Win32/LockScreen.AJU

What is Win32/LockScreen.AJU infection?

In this short article you will certainly locate concerning the interpretation of Win32/LockScreen.AJU and also its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom by a sufferer.

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Most of the instances, Win32/LockScreen.AJU ransomware will certainly advise its targets to initiate funds transfer for the purpose of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s tool.

Win32/LockScreen.AJU Summary

These modifications can be as follows:

  • 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.
  • 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.
  • The executable is compressed using UPX;
  • 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
  • Ciphering the papers situated on the target’s disk drive — so the target can no more utilize the data;
  • Preventing normal 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.AJU

The most common channels through which Win32/LockScreen.AJU are injected are:

  • By ways of phishing e-mails;
  • As an effect of user winding up on a source that holds a destructive software program;

As soon as the Trojan is effectively injected, it will either cipher the information on the target’s computer or protect against the gadget from functioning in an appropriate fashion – while additionally placing a ransom note that mentions the requirement for the sufferers to impact the repayment for the objective of decrypting the documents or restoring the file system back to the preliminary problem. In most circumstances, the ransom note will certainly show up when the client reboots the PC after the system has already been harmed.

Win32/LockScreen.AJU distribution channels.

In various corners of the globe, Win32/LockScreen.AJU expands by leaps as well as bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom quantity might vary depending on specific local (local) setups. The ransom money notes as well as tricks of extorting the ransom amount might vary depending on particular local (regional) setups.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software.

    In certain locations, the Trojans often wrongfully report having identified some unlicensed applications enabled on the target’s tool. The alert then requires the user to pay the ransom.

    Faulty statements concerning unlawful material.

    In nations where software program piracy is less preferred, this technique is not as effective for the cyber fraudulences. Conversely, the Win32/LockScreen.AJU popup alert may wrongly claim to be stemming from a law enforcement organization and also will certainly report having located child pornography or other illegal information on the tool.

    Win32/LockScreen.AJU popup alert might incorrectly assert to be deriving from a law enforcement institution and will certainly report having situated child pornography or various other prohibited data on the tool. The alert will similarly consist of a need for the individual to pay the ransom.

Technical details

File Info:

crc32: B161FCF8
md5: 8c05c4937be132534245244da6701864
name: 8C05C4937BE132534245244DA6701864.mlw
sha1: a1b9513017a1eca37a615e5838f8e7ee3c132546
sha256: 8fb04a7cf3d9fd68530c03e8dc7082f440b03d8317708597926e24038c7eb2f0
sha512: 043718ff3eb1a8c887fc961d279361981b09f2533d59f97986b55481045e92d7d59041aa1179f18dcbb80cb0bc44dac45d7a05cd19c217da0227aec5c1c829aa
ssdeep: 1536:fUkUeRDKkdjFfDxrwK/3L1Gk3e/5lcui4RUhbIDNKDRmdJ5CMK2FY2O6jOtESMg:gMtt/3ok3e/bcuxgbIRK1mbMMKoYYat
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Repay xa9 Incest Until 1995-2006
InternalName: Dough Nasal Lola Vats Marx
FileVersion: 1.1
CompanyName: Pinnacle Systems
Comments: Bars Van Tomb Check Scorn Boils
ProductName: Cinch Alma Tapes Lumpy Myopia Note
ProductVersion: 1.1
FileDescription: Beans Icbm
OriginalFilename: Trudy.exe
Translation: 0x0409 0x04b0

Win32/LockScreen.AJU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( f1000f011 )
Elastic malicious (high confidence)
DrWeb Trojan.Winlock.5498
Cynet Malicious (score: 100)
ALYac Gen:Variant.Barys.76750
Cylance Unsafe
Zillya Trojan.Gimemo.Win32.1566
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/LockScreen.e022bfbc
K7GW Trojan ( f1000f011 )
Cybereason malicious.37be13
Cyren W32/SuspPack.EC.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/LockScreen.AJU
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Barys.76750
NANO-Antivirus Trojan.Win32.Gimemo.jsofi
SUPERAntiSpyware Trojan.Agent/Gen-Figler
MicroWorld-eScan Gen:Variant.Barys.76750
Tencent Win32.Trojan.Lockscreen.Eadh
Ad-Aware Gen:Variant.Barys.76750
Sophos ML/PE-A + Mal/Ransom-L
Comodo Suspicious@#24ylcj9lguqce
BitDefenderTheta Gen:NN.ZexaF.34608.fmKfamjdBDli
VIPRE Trojan.Win32.EncPk.acl (v)
McAfee-GW-Edition Generic Dropper.ach
FireEye Generic.mg.8c05c4937be13253
Emsisoft Gen:Variant.Barys.76750 (B)
SentinelOne Static AI – Suspicious PE
Webroot W32.Malware.Gen
Avira TR/Crypt.ULPM.Gen
eGambit Generic.Malware
Microsoft Ransom:Win32/Loktrom.B
Arcabit Trojan.Barys.D12BCE
GData Gen:Variant.Barys.76750
AhnLab-V3 Trojan/Win32.Gimemo.R20468
Acronis suspicious
McAfee Artemis!8C05C4937BE1
MAX malware (ai score=100)
VBA32 Hoax.Gimemo
Malwarebytes Malware.Heuristic.1003
Panda Trj/Genetic.gen
Rising Ransom.Loktrom!8.B04 (CLOUD)
Ikarus Trojan.Win32.Ransom
MaxSecure Trojan.Malware.3571146.susgen
Fortinet W32/Gimemo.HMP!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwsB4PoA

How to remove Win32/LockScreen.AJU 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

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.

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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.AJU 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.AJU 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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