Artemis!2D48E92BF013
MAX malware (ai score=100)
VBA32 Trojan.KillProc
Panda Trj/CI.A
Rising Ransom.LockScreen!8.83D (CLOUD)
Ikarus Trojan-Ransom.MSIL.WLock
Fortinet MSIL/LockScreen.JO!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.PornoBlocker.HwMAEpsA

How to remove MSIL/LockScreen.IN ransomware?

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 MSIL/LockScreen.IN 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove MSIL/LockScreen.IN you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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