TrojanDownloader:Win32/GuloaderCrypt.MK!MTB

What is TrojanDownloader:Win32/GuloaderCrypt.MK!MTB infection?

In this short article you will locate concerning the interpretation of TrojanDownloader:Win32/GuloaderCrypt.MK!MTB and also its negative influence on your computer system. Such ransomware are a form of malware that is specified by online frauds to require paying the ransom by a victim.

In the majority of the situations, TrojanDownloader:Win32/GuloaderCrypt.MK!MTB ransomware will certainly instruct its targets to start funds transfer for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s gadget.

TrojanDownloader:Win32/GuloaderCrypt.MK!MTB Summary

These alterations can be as adheres to:

  • 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.
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the target’s hard drive — so the target can no longer utilize the information;
  • Preventing regular 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.
Similar behavior
Related domains
z.whorecord.xyz Ransom.Wannacry
a.tomx.xyz Ransom.Wannacry

TrojanDownloader:Win32/GuloaderCrypt.MK!MTB

One of the most normal channels where TrojanDownloader:Win32/GuloaderCrypt.MK!MTB Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of customer winding up on a resource that holds a malicious software;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or prevent the tool from working in an appropriate way – while also placing a ransom money note that discusses the need for the sufferers to effect the repayment for the function of decrypting the documents or restoring the documents system back to the first condition. In a lot of instances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has actually already been damaged.

TrojanDownloader:Win32/GuloaderCrypt.MK!MTB circulation networks.

In various corners of the world, TrojanDownloader:Win32/GuloaderCrypt.MK!MTB grows by leaps and also bounds. Nevertheless, the ransom notes and techniques of obtaining the ransom quantity may differ depending on certain neighborhood (regional) setups. The ransom notes and also methods of extorting the ransom money quantity may vary depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software program.

    In certain areas, the Trojans often wrongfully report having discovered some unlicensed applications enabled on the sufferer’s tool. The alert after that requires the user to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In countries where software program piracy is much less popular, this method is not as effective for the cyber scams. Conversely, the TrojanDownloader:Win32/GuloaderCrypt.MK!MTB popup alert may incorrectly claim to be deriving from a police establishment and will report having located kid porn or various other unlawful information on the gadget.

    TrojanDownloader:Win32/GuloaderCrypt.MK!MTB popup alert may wrongly declare to be acquiring from a law enforcement institution and will report having situated child pornography or various other unlawful information on the tool. The alert will likewise have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 67C76142md5: 264052f0b3506bcc522bb7d3e1221617name: 264052F0B3506BCC522BB7D3E1221617.mlwsha1: 32b39e165fe9e7c1a2d008fffbee1c22156d8292sha256: d257354ce73f4e36a91196e7bd60dc27e9307027dd44886b1114632ae51a4a0bsha512: 982c6d3db5881d3661c41dfdb2a0a223ad27c4b87a2fe5517d1f7fd8ac4dae00a7957f446bae9f5c558590b763eaeb1cd7918eeb239c1225c9f49c9df3714a0bssdeep: 768:4lXW4AL9iJqKsDjPaFCPccp/mZDtht9MCbwgnLkyfeGMD:8m1+qjPaFCkcp/IDtVLbnIyPMDtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0InternalName: FORMKAGERSFileVersion: 2.04CompanyName: AXE Pro 2018Comments: AXE Pro 2018ProductName: AXE ProProductVersion: 2.04FileDescription: AXE ProOriginalFilename: FORMKAGERS.exe

TrojanDownloader:Win32/GuloaderCrypt.MK!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PackedENT.197
MicroWorld-eScan Trojan.GenericKD.35727712
FireEye Trojan.GenericKD.35727712
CAT-QuickHeal Trojan.IGENERIC
McAfee PWS-FCUB!264052F0B350
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
AegisLab Trojan.Win32.Vebzenpak.4!c
Sangfor Malware
K7AntiVirus Trojan ( 00574b4f1 )
BitDefender Trojan.GenericKD.35727712
K7GW Trojan ( 00574b4f1 )
BitDefenderTheta Gen:NN.ZevbaCO.34700.em0@aeCZCsni
Cyren W32/Kryptik.CSH.gen!Eldorado
Symantec Ransom.Wannacry
TrendMicro-HouseCall TrojanSpy.Win32.CRYPTINJECT.USMANLF20
Avast Win32:Trojan-gen
ClamAV Win.Trojan.VBGeneric-9810654-0
Kaspersky Trojan.Win32.Vebzenpak.acsd
Alibaba TrojanDownloader:Win32/Vebzenpak.f12722c4
ViRobot Trojan.Win32.Z.Agent.69632.FWC
Rising Trojan.Injector!8.C4 (TFE:5:SxAW5gTyrtL)
Ad-Aware Trojan.GenericKD.35727712
Sophos Mal/Generic-S
Comodo Malware@#1tm3b5ugp6zkj
F-Secure Trojan.TR/AD.VBCryptor.knzhp
TrendMicro TrojanSpy.Win32.CRYPTINJECT.USMANLF20
McAfee-GW-Edition PWS-FCUB!264052F0B350
Emsisoft Trojan.GenericKD.35727712 (B)
Avira TR/AD.VBCryptor.knzhp
Kingsoft Win32.Troj.Vebzenpak.ac.(kcloud)
Microsoft TrojanDownloader:Win32/GuloaderCrypt.MK!MTB
Gridinsoft Trojan.Win32.Downloader.oa
Arcabit Trojan.Generic.D2212960
ZoneAlarm Trojan.Win32.Vebzenpak.acsd
GData Trojan.GenericKD.35727712
Cynet Malicious (score: 100)
AhnLab-V3 Malware/Win32.RL_Generic.R358521
ALYac Trojan.Agent.GuLoader
MAX malware (ai score=80)
Malwarebytes Trojan.GuLoader
Panda Trj/GdSda.A
APEX Malicious
ESET-NOD32 a variant of Win32/Injector.EODG
Yandex Trojan.Injector!EXcjaMImJuQ
Ikarus Trojan.VB.Crypt
Fortinet W32/EOCU!tr
AVG Win32:Trojan-gen
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Trojan.d38

How to remove TrojanDownloader:Win32/GuloaderCrypt.MK!MTB 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove TrojanDownloader:Win32/GuloaderCrypt.MK!MTB you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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