MSIL/LockScreen.JH

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is MSIL/LockScreen.JH infection?

In this short article you will certainly find concerning the interpretation of MSIL/LockScreen.JH and its negative impact on your computer system. Such ransomware are a type of malware that is specified by on-line scams to demand paying the ransom by a sufferer.

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Most of the instances, MSIL/LockScreen.JH virus will instruct its targets to launch funds move for the objective of counteracting the changes that the Trojan infection has actually presented to the victim’s gadget.

MSIL/LockScreen.JH Summary

These adjustments 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.
  • 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 situated on the victim’s disk drive — so the victim can no more utilize the data;
  • Preventing normal access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

MSIL/LockScreen.JH

The most common channels whereby MSIL/LockScreen.JH Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a consequence of customer ending up on a resource that organizes a harmful software;

As quickly as the Trojan is successfully injected, it will either cipher the data on the victim’s PC or avoid the device from functioning in a proper manner – while likewise placing a ransom note that states the demand for the targets to impact the settlement for the objective of decrypting the files or recovering the documents system back to the initial problem. In many instances, the ransom note will show up when the customer reboots the COMPUTER after the system has actually already been harmed.

MSIL/LockScreen.JH circulation channels.

In numerous corners of the globe, MSIL/LockScreen.JH expands by leaps and also bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom quantity may differ relying on specific regional (regional) setups. The ransom money notes and also techniques of obtaining the ransom amount might vary depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In specific locations, the Trojans often wrongfully report having identified some unlicensed applications enabled on the sufferer’s device. The sharp then demands the customer to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software program piracy is much less popular, this method is not as effective for the cyber frauds. Conversely, the MSIL/LockScreen.JH popup alert might incorrectly declare to be originating from a police institution and also will certainly report having situated youngster pornography or various other prohibited data on the tool.

    MSIL/LockScreen.JH popup alert may falsely claim to be deriving from a law enforcement organization and also will report having situated kid porn or various other illegal information on the device. The alert will in a similar way include a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: E48B40EF
md5: a616b2ef6ca48980888c210012c6ecc3
name: A616B2EF6CA48980888C210012C6ECC3.mlw
sha1: 3c1f0d7d23410fc633cb3103a2f491e1779f5fa3
sha256: 87a203edfd6b36f5fa4caad5d807a304c78ee04d5936178ada822533bf72e4d0
sha512: e0d0488ad4e1f4a1b73daf25119e7cb9c4dd57c0ceb564a2d82a7c897104fb85d3458d54ae2b76e09e0fb86205b66d09edca4a233b8b9d54dec80dedad00994e
ssdeep: 3072:wlY22JNB6T2wSzQODlEh/BtGqOaWyIebEwR5crX0PnTf+v5eAMGjVPvG3PpBU:Q2JNB6p8Eh5txcyIeIwREq+v5erGjZQ
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2013
Assembly Version: 1.0.0.0
InternalName: mslock.exe
FileVersion: 1.0.0.0
ProductName: Survey Locker
ProductVersion: 1.0.0.0
FileDescription: Name3
OriginalFilename: mslock.exe

MSIL/LockScreen.JH also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 004dcb321 )
DrWeb Trojan.KillProc.30983
Cynet Malicious (score: 85)
ALYac Gen:Variant.Razy.294955
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.4329
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:MSIL/WLock.807186c7
K7GW Trojan ( 004dcb321 )
Cybereason malicious.f6ca48
ESET-NOD32 MSIL/LockScreen.JH
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.MSIL.WLock.bx
BitDefender Gen:Variant.Razy.294955
NANO-Antivirus Trojan.Win32.KillProc.cwkrcs
MicroWorld-eScan Gen:Variant.Razy.294955
Tencent Win32.Trojan.Kazy.Lkdi
Ad-Aware Gen:Variant.Razy.294955
Sophos Mal/Generic-S
Comodo Malware@#3rkrhz2jvguin
BitDefenderTheta Gen:NN.ZemsilF.34608.km0@aOT3voe
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.a616b2ef6ca48980
Emsisoft Gen:Variant.Razy.294955 (B)
SentinelOne Static AI – Malicious PE
Webroot W32.Suspicious.Heur
Avira HEUR/AGEN.1125041
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Backdoor:Win32/Bladabindi!ml
Arcabit Trojan.Razy.D4802B
AegisLab Trojan.Multi.Generic.4!c
GData Gen:Variant.Razy.294955
McAfee Artemis!A616B2EF6CA4
MAX malware (ai score=82)
Rising Ransom.WLock!8.467 (CLOUD)
Ikarus Trojan.ScreenLocker
Fortinet MSIL/LockScreen.JH!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HwMAp9sA

How to remove MSIL/LockScreen.JH 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 MSIL/LockScreen.JH 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.JH 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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