Win32/LockScreen.BNW

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

What is Win32/LockScreen.BNW infection?

In this short article you will discover regarding the meaning of Win32/LockScreen.BNW and also its negative influence on your computer system. Such ransomware are a form of malware that is specified by on-line fraudulences to demand paying the ransom by a sufferer.

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In the majority of the situations, Win32/LockScreen.BNW ransomware will certainly instruct its victims to initiate funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has actually introduced to the victim’s tool.

Win32/LockScreen.BNW Summary

These adjustments can be as complies with:

  • 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.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Sniffs keystrokes;
  • 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.
  • Ciphering the files situated on the target’s hard drive — so the victim can no longer make use of the data;
  • Preventing routine 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.BNW

One of the most normal networks whereby Win32/LockScreen.BNW Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of individual ending up on a resource that organizes a malicious software application;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or avoid the device from functioning in a correct fashion – while also putting a ransom note that states the requirement for the targets to effect the settlement for the objective of decrypting the records or restoring the documents system back to the preliminary problem. In most instances, the ransom money note will certainly turn up when the client restarts the COMPUTER after the system has already been damaged.

Win32/LockScreen.BNW circulation channels.

In different corners of the world, Win32/LockScreen.BNW grows by leaps and also bounds. Nonetheless, the ransom notes as well as tricks of extorting the ransom money amount may differ depending on specific regional (regional) settings. The ransom money notes and also techniques of extorting the ransom amount may differ depending on particular regional (regional) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In certain areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications made it possible for on the sufferer’s device. The sharp then demands the user to pay the ransom money.

    Faulty statements concerning prohibited material.

    In nations where software application piracy is much less popular, this method is not as efficient for the cyber frauds. Additionally, the Win32/LockScreen.BNW popup alert might incorrectly assert to be stemming from a law enforcement establishment and also will certainly report having located child porn or other illegal information on the tool.

    Win32/LockScreen.BNW popup alert might wrongly claim to be deriving from a law enforcement organization as well as will report having situated youngster pornography or other prohibited information on the gadget. The alert will in a similar way have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: E5E107F0
md5: 7807d63703587238c6bad998bece20e5
name: 7807D63703587238C6BAD998BECE20E5.mlw
sha1: 984828d629538d0686dcb505c364a2de0da409a7
sha256: ab1932c07e7f110afcc038c6729cc215ea95da8cf1adfdb739abc7866ad2fe67
sha512: f0bf2bdccd809e406391cdcea1ebb2d97f564c047d8d5c2ce87c6f2a90c27c27299e80c95b49b39b0adad328877e4392ef4a7fc4bccdce8d972bc4ea90cad64f
ssdeep: 12288:JYylC79CaV8zy7zA8DcsTBHJsynmX3dUMXnbTSC:JPjaV8yA8tdSGm9UMXbT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/LockScreen.BNW also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
DrWebTrojan.Winlock.9831
CynetMalicious (score: 100)
CylanceUnsafe
ZillyaTrojan.LockScreen.Win32.8129
SangforTrojan.Win32.Save.a
AlibabaTrojan:Win32/LockScreen.66cfd7f4
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.629538
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/LockScreen.BNW
APEXMalicious
AvastWin32:Malware-gen
KasperskyUDS:Trojan-Ransom.Win32.Foreign.hfoq
NANO-AntivirusTrojan.Win32.Winlock.eafcoz
SophosMal/Generic-S
ComodoMalware@#101ohdunumplz
BitDefenderThetaAI:Packer.43639CDA21
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Pluto.jh
FireEyeGeneric.mg.7807d63703587238
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Foreign.asz
AviraHEUR/AGEN.1105504
eGambitGeneric.Malware
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftTrojan:Win32/Fareit!ml
AegisLabTrojan.Multi.Generic.4!c
TACHYONRansom/W32.DP-Foreign.705024
AhnLab-V3Trojan/Win32.Foreign.C1452443
Acronissuspicious
McAfeeArtemis!7807D6370358
MAXmalware (ai score=100)
VBA32TScope.Trojan.Delf
PandaTrj/CI.A
RisingTrojan.Generic@ML.95 (RDMK:hxtjRrcFUlY6DrsSKiLyPg)
IkarusTrojan.Win32.LockScreen
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/Foreign.HFOQ!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/LockScreen.BNW 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 Win32/LockScreen.BNW 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.BNW 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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