What is MSIL/LockScreen.CI infection?

In this post you will discover concerning the meaning of MSIL/LockScreen.CI and also its negative impact on your computer. Such ransomware are a kind of malware that is elaborated by online frauds to require paying the ransom by a victim.

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Most of the cases, MSIL/LockScreen.CI virus will certainly instruct its sufferers to start funds move for the objective of reducing the effects of the modifications that the Trojan infection has presented to the target’s tool.

MSIL/LockScreen.CI Summary

These alterations can be as follows:

  • 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.
  • 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.
  • A process attempted to delay the analysis task.;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records found on the victim’s hard drive — so the victim can no more make use of the data;
  • Preventing normal accessibility to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most typical networks through which MSIL/LockScreen.CI Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that hosts a destructive software;

As soon as the Trojan is effectively injected, it will either cipher the information on the victim’s computer or avoid the gadget from working in a proper way – while also positioning a ransom note that states the requirement for the targets to effect the payment for the function of decrypting the documents or bring back the data system back to the first condition. In most instances, the ransom note will certainly turn up when the client reboots the PC after the system has actually already been damaged.

MSIL/LockScreen.CI circulation networks.

In different edges of the world, MSIL/LockScreen.CI grows by jumps as well as bounds. Nevertheless, the ransom money notes as well as methods of extorting the ransom money quantity may differ relying on specific regional (local) setups. The ransom notes as well as techniques of extorting the ransom amount may vary depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software program.

    In certain locations, the Trojans usually wrongfully report having spotted some unlicensed applications enabled on the target’s gadget. The alert then requires the customer to pay the ransom.

    Faulty declarations concerning prohibited content.

    In countries where software piracy is less preferred, this technique is not as effective for the cyber scams. Additionally, the MSIL/LockScreen.CI popup alert may wrongly declare to be originating from a law enforcement organization and will report having located youngster porn or other prohibited data on the device.

    MSIL/LockScreen.CI popup alert may incorrectly declare to be deriving from a regulation enforcement organization and will report having located child porn or other prohibited data on the tool. The alert will likewise have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: F1F88706
md5: bac5be8d53c7a108318df7181f8545aa
name: BAC5BE8D53C7A108318DF7181F8545AA.mlw
sha1: a5861491b530d8cb069655c72f803f5e4e13ac26
sha256: 7f1586a64aa6b553529ff5ef30fa62edb39d699039a1472073e518b71b992d21
sha512: 8fcde0bd49462315df71b81a1de7009df2144609a82cc25178689514e5eda0711f232d60e033cfe5aa31ae7f17e5fc3f6915308a4fc3adff92c480a58b5992af
ssdeep: 768:MMaOdCvatBoik8Qp6dOBohUHHn0Amp5k7I4B:rhdCCtfQpDehiH0hpi7v
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 Microsoft 2012
Assembly Version:
InternalName: html_wl_with_res.exe
CompanyName: Microsoft
ProductName: html_wl_with_res
FileDescription: html_wl_with_res
OriginalFilename: html_wl_with_res.exe

MSIL/LockScreen.CI also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb Trojan.Winlock.7695
Cynet Malicious (score: 85)
ALYac Gen:Variant.MSILPerseus.174178
Cylance Unsafe
Zillya Trojan.Blocker.Win32.4691
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_70% (D)
Cybereason malicious.d53c7a
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of MSIL/LockScreen.CI
APEX Malicious
Avast MSIL:LockScreen-L [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.MSILPerseus.174178
NANO-Antivirus Trojan.Win32.Winlock.benauw
MicroWorld-eScan Gen:Variant.MSILPerseus.174178
Tencent Win32.Trojan.Blocker.cssz
Ad-Aware Gen:Variant.MSILPerseus.174178
Sophos Mal/Generic-S
Comodo Malware@#p2fq0qe145tn
BitDefenderTheta Gen:NN.ZemsilF.34628.cm0@amphcwg
VIPRE Trojan.Win32.Generic!BT
Emsisoft Gen:Variant.MSILPerseus.174178 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1109013
eGambit Unsafe.AI_Score_99%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft Trojan:Win32/Malagent
GData Gen:Variant.MSILPerseus.174178
AhnLab-V3 Trojan/Win32.Blocker.R48091
MAX malware (ai score=86)
VBA32 Hoax.Blocker
Panda Trj/OCJ.B
Rising Ransom.Blocker!8.12A (CLOUD)
Ikarus Trojan-Ransom.Blocker
Fortinet W32/Blocker.AEXD!tr
AVG MSIL:LockScreen-L [Trj]

How to remove MSIL/LockScreen.CI 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 MSIL/LockScreen.CI 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 MSIL/LockScreen.CI you can always ask me in the comments for getting help.

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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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