Win32/LockScreen.YB

What is Win32/LockScreen.YB infection?

In this short article you will certainly find regarding the meaning of Win32/LockScreen.YB and its unfavorable effect on your computer system. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom money by a sufferer.

Most of the instances, Win32/LockScreen.YB ransomware will certainly advise its targets to start funds transfer for the function of reducing the effects of the amendments that the Trojan infection has presented to the target’s tool.

Win32/LockScreen.YB Summary

These modifications 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.
  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Russian;
  • Uses Windows utilities for basic functionality;
  • Installs an hook procedure to monitor for mouse events;
  • Sniffs keystrokes;
  • Attempts to restart the guest VM;
  • 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 found on the sufferer’s disk drive — so the sufferer can no longer use the information;
  • 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.
Similar behavior
Related domains
z.whorecord.xyz W32/Ransom.E.gen!Eldorado
a.tomx.xyz W32/Ransom.E.gen!Eldorado
redirector.gvt1.com W32/Ransom.E.gen!Eldorado
r8—sn-bpb5oxu-3c2r.gvt1.com W32/Ransom.E.gen!Eldorado
update.googleapis.com W32/Ransom.E.gen!Eldorado

Win32/LockScreen.YB

The most normal channels where Win32/LockScreen.YB Ransomware are infused are:

  • By means of phishing emails;
  • As an effect of customer winding up on a source that holds a malicious software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from working in a proper way – while likewise positioning a ransom note that mentions the requirement for the targets to effect the settlement for the objective of decrypting the records or bring back the file system back to the first condition. In a lot of instances, the ransom note will show up when the client restarts the COMPUTER after the system has currently been damaged.

Win32/LockScreen.YB circulation channels.

In different edges of the globe, Win32/LockScreen.YB grows by jumps and also bounds. Nevertheless, the ransom money notes and also methods of extorting the ransom money amount may vary depending on certain local (regional) settings. The ransom money notes and methods of extorting the ransom money quantity may vary depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software.

    In specific locations, the Trojans frequently wrongfully report having discovered some unlicensed applications enabled on the sufferer’s gadget. The sharp then requires the user to pay the ransom.

    Faulty statements regarding unlawful material.

    In countries where software application piracy is much less prominent, this approach is not as effective for the cyber scams. Additionally, the Win32/LockScreen.YB popup alert may wrongly declare to be originating from a police establishment and also will certainly report having located youngster porn or other unlawful data on the gadget.

    Win32/LockScreen.YB popup alert might falsely claim to be deriving from a regulation enforcement establishment and also will certainly report having situated child pornography or various other prohibited information on the tool. The alert will similarly have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: CE4AACE8md5: ec94f3b155556ee26897de77103263d2name: EC94F3B155556EE26897DE77103263D2.mlwsha1: bf81e0c07ff12140b9829cd698c6a28cc46ff62esha256: 10839eefe6d0b797ffd153687d53908e85eb509fa9011286f7eaa3e7bbe18381sha512: 2e11e7607cf4d9d8e384e17c3c43f0d1242c2cb60a2d4a32a9d6b9f898905ef79633221546ea9850d00d348cd1ec2d3d4f6e40ccebdef4d30e38571d5f652f17ssdeep: 768:w5zeX5cUo6Cg43B3KUEf8rKOFwbquxuzdB2jhbhikGyRvED/nUJgiTUA0O6a+s8:kqXoa4VKUrK8ouBB+tikiUJgFs4Vtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/LockScreen.YB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0055e4091 )
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop2.63446
Cynet Malicious (score: 100)
ALYac Gen:Variant.Ser.Mikey.2065
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.7236
Sangfor Trojan.Win32.Save.a
Alibaba Trojan:Win32/LockScreen.52d2af1f
K7GW Trojan ( 0055e4091 )
Cybereason malicious.155556
Cyren W32/Ransom.E.gen!Eldorado
Symantec Trojan.Ransomlock.F
ESET-NOD32 a variant of Win32/LockScreen.YB
APEX Malicious
Avast Win32:LockScreen-DE [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ser.Mikey.2065
NANO-Antivirus Trojan.Win32.HmBlocker.cemlin
MicroWorld-eScan Gen:Variant.Ser.Mikey.2065
Tencent Win32.Trojan.Lockscreen.Anfo
Ad-Aware Gen:Variant.Ser.Mikey.2065
Sophos ML/PE-A + Mal/EncPk-ZC
Comodo TrojWare.Win32.Trojan.Ransom.~C@465pdo
BitDefenderTheta AI:Packer.94EFE6EE1F
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Generic.mm
FireEye Generic.mg.ec94f3b155556ee2
Emsisoft Gen:Variant.Ser.Mikey.2065 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/HomoBlocker.bk
Avira TR/Dropper.Gen
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Generic.ASMalwS.9A1B4C
Microsoft Trojan:Win32/Occamy.C
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Ser.Mikey.2065
AhnLab-V3 Trojan/Win32.HmBlocker.C4096274
McAfee Artemis!EC94F3B15555
MAX malware (ai score=100)
VBA32 BScope.TrojanPSW.Papras
Panda Trj/CI.A
Rising [email protected] (RDML:0RWCiXUgiC/mjVlnNSTYOw)
Yandex Trojan.GenAsa!66ZSSs8h8+Q
Ikarus Trojan-Ransom.HmBlocker
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Agent.XOR!tr
AVG Win32:LockScreen-DE [Trj]
Paloalto generic.ml

How to remove Win32/LockScreen.YB ransomware?

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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/LockScreen.YB you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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