Win32/LockScreen.AGM

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

What is Win32/LockScreen.AGM infection?

In this short article you will find regarding the meaning of Win32/LockScreen.AGM and also its negative impact on your computer system. Such ransomware are a form of malware that is elaborated by online scams to require paying the ransom money by a target.

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In the majority of the situations, Win32/LockScreen.AGM infection will advise its targets to launch funds transfer for the function of counteracting the changes that the Trojan infection has introduced to the sufferer’s gadget.

Win32/LockScreen.AGM Summary

These adjustments can be as complies with:

  • 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • 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
  • Creates a copy of itself;
  • 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 files found on the victim’s disk drive — so the victim can no longer use the data;
  • Preventing normal 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.

Win32/LockScreen.AGM

The most regular channels through which Win32/LockScreen.AGM Ransomware are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of user winding up on a resource that hosts a malicious software application;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or prevent the gadget from operating in an appropriate way – while also positioning a ransom note that discusses the requirement for the sufferers to effect the repayment for the function of decrypting the files or bring back the file system back to the initial condition. In many circumstances, the ransom note will turn up when the client restarts the PC after the system has already been damaged.

Win32/LockScreen.AGM circulation networks.

In various edges of the globe, Win32/LockScreen.AGM grows by leaps and bounds. However, the ransom notes and methods of extorting the ransom money quantity may differ depending upon specific local (local) settings. The ransom money notes and also methods of obtaining the ransom amount might differ depending on specific regional (regional) settings.

Ransomware injection

As an example:

    Faulty notifies regarding unlicensed software application.

    In particular areas, the Trojans often wrongfully report having actually discovered some unlicensed applications made it possible for on the sufferer’s device. The sharp after that requires the customer to pay the ransom money.

    Faulty declarations concerning prohibited content.

    In countries where software piracy is less popular, this approach is not as effective for the cyber fraudulences. Alternatively, the Win32/LockScreen.AGM popup alert may wrongly claim to be stemming from a police institution as well as will certainly report having situated kid pornography or other prohibited information on the device.

    Win32/LockScreen.AGM popup alert might incorrectly declare to be acquiring from a law enforcement institution as well as will certainly report having located youngster porn or other prohibited information on the gadget. The alert will in a similar way include a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 8B35A1B5
md5: b8b4944a1c90d6773d228967eed840ff
name: B8B4944A1C90D6773D228967EED840FF.mlw
sha1: 039c3467124a8c2a5bc7c50633f0b395e3c843b8
sha256: 70302f41731ddcb7cf72ebf53a110e82bb34f96f116bcc98cc9a1d8b9e9561d9
sha512: f73db1ae4d94af7904a1a2d36a5846820778378a32970a7f926219f2408a4dfe4868bc3f1afdafdb118c2fe9c6c969b87b3be372e6ca4cc8f4597884c8e5d6d6
ssdeep: 3072:Tp3KsB+gjdYbeKlqutx1EBAg0PALPag1O:V
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
LegalCopyright: Avogadro Agee Venezuela Acton Medford
InternalName: ag
FileVersion: 2.08.0006
CompanyName: Cecilia Leslie Stanford Neptune
Comments: Inca Aurelius
ProductName: Catalina Princeton
ProductVersion: 2.08.0006
FileDescription: Firestone Trumbull
OriginalFilename: ag.exe

Win32/LockScreen.AGM also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 00246cc31 )
Elasticmalicious (high confidence)
DrWebTrojan.MulDrop3.4468
CynetMalicious (score: 100)
ALYacGen:Variant.Ursu.217922
CylanceUnsafe
ZillyaTrojan.LockScreen.Win32.8099
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
AlibabaRansom:Win32/Timer.c77c8d99
K7GWTrojan ( 00246cc31 )
Cybereasonmalicious.a1c90d
CyrenW32/VBInject.1!Generic
SymantecML.Attribute.HighConfidence
ESET-NOD32Win32/LockScreen.AGM
APEXMalicious
AvastWin32:Cambot-O [Trj]
KasperskyTrojan-Ransom.Win32.Timer.gsy
BitDefenderGen:Variant.Ursu.217922
NANO-AntivirusTrojan.Win32.Timer.edicwb
MicroWorld-eScanGen:Variant.Ursu.217922
TencentWin32.Trojan.Timer.Phqa
Ad-AwareGen:Variant.Ursu.217922
SophosML/PE-A + Mal/VBCheMan-C
ComodoTrojWare.Win32.Agent.~kst@3yda0g
BitDefenderThetaAI:Packer.FFA7F1CB20
VIPRETrojan.Win32.Generic.pak!cobra
McAfee-GW-EditionBehavesLike.Win32.Fareit.ft
FireEyeGeneric.mg.b8b4944a1c90d677
EmsisoftGen:Variant.Ursu.217922 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Timer.ah
AviraTR/Dropper.Gen
eGambitGeneric.Malware
MicrosoftTrojan:Win32/Dynamer!ac
ArcabitTrojan.Ursu.D35342
AegisLabTrojan.Win32.Timer.j!c
GDataGen:Variant.Ursu.217922
AhnLab-V3Trojan/Win32.VBKrypt.C88263
McAfeePWS-Zbot.gen.bbp
MAXmalware (ai score=99)
VBA32BScope.Trojan.Jorik
PandaGeneric Malware
RisingRansom.Timer!8.30B6 (TFE:4:SPZLjD2ulFD)
IkarusTrojan-Ransom.Timer
FortinetW32/VBKrypt.EEQS!tr
AVGWin32:Cambot-O [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Worm.Cambot.HgIASOkA

How to remove Win32/LockScreen.AGM 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 Win32/LockScreen.AGM 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.AGM 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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