Win32/LockScreen.YF

Written by Robert Bailey

What is Win32/LockScreen.YF infection?

In this short article you will certainly find concerning the definition of Win32/LockScreen.YF and also its adverse impact on your computer. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom money by a victim.

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In the majority of the instances, Win32/LockScreen.YF infection will certainly instruct its sufferers to launch funds transfer for the objective of counteracting the changes that the Trojan infection has presented to the sufferer’s gadget.

Win32/LockScreen.YF Summary

These adjustments can be as follows:

  • Executable code extraction;
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Unconventionial language used in binary resources: Russian;
  • Deletes its original binary from disk;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Installs itself for autorun at Windows startup;
  • Network activity detected but not expressed in API logs;
  • Detects VirtualBox through the presence of a registry key;
  • Anomalous binary characteristics;
  • Ciphering the records situated on the victim’s hard drive — so the target can no longer use the data;
  • Preventing regular access to the sufferer’s workstation;

Win32/LockScreen.YF

One of the most normal channels through which Win32/LockScreen.YF Trojans are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of individual winding up on a source that organizes a destructive software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the tool from operating in an appropriate manner – while additionally putting a ransom money note that discusses the requirement for the sufferers to effect the repayment for the purpose of decrypting the records or bring back the file system back to the initial condition. In many instances, the ransom money note will certainly come up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/LockScreen.YF circulation channels.

In various edges of the world, Win32/LockScreen.YF expands by leaps and bounds. Nonetheless, the ransom money notes and also techniques of obtaining the ransom amount may differ relying on certain regional (regional) setups. The ransom notes as well as techniques of obtaining the ransom money quantity might vary depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software.

    In specific locations, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the victim’s tool. The sharp after that demands the user to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software application piracy is much less preferred, this method is not as reliable for the cyber fraudulences. Alternatively, the Win32/LockScreen.YF popup alert may incorrectly declare to be stemming from a police organization and also will report having located child pornography or other unlawful information on the gadget.

    Win32/LockScreen.YF popup alert may incorrectly assert to be deriving from a law enforcement institution and will certainly report having located youngster porn or various other illegal information on the device. The alert will in a similar way consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 14160FD7
md5: f3c746a0c69c4ac4e1226eb3ce2a25ad
name: F3C746A0C69C4AC4E1226EB3CE2A25AD.mlw
sha1: 3b69683f5b96d75e8f5971d592702e4b21ddb683
sha256: d096be1a00be72e5afa9ee91797d497a539b1ff805d7cd03443bf253ee28a641
sha512: a2fdce186e651e55590ccc93865f082c375e7e06154402eea5bd3fbddfec4a202722cb9f5b1ee53be13fad491457166331ffdc87866da3d0ef5399e408f455d8
ssdeep: 1536:L+wW+PHa1t91TvBLaBlozK3E+3SHfsRI/fER1xAoZ:L+F+y1tsBlozK0H0RI/8R5
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/LockScreen.YF also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 0055e4091 )
Lionic Trojan.Win32.PornoBlocker.j!c
Elastic malicious (high confidence)
DrWeb Trojan.Click2.46869
Cynet Malicious (score: 100)
Cylance Unsafe
CrowdStrike win/malicious_confidence_70% (D)
Alibaba Ransom:Win32/PornoBlocker.6792fcdf
K7GW Trojan ( 0055e4091 )
Cybereason malicious.f5b96d
Cyren W32/Risk.RHJZ-6804
Symantec ML.Attribute.HighConfidence
ESET-NOD32 Win32/LockScreen.YF
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Pornoblocker-716
Kaspersky Trojan-Ransom.Win32.PornoBlocker.bic
NANO-Antivirus Trojan.Win32.PornoBlocker.cwbtq
ViRobot Trojan.Win32.A.PornoBlocker.125440
Tencent Win32.Trojan.Pornoblocker.Edxf
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Spy.Zbot.DTNY@4pp6dp
BitDefenderTheta Gen:NN.ZexaF.34142.hqY@a0wfwejc
VIPRE Trojan.Win32.Generic!BT
TrendMicro TROJ_RANSOM.ER
McAfee-GW-Edition BehavesLike.Win32.Bamital.ch
FireEye Generic.mg.f3c746a0c69c4ac4
SentinelOne Static AI – Malicious PE
Jiangmin Trojan/PornoBlocker.yk
Webroot Trojan:Win32/LockScreen
Avira HEUR/AGEN.1132120
Antiy-AVL Trojan/Generic.ASMalwS.20321C
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/LockScreen
TACHYON Trojan/W32.PornoBlocker.125440
AhnLab-V3 Trojan/Win32.RL_PornoBlocker.R329162
McAfee Artemis!F3C746A0C69C
MAX malware (ai score=100)
VBA32 BScope.Trojan.Dropper.we
Panda Generic Malware
TrendMicro-HouseCall TROJ_RANSOM.ER
Yandex Trojan.GenAsa!axRgtms6E08
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/PornoBlocker.BIC!tr
AVG Win32:Malware-gen

How to remove Win32/LockScreen.YF 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.YF 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/LockScreen.YF 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: http://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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