Written by Robert Bailey

What is Trojan:Win32/Zenpack.MU!MTB infection?

In this short article you will discover regarding the definition of Trojan:Win32/Zenpack.MU!MTB and also its unfavorable impact on your computer. Such ransomware are a type of malware that is specified by on the internet scams to require paying the ransom money by a target.

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Most of the cases, Trojan:Win32/Zenpack.MU!MTB ransomware will instruct its targets to launch funds move for the purpose of neutralizing the changes that the Trojan infection has actually presented to the victim’s tool.

Trojan:Win32/Zenpack.MU!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.
  • Possible date expiration check, exits too soon after checking local time;
  • Expresses interest in specific running processes;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • The executable is compressed using UPX;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents situated on the sufferer’s disk drive — so the sufferer can no more make use of the data;
  • Preventing normal 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.


The most typical networks where Trojan:Win32/Zenpack.MU!MTB Ransomware are infused are:

  • By means of phishing emails;
  • As a consequence of individual winding up on a resource that hosts a destructive software application;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s computer or avoid the device from functioning in a proper manner – while additionally placing a ransom money note that discusses the requirement for the targets to effect the settlement for the objective of decrypting the records or recovering the data system back to the first problem. In the majority of instances, the ransom note will come up when the client reboots the PC after the system has actually already been damaged.

Trojan:Win32/Zenpack.MU!MTB distribution networks.

In different corners of the world, Trojan:Win32/Zenpack.MU!MTB expands by jumps and bounds. Nevertheless, the ransom notes and methods of extorting the ransom money quantity may differ depending upon certain regional (local) settings. The ransom notes as well as techniques of obtaining the ransom money quantity might differ depending on specific neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software program.

    In specific areas, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the victim’s tool. The sharp after that requires the individual to pay the ransom.

    Faulty declarations concerning illegal web content.

    In nations where software application piracy is much less prominent, this method is not as efficient for the cyber fraudulences. Alternatively, the Trojan:Win32/Zenpack.MU!MTB popup alert might falsely declare to be originating from a police establishment and also will report having situated kid pornography or various other illegal data on the tool.

    Trojan:Win32/Zenpack.MU!MTB popup alert might falsely assert to be obtaining from a regulation enforcement institution as well as will report having situated kid pornography or other prohibited information on the gadget. The alert will similarly consist of a requirement for the individual to pay the ransom.

Technical details

File Info:

crc32: 0801EE88
md5: 1e241b1dd5c430630ac697747bd69b6d
name: 1E241B1DD5C430630AC697747BD69B6D.mlw
sha1: 6b45cf4ebe9cd156d6fdec5f99be8ce5e0185ae2
sha256: 9dbd1a1e4c810a71d1b2b815292751d373dc5df2925d9ce397663ff591beb0b1
sha512: 1dd85a54f28c57c99e5de693575f64ae59030cb7304072d08d2ca697a343760eee59937b14b50338a47681d3b0dc55fc7bd2c14666665a57dc03ff1b02a8efc8
ssdeep: 98304:ZEQFNWKwt1JvPd2zP6ecZrbVYNObGKl9qWVrLt+suTWOO9EVmheS7MyIZmaaQMZ:+oWXJlxpJyr3qtqY9aZjSnXymu7AaXu
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

InternalSurname: debaukd.ekze
Prod: 1.2.7
LegalCo: Copyri (C) 2019, permudationzi

Trojan:Win32/Zenpack.MU!MTB also known as:

GridinSoft Trojan.Ransom.Gen
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.35940088
McAfee Artemis!1E241B1DD5C4
Cylance Unsafe
AegisLab Trojan.Win32.Malicious.4!c
Sangfor Malware
K7AntiVirus Trojan ( 005756a31 )
BitDefender Trojan.GenericKD.35940088
K7GW Trojan ( 005756a31 )
Cybereason malicious.ebe9cd
Cyren W32/Trojan.SDHB-4055
Symantec ML.Attribute.HighConfidence
TrendMicro-HouseCall TrojanSpy.Win32.ARTEMIS.USMANLT20
Kaspersky Trojan.Win32.AntiAV.czkd
Alibaba Trojan:Win32/AntiAV.9ef9687e
ViRobot Trojan.Win32.Z.Kryptik.4398592
Rising Backdoor.Agent!8.C5D (TFE:5:IhzqwXEXQUL)
Ad-Aware Trojan.GenericKD.35940088
Emsisoft Trojan.Crypt (A)
Comodo Malware@#24ktag7lz0oiq
F-Secure Trojan.TR/AD.GoCloudnet.xzchm
DrWeb Trojan.Siggen11.56879
TrendMicro TrojanSpy.Win32.ARTEMIS.USMANLT20
McAfee-GW-Edition BehavesLike.Win32.Generic.rc
Sophos Mal/Generic-S
eGambit Unsafe.AI_Score_77%
Avira TR/AD.GoCloudnet.xzchm
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Zenpack.MU!MTB
Gridinsoft Ransom.Win32.Wacatac.oa
Arcabit Trojan.Generic.D22466F8
ZoneAlarm Trojan.Win32.AntiAV.czkd
GData Trojan.GenericKD.35940088
Cynet Malicious (score: 100)
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34700.@pGfaCNbEHo
ALYac Trojan.GenericKD.35940088
MAX malware (ai score=89)
VBA32 Trojan.Zenpak
Malwarebytes Trojan.MalPack.GS
Panda Trj/RnkBend.A
APEX Malicious
ESET-NOD32 a variant of Win32/Kryptik.HILV
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.GWQD!tr
Webroot W32.Trojan.Gen
AVG FileRepMalware
Avast Win32:TrojanX-gen [Trj]
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Trojan.Anti.8d6

How to remove Trojan:Win32/Zenpack.MU!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

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/Zenpack.MU!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/Zenpack.MU!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

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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