What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Trojan:Win32/EmotetCrypt.PEF!MTB infection?

In this article you will locate about the interpretation of Trojan:Win32/EmotetCrypt.PEF!MTB and also its adverse impact on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to require paying the ransom by a target.

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Most of the cases, Trojan:Win32/EmotetCrypt.PEF!MTB ransomware will advise its victims to launch funds transfer for the function of neutralizing the amendments that the Trojan infection has introduced to the victim’s tool.

Trojan:Win32/EmotetCrypt.PEF!MTB 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.
  • Mimics the system’s user agent string for its own requests;
  • Expresses interest in specific running processes;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s hard disk — so the target can no more make use of the data;
  • Preventing regular access to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.


The most normal networks through which Trojan:Win32/EmotetCrypt.PEF!MTB Ransomware are injected are:

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

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the target’s PC or avoid the tool from functioning in an appropriate manner – while likewise placing a ransom money note that discusses the requirement for the targets to effect the settlement for the objective of decrypting the records or bring back the documents system back to the first problem. In many circumstances, the ransom money note will show up when the customer reboots the COMPUTER after the system has actually currently been damaged.

Trojan:Win32/EmotetCrypt.PEF!MTB distribution networks.

In various edges of the globe, Trojan:Win32/EmotetCrypt.PEF!MTB expands by jumps and also bounds. Nonetheless, the ransom money notes and also techniques of extorting the ransom money amount might vary depending upon certain neighborhood (local) setups. The ransom money notes and techniques of extorting the ransom money amount may vary depending on certain regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software application.

    In particular locations, the Trojans often wrongfully report having actually spotted some unlicensed applications enabled on the victim’s tool. The sharp after that requires the user to pay the ransom money.

    Faulty statements regarding unlawful content.

    In countries where software application piracy is less preferred, this approach is not as effective for the cyber frauds. Alternatively, the Trojan:Win32/EmotetCrypt.PEF!MTB popup alert may incorrectly declare to be originating from a police institution and also will certainly report having situated child porn or other unlawful information on the device.

    Trojan:Win32/EmotetCrypt.PEF!MTB popup alert might wrongly declare to be deriving from a legislation enforcement establishment and will certainly report having situated kid porn or other prohibited information on the device. The alert will likewise consist of a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 6E846723
md5: d410e85ccdc3ba2c590c23db90c3fa77
name: upload_file
sha1: 182ed2588cca862f66231804965b42579f093336
sha256: 96f2e7e79f84005be05ec707fe5abda1eaaabc4feb2898b52f17304dcbe58388
sha512: 970a4e7cd40e5c1ed917dc60b68a410ec133b8f7c29bea80e5bb13418610b215603b973b33d571cbf731ed68914dea7703144a4823f4d0b6efd9bae7fc41a2ea
ssdeep: 12288:COESzYid9F98cmacsitPbD5bZy6a2jWmC3VTg1u:c8fuvfup2eg
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2005
InternalName: MultiSubButton
FileVersion: 1, 0, 0, 1
ProductName: MultiSubButton Application
ProductVersion: 1, 0, 0, 1
FileDescription: MultiSubButton MFC Application
OriginalFilename: MultiSubButton.EXE
Translation: 0x0409 0x04b0

Trojan:Win32/EmotetCrypt.PEF!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware2
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.Agent.EXRZ
CAT-QuickHeal TrojanBanker.Emotet
McAfee Emotet-FSF!D410E85CCDC3
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Trojan ( 005711e81 )
BitDefender Trojan.Agent.EXRZ
K7GW Trojan ( 005711e81 )
Invincea Mal/Generic-R + Troj/Emotet-CQV
Cyren W32/Emotet.AUT.gen!Eldorado
Symantec Packed.Generic.554
APEX Malicious
ClamAV Win.Malware.Generic-9778219-0
Kaspersky HEUR:Trojan.Win32.Zenpak.pef
Alibaba Trojan:Win32/EmotetCrypt.c286940c
NANO-Antivirus Trojan.Win32.Emotet.hzppss
ViRobot Trojan.Win32.Z.Emotet.441856.EN
Rising Trojan.Kryptik!1.CD62 (CLASSIC)
Ad-Aware Trojan.Agent.EXRZ
TACHYON Banker/W32.Emotet.441856
Sophos Troj/Emotet-CQV
Comodo Malware@#3nvkk9fpa9dno
F-Secure Trojan.TR/AD.Emotet.hifsu
DrWeb Trojan.DownLoader35.1289
Zillya Trojan.Emotet.Win32.43811
TrendMicro Trojan.Win32.WACATAC.THJBOBO
Emsisoft Trojan.Emotet (A)
Jiangmin Trojan.Banker.Emotet.oxp
Avira TR/AD.Emotet.hifsu
Antiy-AVL Trojan/Win32.Kryptik
Microsoft Trojan:Win32/EmotetCrypt.PEF!MTB
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Agent.EXRZ
AegisLab Trojan.Win32.Zenpak.4!c
ZoneAlarm HEUR:Trojan.Win32.Zenpak.pef
GData Trojan.Agent.EXRZ
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Emotet.R353278
Acronis suspicious
VBA32 BScope.Trojan.Downloader
ALYac Trojan.Agent.Emotet
MAX malware (ai score=89)
Malwarebytes Trojan.MalPack.TRE
Panda Trj/Emotet.C
ESET-NOD32 a variant of Win32/Kryptik.HGUC
TrendMicro-HouseCall TrojanSpy.Win32.EMOTET.SMU.hp
Tencent Malware.Win32.Gencirc.10ce0a94
Yandex Trojan.Kryptik!4YE+zhozVJQ
SentinelOne DFI – Suspicious PE
Fortinet W32/BankerX.5CC7!tr
BitDefenderTheta Gen:NN.ZexaF.34590.Au0@aWoqENki
AVG Win32:BankerX-gen [Trj]
Avast Win32:BankerX-gen [Trj]
CrowdStrike win/malicious_confidence_60% (W)
Qihoo-360 Win32/Trojan.ffa

How to remove Trojan:Win32/EmotetCrypt.PEF!MTB virus?

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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Trojan:Win32/EmotetCrypt.PEF!MTB 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 Trojan:Win32/EmotetCrypt.PEF!MTB 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

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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