Ransom:Win32/LockScreen.BD

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

What is Ransom:Win32/LockScreen.BD infection?

In this short article you will locate regarding the meaning of Ransom:Win32/LockScreen.BD and its adverse effect on your computer system. Such ransomware are a type of malware that is clarified by on-line fraudulences to demand paying the ransom by a target.

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Most of the cases, Ransom:Win32/LockScreen.BD virus will certainly instruct its victims to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the target’s device.

Ransom:Win32/LockScreen.BD Summary

These alterations 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.
  • A process created a hidden window;
  • Unconventionial language used in binary resources: Russian;
  • Crashed cuckoomon during analysis. Report this error to the Github repo.;
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the victim’s hard disk drive — so the victim can no longer make use of the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Ransom:Win32/LockScreen.BD

The most common channels where Ransom:Win32/LockScreen.BD Ransomware are injected are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a source that organizes a destructive software program;

As soon as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s PC or protect against the gadget from functioning in an appropriate manner – while also putting a ransom money note that mentions the demand for the targets to impact the repayment for the purpose of decrypting the papers or bring back the file system back to the preliminary problem. In most instances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually already been harmed.

Ransom:Win32/LockScreen.BD distribution networks.

In different corners of the world, Ransom:Win32/LockScreen.BD grows by jumps and bounds. Nonetheless, the ransom money notes and methods of extorting the ransom money quantity may vary relying on particular regional (regional) settings. The ransom money notes and also techniques of obtaining the ransom quantity might vary depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually discovered some unlicensed applications enabled on the target’s tool. The alert after that demands the user to pay the ransom.

    Faulty statements about unlawful material.

    In nations where software piracy is less popular, this approach is not as efficient for the cyber scams. Conversely, the Ransom:Win32/LockScreen.BD popup alert may falsely declare to be originating from a law enforcement institution and will report having situated kid porn or other illegal data on the gadget.

    Ransom:Win32/LockScreen.BD popup alert may falsely declare to be deriving from a regulation enforcement establishment and will certainly report having situated kid porn or various other illegal information on the tool. The alert will likewise have a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 0761AAEE
md5: 5d3c52af291a1c89738b917387ef9fcb
name: 5D3C52AF291A1C89738B917387EF9FCB.mlw
sha1: 2b78de2484e4001ad0d13c1855cb82ec5e8c6344
sha256: 887e577dc35ef4b864a720903e526a2bef48a8c05be22b5e85b64319026388e4
sha512: 08519201d1b67b272b1615053b6337404a531c9ae83c32f4973fa1bf1daabb0f1cff90ca48d5518fe429f48c8052d275b43ae561c1b01e8406376ae513a2f2fa
ssdeep: 6144:bt/7dDsVpzrPnCy3IKRtu/pbaYvgP25fazq7RfR0mbA7xRMi0q4X92c6DmktxQ/:1dDsV1nCncz8fhbORMj6DnxU7AVu3
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.BD also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 0055e4091 )
DrWebTrojan.Siggen3.48060
CynetMalicious (score: 100)
ALYacGen:Variant.Zusy.315696
CylanceUnsafe
ZillyaTrojan.Pihun.Win32.31
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_60% (W)
AlibabaRansom:Win32/LockScreen.179d7648
K7GWTrojan ( 0055e4091 )
Cybereasonmalicious.f291a1
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/LockScreen.AHP
APEXMalicious
AvastWin32:Trojan-gen
ClamAVWin.Trojan.Pihun-3
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Zusy.315696
NANO-AntivirusTrojan.Win32.Pihun.naasu
ViRobotTrojan.Win32.A.Pihun.784896
SUPERAntiSpywareTrojan.Agent/Gen-LockScreen
MicroWorld-eScanGen:Variant.Zusy.315696
TencentWin32.Trojan.Pihun.Swvc
Ad-AwareGen:Variant.Zusy.315696
SophosTroj/Necurs-DW
ComodoMalware@#3t3mmb4ro9lk3
BitDefenderThetaGen:NN.ZelphiF.34608.VGW@aOjx5Iac
VIPRETrojan.Win32.Generic.pak!cobra
McAfee-GW-EditionBehavesLike.Win32.Dropper.bm
FireEyeGeneric.mg.5d3c52af291a1c89
EmsisoftGen:Variant.Zusy.315696 (B)
SentinelOneStatic AI – Suspicious PE
WebrootW32.Trojan.Gen
AviraHEUR/AGEN.1111035
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/LockScreen.BD
ArcabitTrojan.Zusy.D4D130
GDataGen:Variant.Zusy.315696
AhnLab-V3Trojan/Win32.HDC.C150087
McAfeeArtemis!5D3C52AF291A
MAXmalware (ai score=100)
VBA32Hoax.Pihun
MalwarebytesMalware.AI.3359662051
PandaGeneric Malware
RisingRansom.Pihun!8.3180 (CLOUD)
YandexTrojan.GenAsa!dto1oGdCEt0
IkarusTrojan-Ransom.Pihun
FortinetW32/Blocker.APY!tr
AVGWin32:Trojan-gen
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Generic.HwUBpFcA

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