Written by Robert Bailey

What is Troj/MSIL-JHR infection?

In this short article you will find about the interpretation of Troj/MSIL-JHR and also its negative influence on your computer. Such ransomware are a kind of malware that is clarified by online fraudulences to demand paying the ransom money by a victim.

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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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In the majority of the situations, Troj/MSIL-JHR infection will certainly advise its victims to start funds transfer for the function of neutralizing the amendments that the Trojan infection has actually introduced to the target’s tool.

Troj/MSIL-JHR 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • Likely installs a bootkit via raw harddisk modifications;
  • Attempts to restart the guest VM;
  • Sniffs keystrokes;
  • Installs an hook procedure to monitor for mouse events;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • Likely virus infection of existing system binary;
  • Ciphering the files located on the victim’s hard disk — so the sufferer can no more use the information;
  • Preventing regular accessibility to the target’s workstation;


One of the most common channels whereby Troj/MSIL-JHR Ransomware are injected are:

  • By methods of phishing emails;
  • As a consequence of customer ending up on a source that hosts a harmful software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the data on the victim’s PC or protect against the gadget from working in a proper manner – while also placing a ransom note that points out the need for the victims to impact the payment for the function of decrypting the records or recovering the documents system back to the initial condition. In a lot of circumstances, the ransom money note will show up when the customer restarts the COMPUTER after the system has actually already been harmed.

Troj/MSIL-JHR distribution channels.

In different edges of the globe, Troj/MSIL-JHR grows by leaps as well as bounds. Nonetheless, the ransom money notes and methods of obtaining the ransom amount might differ depending on particular regional (local) settings. The ransom money notes and techniques of obtaining the ransom quantity may differ depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software application.

    In certain locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s tool. The alert then demands the customer to pay the ransom money.

    Faulty statements regarding unlawful content.

    In nations where software application piracy is less popular, this method is not as reliable for the cyber frauds. Alternatively, the Troj/MSIL-JHR popup alert may wrongly declare to be deriving from a law enforcement institution as well as will report having located child pornography or other unlawful data on the gadget.

    Troj/MSIL-JHR popup alert may incorrectly declare to be obtaining from a law enforcement establishment and also will report having located child pornography or various other prohibited data on the gadget. The alert will likewise include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 0E7EC875
md5: 3f6bfaa577b7be13705f41cc5b6cb1eb
name: 3F6BFAA577B7BE13705F41CC5B6CB1EB.mlw
sha1: 0a9cd77276ac62848eeb1c428cf9f05c0e0ec69c
sha256: 21780731ba0394eaa38254960f445321f2ca10450623855d8e2f1d6e30481022
sha512: 9f02e7fc31f7fe3ebebebc4b38f49cd885f91b5bc3ee0b7c0cb2f19f2e8f983aebf671197471b61f624dbc13183bac66f8c19d50fb3a501c269ea3d1a9029ce1
ssdeep: 24576:/7blFG2wAhxKw0cDJ/ztH6NtCsL96AEwZIOd++kD4mRkdqbhm:/75o2FfKwT1/x2btFtsTD4mRkdqbhm
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Comments: This installation was built with Inno Setup.
ProductName: UniKey
ProductVersion: 4.0 RC2
FileDescription: UniKey Setup
Translation: 0x0000 0x04b0

Troj/MSIL-JHR also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 004561691 )
DrWeb Trojan.Encoder.11527
ALYac Trojan.Ransom.GoldenEye
Cylance Unsafe
Zillya Trojan.Petr.Win32.30
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:MSIL/PETYA.ee90a01b
K7GW Trojan ( 004561691 )
Cybereason malicious.577b7b
Symantec Trojan.Gen
ESET-NOD32 a variant of MSIL/TrojanDropper.Small.AM
APEX Malicious
Avast Win32:Malware-gen
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Trojan.GenericKD.34297518
NANO-Antivirus Trojan.Win32.DarkKomet.dkmaxz
MicroWorld-eScan Trojan.GenericKD.34297518
Tencent Win32.Trojan.Petr.Lmvb
Ad-Aware Trojan.GenericKD.34297518
Sophos Troj/MSIL-JHR
Comodo Malware@#2wyk3wbhqh3a0
BitDefenderTheta Gen:NN.ZemsilF.34678.Io0@amAJIBe
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_PETYA.WRQ
FireEye Trojan.GenericKD.34297518
Emsisoft Trojan.GenericKD.34297518 (B)
Webroot W32.Gen.BT
Avira TR/Dropper.Gen
eGambit Unsafe.AI_Score_98%
Microsoft Ransom:Win32/Petya
Arcabit Trojan.Generic.D20B56AE
AegisLab Trojan.Win32.Generic.9!c
GData Trojan.GenericKD.34297518
McAfee Artemis!3F6BFAA577B7
MAX malware (ai score=100)
VBA32 Hoax.Petr
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_PETYA.WRQ
Rising Dropper.Small!8.433 (CLOUD)
Yandex Trojan.DR.Small!GFHDsR6jBCk
Ikarus Trojan-Dropper.MSIL.Small
Fortinet MSIL/Dropper.SJO!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Generic.HyoDezAA

How to remove Troj/MSIL-JHR 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 Troj/MSIL-JHR 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 Troj/MSIL-JHR 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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