Ransom:Win32/LockScreen.BW

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

What is Ransom:Win32/LockScreen.BW infection?

In this short article you will locate about the definition of Ransom:Win32/LockScreen.BW as well as its negative effect on your computer. Such ransomware are a type of malware that is specified by on-line scams to require paying the ransom money by a sufferer.

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Most of the cases, Ransom:Win32/LockScreen.BW ransomware will certainly instruct its targets to launch funds transfer for the objective of reducing the effects of the changes that the Trojan infection has actually introduced to the victim’s tool.

Ransom:Win32/LockScreen.BW Summary

These adjustments 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.
  • Unconventionial language used in binary resources: Russian;
  • 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
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • 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 victim’s disk drive — so the target can no longer utilize the data;
  • Preventing routine 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.
Similar behavior
Related domains
z.whorecord.xyzTrojan-Ransom.Win32.Blocker.jgjj
a.tomx.xyzTrojan-Ransom.Win32.Blocker.jgjj

Ransom:Win32/LockScreen.BW

The most common networks whereby Ransom:Win32/LockScreen.BW Ransomware Trojans are infused are:

  • By methods of phishing emails;
  • As an effect of user winding up on a source that holds a destructive software program;

As soon as the Trojan is successfully infused, it will certainly either cipher the data on the victim’s computer or protect against the device from operating in an appropriate way – while additionally positioning a ransom note that discusses the demand for the targets to effect the settlement for the purpose of decrypting the files or restoring the data system back to the preliminary condition. In many circumstances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has currently been harmed.

Ransom:Win32/LockScreen.BW circulation channels.

In different edges of the world, Ransom:Win32/LockScreen.BW expands by jumps and bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom money quantity may differ depending upon certain neighborhood (regional) settings. The ransom money notes and also methods of extorting the ransom money quantity may differ depending on certain local (regional) settings.

Ransomware injection

For example:

    Faulty alerts about unlicensed software program.

    In particular areas, the Trojans commonly wrongfully report having detected some unlicensed applications allowed on the target’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty statements about unlawful content.

    In countries where software piracy is less popular, this method is not as reliable for the cyber scams. Conversely, the Ransom:Win32/LockScreen.BW popup alert may wrongly assert to be originating from a police organization and will certainly report having located youngster pornography or other prohibited data on the gadget.

    Ransom:Win32/LockScreen.BW popup alert may incorrectly assert to be obtaining from a legislation enforcement institution and will certainly report having located youngster pornography or various other prohibited information on the gadget. The alert will similarly include a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 7B3BF07F
md5: f450ba07c14dec5684ab707d9cceabff
name: F450BA07C14DEC5684AB707D9CCEABFF.mlw
sha1: 58215fb5b3962d6e6ecd4c8810c7d3dabc8763b9
sha256: 00db9a16aa44cd9d6b59d35a18ee4cf60d9479d5ea9bf3a41fac1d56d91f47a0
sha512: 5dfd87f26dcb7bf7014b9c84ac5096b0ca2394a3822b9172d8cb5af9718fee71c82c62bb988163f72c85cc80b4a3c472e58199019f042834b55c0186eee0a90f
ssdeep: 12288:oglwAooZiBZ6Batrp7S5RcllhN3Q9FAi5KnAEDA:ztookgBa1pgRwxAoAW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.BW also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Trojan.ShellStartup.MGW@aakhADpc
FireEyeGeneric.mg.f450ba07c14dec56
CAT-QuickHealTrojan.Agent.9921
ALYacGen:Trojan.ShellStartup.MGW@aakhADpc
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.ShellStartup.MGW@aakhADpc
K7AntiVirusTrojan ( 7000000f1 )
BitDefenderGen:Trojan.ShellStartup.MGW@aakhADpc
K7GWTrojan ( 7000000f1 )
Cybereasonmalicious.7c14de
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Trojan-gen
KasperskyTrojan-Ransom.Win32.Blocker.jgjj
AlibabaRansom:Win32/LockScreen.a0679fb4
NANO-AntivirusTrojan.Win32.Agent.ctebvj
RisingRansom.LockScreen!8.83D (CLOUD)
Ad-AwareGen:Trojan.ShellStartup.MGW@aakhADpc
EmsisoftGen:Trojan.ShellStartup.MGW@aakhADpc (B)
ComodoMalware@#n0fv3n2ctr2t
F-SecureHeuristic.HEUR/AGEN.1105526
DrWebTrojan.KillProc.25280
ZillyaTrojan.Agent.Win32.407168
TrendMicroRansom_LockScreen.R03FC0DJA20
McAfee-GW-EditionGenericR-AZE!F450BA07C14D
MaxSecureTrojan.Malware.74161120.susgen
SophosMal/Generic-S
IkarusTrojan-Dropper.Win32.Dinwod
JiangminTrojan/Agent.igtc
AviraHEUR/AGEN.1105526
MAXmalware (ai score=86)
Antiy-AVLTrojan/Win32.Agent
MicrosoftRansom:Win32/LockScreen.BW
ArcabitTrojan.ShellStartup.EE2C5F
SUPERAntiSpywareTrojan.Agent/Gen-LockScreen
ZoneAlarmTrojan-Ransom.Win32.Blocker.jgjj
GDataGen:Trojan.ShellStartup.MGW@aakhADpc
CynetMalicious (score: 85)
McAfeeGenericR-AZE!F450BA07C14D
VBA32Trojan-Ransom.Winlock.gen
MalwarebytesGeneric.Malware/Suspicious
PandaGeneric Malware
ESET-NOD32Win32/LockScreen.AXF
TrendMicro-HouseCallRansom_LockScreen.R03FC0DJA20
TencentWin32.Trojan.Blocker.Ebpw
YandexTrojan.GenAsa!yjZ2ZThkx6w
FortinetW32/Agent.XTMB!tr
BitDefenderThetaAI:Packer.6D576F7F20
AVGWin32:Trojan-gen
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_90% (W)
Qihoo-360Win32/Ransom.Blocker.HwUBgHsA

How to remove Ransom:Win32/LockScreen.BW 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.BW 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 Ransom:Win32/LockScreen.BW 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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