Win32/LockScreen.BH

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

What is Win32/LockScreen.BH infection?

In this article you will certainly find regarding the meaning of Win32/LockScreen.BH as well as its unfavorable influence on your computer. Such ransomware are a kind of malware that is clarified by on-line frauds to require paying the ransom by a target.

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Most of the situations, Win32/LockScreen.BH infection will advise its victims to launch funds transfer for the purpose of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Win32/LockScreen.BH 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.
  • Expresses interest in specific running processes;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Uses Windows utilities for basic functionality;
  • Attempts to stop active services;
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the sufferer’s hard disk — so the target can no longer use the information;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Win32/LockScreen.BH

One of the most normal networks where Win32/LockScreen.BH Trojans are infused are:

  • By means of phishing emails;
  • As a consequence of user ending up on a source that holds a destructive software;

As soon as the Trojan is effectively injected, it will certainly either cipher the data on the sufferer’s computer or stop the device from functioning in a proper fashion – while additionally putting a ransom note that states the demand for the targets to impact the repayment for the function of decrypting the papers or bring back the data system back to the first problem. In the majority of circumstances, the ransom note will show up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/LockScreen.BH circulation networks.

In various edges of the globe, Win32/LockScreen.BH expands by leaps and bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom amount may vary relying on particular regional (local) setups. The ransom money notes and also tricks of obtaining the ransom amount might vary depending on particular neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the victim’s tool. The sharp then requires the individual to pay the ransom.

    Faulty declarations about illegal web content.

    In nations where software piracy is less preferred, this method is not as reliable for the cyber scams. Conversely, the Win32/LockScreen.BH popup alert may incorrectly claim to be originating from a law enforcement institution and will certainly report having situated child pornography or other prohibited information on the device.

    Win32/LockScreen.BH popup alert may wrongly declare to be deriving from a regulation enforcement organization and also will certainly report having situated kid porn or various other prohibited data on the gadget. The alert will similarly include a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: A6A760B9
md5: 611063a1a823f2d3fd64ecdc942cda92
name: 611063A1A823F2D3FD64ECDC942CDA92.mlw
sha1: d9965ff450b1dfcd9912705110a69299ded999a5
sha256: 7e7cd847bb9562920a51c0cb1c7d959a334a3a9111ff6778635461b63ac1d750
sha512: 48d040dafb2d1bd96429b0daed25d7a89c009b739d405d78dda9a0d083719b7b5f4bd85d8bd9a9b6d8fb51be863b10e453303737f4a3f02eac9659ac453ac8bf
ssdeep: 192:dK/j3pt0zVB4ygBVT++3PaEsKWE69+zy4bBox8TdXGBD:dK/DpW5yf3aEsw69+zy4bBox8ThGBD
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright:
InternalName:
FileVersion:
CompanyName:
ProductName:
OleSelfRegister:
ProductVersion:
FileDescription:
OriginalFilename:
Translation: 0x0409 0x04b0

Win32/LockScreen.BH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e4091 )
DrWeb Trojan.KillProc.41324
Cynet Malicious (score: 100)
ALYac Gen:Trojan.Heur.GZ.bm0@bm4W6Mni
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.7667
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_60% (D)
Alibaba Ransom:Win32/PornoAsset.7b35ed09
K7GW Trojan ( 0055e4091 )
Cybereason malicious.1a823f
Cyren W32/VB-Wird-based!Maximus
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/LockScreen.BH
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.PornoAsset.crat
BitDefender Gen:Trojan.Heur.GZ.bm0@bm4W6Mni
NANO-Antivirus Trojan.Win32.KillProc.edkgug
MicroWorld-eScan Gen:Trojan.Heur.GZ.bm0@bm4W6Mni
Tencent Win32.Trojan.Pornoasset.Wklk
Ad-Aware Gen:Trojan.Heur.GZ.bm0@bm4W6Mni
Sophos ML/PE-A + Mal/VB-Gen
Comodo TrojWare.Win32.Kreeper.~VKD@1r2ve1
BitDefenderTheta AI:Packer.6747896A1F
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_RANSVB.SMA
McAfee-GW-Edition BehavesLike.Win32.VBObfus.mz
FireEye Generic.mg.611063a1a823f2d3
Emsisoft Gen:Trojan.Heur.GZ.bm0@bm4W6Mni (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.PornoAsset.am
Avira HEUR/AGEN.1125779
eGambit Generic.Malware
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/MultiInjector.A!rfn
Arcabit Trojan.Heur.GZ.ED3068
AegisLab Worm.Win32.VBNA.lnk6
GData Gen:Trojan.Heur.GZ.bm0@bm4W6Mni
McAfee GenericRXAA-AA!611063A1A823
MAX malware (ai score=98)
VBA32 SScope.Trojan.Validium.va
Panda Trj/CI.A
TrendMicro-HouseCall TROJ_RANSVB.SMA
Rising Trojan.SMSer!8.4E9 (TFE:5:aJo0cbyl0zV)
Yandex Trojan.GenAsa!Radxt3xF5Ks
Ikarus Trojan-Ransom.Fullscreen
Fortinet W32/Generic.AC.2163833
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.PornoAsset.HgIASOQA

How to remove Win32/LockScreen.BH 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 Win32/LockScreen.BH 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 Win32/LockScreen.BH 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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