Win32/Kryptik.EMNJ

What is Win32/Kryptik.EMNJ infection?

In this short article you will find regarding the definition of Win32/Kryptik.EMNJ and its adverse effect on your computer. Such ransomware are a form of malware that is clarified by online fraudulences to demand paying the ransom money by a target.

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In the majority of the situations, Win32/Kryptik.EMNJ infection will advise its victims to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has presented to the target’s gadget.

Win32/Kryptik.EMNJ 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.
  • 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.
  • Possible date expiration check, exits too soon after checking local time;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • A process created a hidden window;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • 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;
  • Creates a copy of itself;
  • Exhibits behavior characteristic of Proxyback malware;
  • Attempts to create or modify system certificates;
  • Ciphering the documents situated on the victim’s hard disk — so the sufferer can no more make use of the information;
  • Preventing normal access 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.

Win32/Kryptik.EMNJ

The most common channels through which Win32/Kryptik.EMNJ Trojans are injected are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of customer winding up on a source that hosts a destructive software application;

As quickly as the Trojan is effectively injected, it will certainly either cipher the information on the target’s computer or protect against the gadget from working in a correct fashion – while likewise placing a ransom note that states the demand for the sufferers to effect the settlement for the purpose of decrypting the files or bring back the documents system back to the first problem. In most circumstances, the ransom note will certainly come up when the client restarts the COMPUTER after the system has currently been harmed.

Win32/Kryptik.EMNJ distribution channels.

In different edges of the globe, Win32/Kryptik.EMNJ grows by leaps and also bounds. However, the ransom notes as well as methods of extorting the ransom money amount might vary depending on particular neighborhood (local) settings. The ransom notes as well as methods of obtaining the ransom amount may vary depending on specific neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software program.

    In specific locations, the Trojans often wrongfully report having actually discovered some unlicensed applications allowed on the victim’s device. The alert then requires the individual to pay the ransom money.

    Faulty statements regarding illegal material.

    In countries where software application piracy is less preferred, this technique is not as reliable for the cyber scams. Alternatively, the Win32/Kryptik.EMNJ popup alert might falsely claim to be deriving from a law enforcement institution as well as will certainly report having located youngster porn or other prohibited information on the device.

    Win32/Kryptik.EMNJ popup alert may incorrectly claim to be acquiring from a legislation enforcement organization and will certainly report having located child pornography or other illegal data on the tool. The alert will in a similar way consist of a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 8972DEBC
md5: e352eac361a207b776be77915fedefe0
name: E352EAC361A207B776BE77915FEDEFE0.mlw
sha1: 50b0c8ab51a80738f933012f0fff318f3599c567
sha256: 74fd7836d4e5d587f3302230ab724c031e00747a782a3c8562c5892e74a278bf
sha512: 4d82975e156e2e74a3f511e2a8bad65c0a38f7435e86fa5792c1b9ea76917e2ca30c73a2f72bd863a658b65e93d12629b42c3d5b0c7cd63382a9439e859da64d
ssdeep: 6144:6fNGYPigSGw+l6mOtAORYVaP28ekwBFsv4NGYPigN:6fxPigSDrtwmEF24xPigN
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.EMNJ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.FamVT.RazyNHmC.Trojan
K7AntiVirus Trojan ( 004dd3cf1 )
Elastic malicious (high confidence)
DrWeb Trojan.Packed.29794
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Crowti.WR7
ALYac Gen:Variant.Ransom.426
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
K7GW Trojan ( 004dd3cf1 )
Cybereason malicious.361a20
Baidu Win32.Trojan.Kryptik.alx
Cyren W32/Agent.XL.gen!Eldorado
Symantec Trojan.Gen.2
ESET-NOD32 a variant of Win32/Kryptik.EMNJ
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.Win32.Generic.Cds.a
BitDefender Gen:Variant.Ransom.426
NANO-Antivirus Trojan.Win32.MlwGen.eaaclg
ViRobot Trojan.Win32.U.Agent.374784
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
MicroWorld-eScan Gen:Variant.Ransom.426
Tencent Win32.Trojan.Generic.Aihm
Ad-Aware Gen:Variant.Ransom.426
Sophos Mal/Generic-R + Mal/Wonton-CB
Comodo TrojWare.Win32.Wonton.JNE@6ay5pq
BitDefenderTheta Gen:NN.ZexaF.34670.tGZ@aS2zgQb
VIPRE Trojan.Win32.Kryptik.emnj (v)
McAfee-GW-Edition BehavesLike.Win32.Generic.fh
FireEye Generic.mg.e352eac361a207b7
Emsisoft Gen:Variant.Ransom.426 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Bitman.ex
Webroot Trojan.Dropper.Gen
Avira HEUR/AGEN.1106145
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:Win32/Htbot.C
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Ransom.426
AhnLab-V3 Trojan/Win32.Teslacrypt.R173972
Acronis suspicious
McAfee Ransomware-FJU!E352EAC361A2
MAX malware (ai score=100)
VBA32 Malware-Cryptor.Limpopo
Malwarebytes Ransom.TeslaCrypt
Panda Trj/GdSda.A
Rising Ransom.Tescrypt!8.3AF (CLOUD)
Yandex Trojan.GenAsa!jHJ9vAGva2g
Ikarus Trojan.Win32.Crypt
Fortinet W32/TeslaCrypt.I!tr
AVG Win32:Trojan-gen
Paloalto generic.ml

How to remove Win32/Kryptik.EMNJ 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 Win32/Kryptik.EMNJ 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 Win32/Kryptik.EMNJ 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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