Written by Robert Bailey

What is MSIL/LockScreen.ABF infection?

In this short article you will locate regarding the definition of MSIL/LockScreen.ABF as well as its adverse impact on your computer. Such ransomware are a type of malware that is specified by online scams to require paying the ransom money by a sufferer.

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When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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Most of the situations, MSIL/LockScreen.ABF virus will certainly advise its victims to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually introduced to the sufferer’s gadget.

MSIL/LockScreen.ABF Summary

These alterations can be as complies with:

  • The binary likely contains encrypted or compressed data.;
  • Network activity detected but not expressed in API logs;
  • Ciphering the records situated on the sufferer’s hard drive — so the sufferer can no longer use the data;
  • Preventing regular access to the sufferer’s workstation;


One of the most normal channels through which MSIL/LockScreen.ABF Trojans are injected are:

  • By means of phishing e-mails;
  • As an effect of customer ending up on a source that holds a destructive software application;

As quickly as the Trojan is efficiently injected, it will either cipher the data on the sufferer’s PC or stop the gadget from working in a correct fashion – while additionally putting a ransom money note that discusses the demand for the sufferers to effect the settlement for the function of decrypting the records or recovering the data system back to the initial problem. In most circumstances, the ransom note will show up when the client restarts the PC after the system has already been harmed.

MSIL/LockScreen.ABF circulation networks.

In various edges of the globe, MSIL/LockScreen.ABF grows by leaps as well as bounds. Nevertheless, the ransom money notes and also techniques of obtaining the ransom money amount may differ depending upon particular regional (local) settings. The ransom notes and techniques of extorting the ransom quantity might differ depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In specific areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the sufferer’s tool. The sharp then demands the user to pay the ransom.

    Faulty declarations about prohibited material.

    In nations where software program piracy is much less prominent, this approach is not as effective for the cyber scams. Alternatively, the MSIL/LockScreen.ABF popup alert might falsely assert to be originating from a law enforcement organization and also will report having situated child porn or other unlawful information on the tool.

    MSIL/LockScreen.ABF popup alert may wrongly assert to be obtaining from a legislation enforcement institution and will certainly report having located youngster pornography or various other illegal information on the gadget. The alert will in a similar way contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: CB9884AF
md5: cdffaa1f9abf4ed805d3455047fd6698
name: CDFFAA1F9ABF4ED805D3455047FD6698.mlw
sha1: 0b39019b07f92298e4900c82f00c6f7ee3a61fb4
sha256: 30c98288fc5f0f2019129dc72d3f3de35a302de503cd283535284654b1098fcc
sha512: 05a00c7f37fe66e16871295f98614328b4c54a2a6116f0e6ffff857c1ab8f1ee351e056ed11106e1c8672b0b8b0baecbdc17defd223e470637208fc729f5ad63
ssdeep: 3072:kQb9KFk5UT1QLyHOWHpAIqndQOuevAqPMjttH3cIy0CF6C6qkrWPfbk:QFkk0Ex+IUdrvAqYttsIiGqkk
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2018
Assembly Version:
InternalName: Ransom.exe
ProductName: Ransom
FileDescription: Ransom
OriginalFilename: Ransom.exe

MSIL/LockScreen.ABF also known as:

GridinSoft Trojan.Ransom.Gen
ALYac Gen:Heur.Ransom.MSIL.1
Cylance Unsafe
Zillya Trojan.LockScreen.Win32.10233
Alibaba Trojan:MSIL/LockScreen.e3476718
K7GW Trojan ( 700000121 )
K7AntiVirus Trojan ( 700000121 )
Symantec Trojan Horse
ESET-NOD32 a variant of MSIL/LockScreen.ABF
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
BitDefender Gen:Heur.Ransom.MSIL.!diop!.1
MicroWorld-eScan Gen:Heur.Ransom.MSIL.!diop!.1
Tencent Win32.Trojan.Lockscreen.Tdzr
Ad-Aware Gen:Heur.Ransom.MSIL.!diop!.1
Sophos Mal/Generic-S
Comodo Malware@#3kxqx2i9ovdpb
BitDefenderTheta Gen:NN.ZemsilF.34142.km0@aezGGQc
Emsisoft Gen:Heur.Ransom.MSIL.!diop!.1 (B)
SentinelOne Static AI – Malicious PE
Avira TR/LockScreen.pdtmn
Antiy-AVL Trojan/Generic.ASMalwS.299A18A
Microsoft Trojan:Win32/Occamy.C
Arcabit Trojan.Ransom.MSIL.!diop!.1
GData Gen:Heur.Ransom.MSIL.!diop!.1
McAfee Artemis!CDFFAA1F9ABF
MAX malware (ai score=86)
Malwarebytes MachineLearning/Anomalous.94%
Panda Trj/GdSda.A
Yandex Trojan.LockScreen!cSIDdlFIeNA
Ikarus Gen.Ransom
MaxSecure Trojan.Malware.300983.susgen
Fortinet MSIL/LockScreen.ABF!tr
AVG Win32:Malware-gen

How to remove MSIL/LockScreen.ABF 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.

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 MSIL/LockScreen.ABF 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 MSIL/LockScreen.ABF you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site:
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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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