Ransom:Win32/LockScreen.CU

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

What is Ransom:Win32/LockScreen.CU infection?

In this article you will certainly find about the meaning of Ransom:Win32/LockScreen.CU as well as 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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Most of the situations, Ransom:Win32/LockScreen.CU ransomware will advise its sufferers to initiate funds transfer for the function of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s gadget.

Ransom:Win32/LockScreen.CU Summary

These modifications can be as complies with:

  • Creates RWX memory;
  • Unconventionial language used in binary resources: Russian;
  • The executable is compressed using UPX;
  • Installs itself for autorun at Windows startup;
  • Network activity detected but not expressed in API logs;
  • Attempts to block SafeBoot use by removing registry keys;
  • Anomalous binary characteristics;
  • Ciphering the papers situated on the sufferer’s hard drive — so the sufferer can no longer utilize the data;
  • Preventing regular access to the sufferer’s workstation;

Ransom:Win32/LockScreen.CU

The most regular channels through which Ransom:Win32/LockScreen.CU are injected are:

  • By means of phishing emails;
  • As an effect of user ending up on a resource that holds a harmful software program;

As soon as the Trojan is successfully injected, it will either cipher the information on the sufferer’s PC or stop the tool from working in a correct fashion – while additionally putting a ransom note that mentions the need for the sufferers to effect the repayment for the objective of decrypting the documents or bring back the documents system back to the first condition. In a lot of circumstances, the ransom money note will certainly turn up when the client restarts the PC after the system has currently been harmed.

Ransom:Win32/LockScreen.CU circulation networks.

In various corners of the globe, Ransom:Win32/LockScreen.CU grows by leaps as well as bounds. Nonetheless, the ransom money notes and tricks of extorting the ransom money amount might vary depending on certain neighborhood (regional) settings. The ransom notes and tricks of obtaining the ransom money quantity may differ depending on certain neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having spotted some unlicensed applications allowed on the victim’s gadget. The sharp then demands the customer to pay the ransom money.

    Faulty statements about prohibited material.

    In countries where software piracy is much less prominent, this approach is not as efficient for the cyber fraudulences. Alternatively, the Ransom:Win32/LockScreen.CU popup alert might wrongly declare to be stemming from a police organization and will certainly report having situated child pornography or other illegal data on the gadget.

    Ransom:Win32/LockScreen.CU popup alert might incorrectly declare to be deriving from a legislation enforcement establishment and also will report having located youngster porn or various other illegal data on the gadget. The alert will in a similar way have a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: AD171CE3
md5: c8fcb8dcae6f7ae713cbff384b497bc9
name: C8FCB8DCAE6F7AE713CBFF384B497BC9.mlw
sha1: ec688e34fca6bf8c465d233633836c1b568d5ac2
sha256: 320c8a39266a254ecd7ed2e99e48abe288218707e76af119d1538e11d1c113c4
sha512: b8ccc899c6e76eac6fca1df629513df5e9a999089ced7ef11e2c7761a3771756de1fcf60f2d8952b49f69a9549897a4bee09d4d6d700862892fc5ebfbb7a446c
ssdeep: 12288:wfCWvFrEtC6r8Zu0HNqvMbO2iyouKqkXePukQyUoS:W9drEfr8rNqgOdkqof
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

0: [No Data]

Ransom:Win32/LockScreen.CU also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004bcce41 )
Elasticmalicious (high confidence)
DrWebTrojan.Siggen4.26223
CynetMalicious (score: 100)
ALYacGen:Variant.Symmi.31523
CylanceUnsafe
ZillyaTrojan.Vishmaster.Win32.6
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_80% (D)
K7GWTrojan ( 004bcce41 )
Cybereasonmalicious.cae6f7
CyrenW32/Banker.BL.gen!Eldorado
SymantecML.Attribute.HighConfidence
ESET-NOD32a variant of Win32/Vishmaster.AA
ZonerTrojan.Win32.10772
APEXMalicious
AvastWin32:Ransom-NQ [Trj]
KasperskyUDS:DangerousObject.Multi.Generic
BitDefenderGen:Variant.Symmi.31523
NANO-AntivirusTrojan.Win32.TrjGen.deuqfg
ViRobotTrojan.Win32.A.Vishmaster.564224
MicroWorld-eScanGen:Variant.Symmi.31523
TencentWin32.Trojan.Crypt.cycy
Ad-AwareGen:Variant.Symmi.31523
SophosMal/Generic-S
ComodoPacked.Win32.MUPX.Gen@24tbus
BitDefenderThetaGen:NN.ZelphiCO.34142.ImW@aSYjBUic
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.hh
FireEyeGeneric.mg.c8fcb8dcae6f7ae7
EmsisoftGen:Variant.Symmi.31523 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan/Generic.ajfeb
WebrootW32.Malware.Gen
AviraTR/Crypt.XPACK.Gen
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftRansom:Win32/LockScreen.CU
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataGen:Variant.Symmi.31523
AhnLab-V3Trojan/Win32.Banload.R157507
Acronissuspicious
McAfeeGenericR-DZB!C8FCB8DCAE6F
MAXmalware (ai score=88)
VBA32Hoax.Vishmaster
PandaTrj/CI.A
YandexTrojan.GenAsa!GE5EPFGbSH4
IkarusTrojan-Banker.Win32.Banker
MaxSecureTrojan.Malware.300983.susgen
FortinetW32/LockScreen.AFC!tr
AVGWin32:Ransom-NQ [Trj]
Paloaltogeneric.ml

How to remove Ransom:Win32/LockScreen.CU virus?

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 Ransom:Win32/LockScreen.CU 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 Ransom:Win32/LockScreen.CU 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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