Written by Robert Bailey

What is Win32/Injector.EFKH infection?

In this post you will discover concerning the meaning of Win32/Injector.EFKH and its adverse effect on your computer system. Such ransomware are a form of malware that is elaborated by on the internet fraudulences to demand paying the ransom money by a target.

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In the majority of the cases, Win32/Injector.EFKH ransomware will certainly advise its sufferers to start funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually presented to the sufferer’s device.

Win32/Injector.EFKH Summary

These modifications can be as complies with:

  • Executable code extraction;
  • Creates RWX memory;
  • Reads data out of its own binary image;
  • Installs itself for autorun at Windows startup;
  • Network activity detected but not expressed in API logs;
  • Anomalous binary characteristics;
  • Ciphering the records located on the sufferer’s hard drive — so the victim can no more utilize the information;
  • Preventing normal access to the victim’s workstation;


The most common channels whereby Win32/Injector.EFKH Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a resource that organizes a malicious software application;

As soon as the Trojan is successfully injected, it will either cipher the information on the target’s computer or protect against the gadget from operating in a correct way – while additionally positioning a ransom note that discusses the need for the sufferers to impact the repayment for the function of decrypting the records or recovering the documents system back to the initial condition. In many instances, the ransom money note will certainly turn up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Win32/Injector.EFKH circulation networks.

In numerous corners of the globe, Win32/Injector.EFKH grows by leaps as well as bounds. Nevertheless, the ransom money notes as well as methods of obtaining the ransom amount might differ relying on particular regional (local) setups. The ransom money notes and techniques of extorting the ransom money quantity might differ depending on particular regional (regional) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

    In certain areas, the Trojans usually wrongfully report having actually detected some unlicensed applications made it possible for on the target’s gadget. The alert after that requires the individual to pay the ransom money.

    Faulty statements regarding prohibited content.

    In countries where software piracy is less popular, this approach is not as effective for the cyber fraudulences. Additionally, the Win32/Injector.EFKH popup alert might wrongly claim to be deriving from a law enforcement organization and will certainly report having located child pornography or various other unlawful information on the gadget.

    Win32/Injector.EFKH popup alert might falsely claim to be acquiring from a legislation enforcement institution and will certainly report having located kid pornography or various other unlawful information on the device. The alert will in a similar way include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 1FA4D52D
md5: 3057cac3daaea2fed79e32290b29018c
name: 3057CAC3DAAEA2FED79E32290B29018C.mlw
sha1: c86a1def5eff362453f6549a3571912b8b30e9ac
sha256: 7a3fda36d742c10151cb299e5901211c0b897a59fc7794d8c42ee8b21ffdd07c
sha512: 933bfd4a62670cea22ec934463d53aaea893c0ee10dae38e1039c8d164c377b8ca6eb56d18672c7577d4b7180fcf9449349f444902522d9656eafc95d28ddf08
ssdeep: 6144:S5DfLJNewrt9NRd48FEi5nyZVJiS0zoZZMkY0Qp5QDIluc6T+LBRCTAXHsoA:gfLJN1q8FEiZqVJijzRRH5HlucpAccoA
type: PE32 executable (GUI) Intel 80386, for MS Windows, Nullsoft Installer self-extracting archive

Version Info:

0: [No Data]

Win32/Injector.EFKH also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0054e1071 )
Lionic Trojan.Multi.Generic.4!c
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop9.10450
Cynet Malicious (score: 99)
ALYac Trojan.GenericKD.31975864
Cylance Unsafe
Zillya Trojan.Tepfer.Win32.93332
Sangfor Trojan.Win32.Tepfer.gen
CrowdStrike win/malicious_confidence_100% (W)
Alibaba TrojanPSW:Win32/Tepfer.389a422f
K7GW Trojan ( 0054e1071 )
Cybereason malicious.3daaea
Cyren W32/Injector.JKKD-3152
Symantec Trojan.Gen.MBT
ESET-NOD32 a variant of Win32/Injector.EFKH
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky UDS:DangerousObject.Multi.Generic
BitDefender Trojan.GenericKD.31975864
NANO-Antivirus Trojan.Win32.Tepfer.fsgoog
MicroWorld-eScan Trojan.GenericKD.31975864
Tencent Win32.Trojan.Makoob.Lgtj
Ad-Aware Trojan.GenericKD.31975864
Sophos Mal/Generic-S
Comodo Malware@#1c7pqgmzn4t3q
BitDefenderTheta Gen:NN.ZedlaF.34236.cu8@aqjYPlgi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANCRAB.SMD.hp
McAfee-GW-Edition BehavesLike.Win32.Ransom.fc
Emsisoft Trojan.GenericKD.31975864 (B)
Avira HEUR/AGEN.1116891
Antiy-AVL Trojan/Generic.ASMalwS.33D580C
Microsoft Trojan:Win32/Occamy.C7A
GData Trojan.GenericKD.31975864
AhnLab-V3 Malware/Win32.Generic.C3246555
McAfee Artemis!3057CAC3DAAE
VBA32 TrojanPSW.Tepfer
Panda Trj/CI.A
TrendMicro-HouseCall Ransom.Win32.GANCRAB.SMD.hp
Rising Trojan.Loader!1.B8C9 (CLASSIC)
Yandex Trojan.Injector!KDgjFbsJplA
MaxSecure Trojan.Malware.6071356.susgen
Fortinet W32/Injector.EGNH!tr
AVG Win32:Trojan-gen

How to remove Win32/Injector.EFKH 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 Win32/Injector.EFKH 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 Win32/Injector.EFKH 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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