Win32/LockScreen.AGR

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

What is Win32/LockScreen.AGR infection?

In this post you will certainly discover concerning the definition of Win32/LockScreen.AGR and its unfavorable influence on your computer system. Such ransomware are a type of malware that is clarified by on-line fraudulences to require paying the ransom money by a target.

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In the majority of the cases, Win32/LockScreen.AGR virus will advise its sufferers to launch funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has introduced to the target’s tool.

Win32/LockScreen.AGR 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.
  • Unconventionial language used in binary resources: Russian;
  • 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
  • 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the sufferer’s hard disk drive — so the victim can no longer utilize the information;
  • Preventing regular accessibility to the victim’s workstation;

Win32/LockScreen.AGR

One of the most typical channels through which Win32/LockScreen.AGR Trojans are infused are:

  • By ways of phishing emails;
  • As an effect of customer ending up on a resource that holds a harmful software application;

As quickly as the Trojan is effectively infused, it will either cipher the data on the victim’s PC or stop the gadget from working in a proper fashion – while additionally positioning a ransom money note that points out the demand for the sufferers to effect the settlement for the purpose of decrypting the files or restoring the data system back to the initial problem. In a lot of circumstances, the ransom money note will come up when the client reboots the PC after the system has currently been harmed.

Win32/LockScreen.AGR circulation networks.

In numerous corners of the globe, Win32/LockScreen.AGR expands by jumps and bounds. Nevertheless, the ransom notes and methods of extorting the ransom quantity might differ depending on particular neighborhood (regional) setups. The ransom notes and techniques of obtaining the ransom amount may differ depending on specific neighborhood (local) settings.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software.

    In specific areas, the Trojans often wrongfully report having identified some unlicensed applications enabled on the sufferer’s gadget. The sharp then demands the customer to pay the ransom money.

    Faulty declarations about illegal web content.

    In countries where software piracy is less preferred, this technique is not as reliable for the cyber scams. Alternatively, the Win32/LockScreen.AGR popup alert may falsely declare to be originating from a police establishment and will report having located child pornography or other prohibited information on the tool.

    Win32/LockScreen.AGR popup alert might wrongly declare to be deriving from a legislation enforcement establishment and will certainly report having located youngster porn or various other unlawful information on the tool. The alert will likewise contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: EF164EDF
md5: 0ae5e24f55d77c691ba2152a0a56bca5
name: 0AE5E24F55D77C691BA2152A0A56BCA5.mlw
sha1: 60b725ece972a17b615104bf78a1c36eeed1437b
sha256: f879fd769ee53446247a01a772c311d5a4d0db2d0b22f5af4ceb17a1e19efaad
sha512: ca79f300a7d4dfeac99d6128a9ec5028563ea8f3e2573de5537293c3c01a89389ff76ef9bc24bd0f4d84d2109ad15cf48ea8d24c3362eca07fcdc153468f5799
ssdeep: 6144:j+GbWwy5t1IlIKrKtsWf7lda5gCHGdCL930z:EJb1ItM7ldaxHGdC53
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Win32/LockScreen.AGR also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 7000000f1 )
DrWebTrojan.Winlock
CynetMalicious (score: 100)
CAT-QuickHealRansom.Weenloc.A8
ALYacGen:Heur.Mint.Zard.40
CylanceUnsafe
ZillyaTrojan.Agent.Win32.134628
SangforRansom.Win32.Gimemo.cdnz
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Gimemo.aa20407f
K7GWTrojan ( 7000000f1 )
Cybereasonmalicious.f55d77
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/LockScreen.AGR
APEXMalicious
AvastFileRepMalware
KasperskyTrojan-Ransom.Win32.Gimemo.cdnz
BitDefenderGen:Heur.Mint.Zard.40
NANO-AntivirusTrojan.Win32.Agent.dagxk
MicroWorld-eScanGen:Heur.Mint.Zard.40
TencentWin32.Trojan.Gimemo.Jcn
Ad-AwareGen:Heur.Mint.Zard.40
SophosMal/Generic-S
ComodoMalware@#27h901opoc1ee
BitDefenderThetaGen:NN.ZelphiF.34690.nmGfaGbikaic
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_CHAMELEONUNLICENCE
McAfee-GW-EditionGenericR-HVB!42EBDECDF822
FireEyeGen:Heur.Mint.Zard.40
EmsisoftGen:Heur.Mint.Zard.40 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan/Agent.eqzn
WebrootW32.Malware.Gen
AviraTR/Dropper.Gen
KingsoftWin32.Heur.KVM011.a.(kcloud)
MicrosoftTrojan:Win32/Orsam!rts
ArcabitTrojan.Mint.Zard.40
GDataGen:Heur.Mint.Zard.40
McAfeeArtemis!0AE5E24F55D7
MAXmalware (ai score=100)
VBA32Hoax.ChameleonUnlicence
PandaGeneric Malware
TrendMicro-HouseCallTROJ_CHAMELEONUNLICENCE
RisingRansom.Gimemo!8.306 (CLOUD)
YandexTrojan.Agent!8l2okpL6Fms
IkarusTrojan-Dropper.Win32.Dinwod
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/LockScreen.AGR!tr
AVGFileRepMalware

How to remove Win32/LockScreen.AGR 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.AGR 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.AGR 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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