Written by Robert Bailey

What is Win32/Injector.JCH infection?

In this post you will discover concerning the definition of Win32/Injector.JCH and also its adverse effect on your computer system. Such ransomware are a form of malware that is clarified by online scams to demand paying the ransom money by a target.

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In the majority of the cases, Win32/Injector.JCH ransomware will certainly advise its victims to start funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the target’s tool.

Win32/Injector.JCH Summary

These adjustments 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Expresses interest in specific running processes;
  • 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.
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Executed a process and injected code into it, probably while unpacking;
  • Detects Sandboxie through the presence of a library;
  • Code injection with CreateRemoteThread in a remote process;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Deletes its original binary from disk;
  • A process attempted to delay the analysis task by a long amount of time.;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • 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
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Clears Windows events or logs;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the victim’s hard drive — so the victim can no longer utilize the data;
  • Preventing regular accessibility to the sufferer’s workstation;
Similar behavior
Related domains Trojan-Ransom.Win32.Blocker.jsij Trojan-Ransom.Win32.Blocker.jsij Trojan-Ransom.Win32.Blocker.jsij Trojan-Ransom.Win32.Blocker.jsij


The most regular networks whereby Win32/Injector.JCH are injected are:

  • By ways of phishing emails;
  • As a repercussion of customer ending up on a source that organizes a harmful software application;

As quickly as the Trojan is effectively injected, it will either cipher the information on the target’s computer or stop the gadget from functioning in a proper manner – while additionally positioning a ransom note that mentions the need for the victims to effect the settlement for the purpose of decrypting the documents or bring back the file system back to the preliminary condition. In the majority of instances, the ransom note will show up when the customer restarts the COMPUTER after the system has currently been damaged.

Win32/Injector.JCH distribution channels.

In various edges of the world, Win32/Injector.JCH grows by leaps and bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom quantity might vary depending on specific neighborhood (regional) setups. The ransom notes and also tricks of obtaining the ransom money amount may vary depending on specific local (local) setups.

Ransomware injection

For example:

    Faulty informs concerning unlicensed software.

    In specific locations, the Trojans commonly wrongfully report having actually spotted some unlicensed applications made it possible for on the victim’s gadget. The alert after that demands the customer to pay the ransom money.

    Faulty statements regarding unlawful content.

    In nations where software application piracy is less popular, this technique is not as efficient for the cyber frauds. Conversely, the Win32/Injector.JCH popup alert may falsely declare to be deriving from a police institution and will report having located youngster porn or various other prohibited data on the tool.

    Win32/Injector.JCH popup alert might wrongly assert to be acquiring from a legislation enforcement institution and will report having situated child porn or other illegal information on the gadget. The alert will in a similar way contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: C8C8C077
md5: ceff74f10db6cceb29cbe7304177fc5c
name: CEFF74F10DB6CCEB29CBE7304177FC5C.mlw
sha1: 7739ae2b55f0e0961dfdc8300f41490c2d846eb1
sha256: a281c5e8a80c91d713b5629ccbef4e0608787a2b347f4f3404b47509c1d8c428
sha512: 264142a6083d998006a3ece4658ccae013b7a133ea54b7e54cc34abad141e211ae5edae653eaf73b4406e8800fa0bf6c549de71de1cd431e9baa95164983af98
ssdeep: 3072:T1PbDXl99fGTfZ8MUuQ+AvpgSlx+dnQhnAPm3vH68cuYaJOIpxuBHy/v1:l1rKGMUuQ+ABg64hanAqloaJOIpxu4t
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Injector.JCH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb BackDoor.IRC.Bot.911
Cynet Malicious (score: 100)
CAT-QuickHeal Worm.Dorkbot.A
ALYac Gen:Variant.Jaik.33413
Cylance Unsafe
Zillya Trojan.Jorik.Win32.17642
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Cybereason malicious.10db6c
Cyren W32/Poebot.A.gen!Eldorado
Symantec W32.IRCBot.NG!gen5
ESET-NOD32 a variant of Win32/Injector.JCH
APEX Malicious
Avast Win32:Ruskill-CX [Trj]
Kaspersky Trojan-Ransom.Win32.Blocker.jsij
BitDefender Gen:Variant.Jaik.33413
NANO-Antivirus Trojan.Win32.Blocker.eihyey
MicroWorld-eScan Gen:Variant.Jaik.33413
Tencent Malware.Win32.Gencirc.10c8ed5f
Ad-Aware Gen:Variant.Jaik.33413
Sophos Mal/Generic-R + Troj/ZXC-S
Comodo TrojWare.Win32.Buzus.jkls@4vq0b7
BitDefenderTheta AI:Packer.4CCB665620
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Sality.dc
Emsisoft Gen:Variant.Jaik.33413 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Blocker.fru
Avira TR/Dropper.VB.Gen
eGambit Unsafe.AI_Score_95%
Antiy-AVL Trojan/Generic.ASMalwS.1037E7
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft VirTool:Win32/Injector.gen!BT
AegisLab Trojan.Win32.Blocker.j!c
GData Gen:Variant.Jaik.33413
TACHYON Trojan/W32.VB-Jorik.241664.D
AhnLab-V3 Trojan/Win32.Jorik.C2488249
Acronis suspicious
McAfee Generic Backdoor.xo
MAX malware (ai score=100)
VBA32 Trojan.IRCbot
Malwarebytes Trojan.Zbot
Panda Trj/Genetic.gen
Rising Trojan.Win32.Generic.12D22C9D (C64:YzY0OtZwYuJxlFJy)
Yandex Trojan.GenAsa!S+rRodOxr1E
Ikarus Trojan.Win32.Jorik
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Dorkbot.BAA!tr
AVG Win32:Ruskill-CX [Trj]

How to remove Win32/Injector.JCH 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/Injector.JCH 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Injector.JCH 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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