MSIL/CoinMiner.J

What is MSIL/CoinMiner.J infection?

In this article you will discover about the interpretation of MSIL/CoinMiner.J and its adverse effect on your computer. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom by a target.

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In the majority of the situations, MSIL/CoinMiner.J ransomware will instruct its victims to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has presented to the target’s gadget.

MSIL/CoinMiner.J 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.
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s disk drive — so the victim can no more use the data;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

MSIL/CoinMiner.J

The most common channels where MSIL/CoinMiner.J are injected are:

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

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or stop the device from functioning in a proper manner – while likewise placing a ransom money note that mentions the requirement for the sufferers to impact the settlement for the function of decrypting the documents or recovering the data system back to the preliminary problem. In the majority of circumstances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

MSIL/CoinMiner.J circulation networks.

In different corners of the world, MSIL/CoinMiner.J expands by jumps as well as bounds. Nonetheless, the ransom notes as well as tricks of obtaining the ransom amount may differ relying on certain local (regional) settings. The ransom notes and also methods of obtaining the ransom money amount might differ depending on certain local (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In certain locations, the Trojans commonly wrongfully report having actually identified some unlicensed applications made it possible for on the sufferer’s gadget. The sharp then demands the customer to pay the ransom.

    Faulty statements about illegal content.

    In countries where software piracy is much less popular, this method is not as effective for the cyber scams. Conversely, the MSIL/CoinMiner.J popup alert might falsely declare to be originating from a law enforcement establishment and will certainly report having located kid porn or other illegal information on the device.

    MSIL/CoinMiner.J popup alert might incorrectly assert to be obtaining from a law enforcement institution and also will report having located youngster porn or various other unlawful data on the device. The alert will in a similar way contain a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 9A7D41B6
md5: ad2b4aeb43cbffa19ab6b4cbee45dd9a
name: AD2B4AEB43CBFFA19AB6B4CBEE45DD9A.mlw
sha1: 45c477d19c53a18e266c05ee218ddd2c1f791cd1
sha256: d671e4d09bc05db9c32e3cbb865f22aa95376c09d37ca5cdc574d41aa9548ce8
sha512: 51a18c7d19e3dc4b39b48496cec82d88812b65facd05bdeaa4c81efc7b5b5972c04fd2f4dfec85131c4a2c3287de07a620d181ab9e52a8814954f620b233fe7d
ssdeep: 384:vZq3/8asPWBQeBPukDX+gtCJuKjX3h6Y8Ne3Rd2+TFO+mbBeOWvDA8e:vrTw9jE31/mbBeOWvkF
type: PE32 executable (GUI) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright: Copyright xa9 2017
Assembly Version: 1.0.0.0
InternalName: Windows explorer.exe
FileVersion: 1.0.0.0
ProductVersion: 1.0.0.0
FileDescription: Windows explorer
OriginalFilename: Windows explorer.exe

MSIL/CoinMiner.J also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Riskware ( 0040eff71 )
DrWeb Trojan.MulDrop7.29712
Cynet Malicious (score: 85)
ALYac Worm.Generic.903811
Cylance Unsafe
Zillya Trojan.Blocker.Win32.38249
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (W)
Alibaba Ransom:Win32/Blocker.0f5c55c7
K7GW Riskware ( 0040eff71 )
Cybereason malicious.b43cbf
Symantec ML.Attribute.HighConfidence
ESET-NOD32 MSIL/CoinMiner.J
APEX Malicious
Avast Win32:Malware-gen
BitDefender Worm.Generic.903811
NANO-Antivirus Trojan.Win32.Blocker.eqagkq
MicroWorld-eScan Worm.Generic.903811
Tencent Win32.Trojan.Blocker.Lneh
Ad-Aware Worm.Generic.903811
Sophos Mal/Generic-S
Comodo Malware@#2zdheam6g79ez
BitDefenderTheta Gen:NN.ZemsilF.34670.cm0@aaxcDBb
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_Blocker.R002C0PAO21
McAfee-GW-Edition GenericRXDY-KJ!AD2B4AEB43CB
FireEye Generic.mg.ad2b4aeb43cbffa1
Emsisoft Worm.Generic.903811 (B)
SentinelOne Static AI – Malicious PE
Avira TR/ATRAPS.Gen
eGambit Unsafe.AI_Score_97%
Microsoft Backdoor:Win32/Bladabindi!ml
GData Worm.Generic.903811
McAfee GenericRXDY-KJ!AD2B4AEB43CB
MAX malware (ai score=84)
VBA32 TScope.Trojan.MSIL
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_Blocker.R002C0PAO21
Rising Ransom.Blocker!8.12A (CLOUD)
Yandex Trojan.Blocker!WahgAefIvRU
Ikarus Trojan-Downloader
Fortinet W32/Blocker.KBYT!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Blocker.HgIASRsA

How to remove MSIL/CoinMiner.J 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 MSIL/CoinMiner.J 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/CoinMiner.J 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/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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