Written by Robert Bailey

What is Trojan.MBRLock infection?

In this short article you will certainly discover regarding the interpretation of Trojan.MBRLock as well as its adverse impact on your computer. Such ransomware are a form of malware that is specified by on the internet fraudulences to require paying the ransom money by a victim.

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In the majority of the instances, Trojan.MBRLock ransomware will certainly instruct its sufferers to initiate funds move for the purpose of neutralizing the changes that the Trojan infection has introduced to the victim’s device.

Trojan.MBRLock Summary

These alterations can be as complies with:

  • 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.
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Likely installs a bootkit via raw harddisk modifications;
  • 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 documents found on the target’s hard disk drive — so the sufferer can no more make use of the data;
  • 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.


The most normal channels where Trojan.MBRLock Trojans are infused are:

  • By means of phishing e-mails;
  • As a consequence of individual winding up on a source that holds a malicious software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s PC or protect against the gadget from working in a correct manner – while likewise putting a ransom note that mentions the requirement for the victims to impact the settlement for the objective of decrypting the files or recovering the documents system back to the first condition. In a lot of instances, the ransom money note will certainly come up when the client restarts the PC after the system has currently been damaged.

Trojan.MBRLock circulation networks.

In different corners of the globe, Trojan.MBRLock grows by jumps and bounds. However, the ransom notes and also techniques of extorting the ransom money amount may differ depending on specific neighborhood (regional) setups. The ransom money notes and also techniques of extorting the ransom money amount may vary depending on specific regional (local) setups.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations about unlawful material.

    In nations where software program piracy is much less popular, this technique is not as effective for the cyber frauds. Alternatively, the Trojan.MBRLock popup alert might wrongly declare to be stemming from a law enforcement organization and also will report having situated child porn or various other unlawful information on the device.

    Trojan.MBRLock popup alert may wrongly assert 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 consist of a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 7279A00F
md5: db169bde85ac40e6dcf4518eba23f0f1
name: upload_file
sha1: a1d18bed249c5a66a92f5437293fb873172456ca
sha256: d40b1bfac0717d700a2a2dfae70e335827d022fb0f61043d9f565fb71f04df1e
sha512: 50428c06ca9cfc0b2f705da52f4cc71188b45d377311ce145cbc31a80129ab67c85edf549017e3e8362024fc380d6415dce61588f377fb49cbab40b2927d6383
ssdeep: 24576:gJ0sl0pLkTe37Kiug3CKw1HqOY8fWqHW23Dp75Ht3NYLRRy5YkeD++7yw:gMthbSvt7pWqHW2TLt3ORGPe1h
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: x4f5cx8005x7248x6743x6240x6709 x8bf7x5c0ax91cdx5e76x4f7fx7528x6b63x7248
Comments: x672cx7a0bx5e8fx4f7fx7528x6613x8bedx8a00x7f16x5199(
ProductName: x6613x8bedx8a00x7a0bx5e8f
FileDescription: x9189x68a6
Translation: 0x0804 0x04b0

Trojan.MBRLock also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetectVM.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Trojan.GenericKD.43955736
CAT-QuickHeal Trojan.DiskWriter
McAfee GenericRXAA-AA!DB169BDE85AC
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Malware
K7AntiVirus Trojan ( 005239691 )
BitDefender Trojan.GenericKD.43955736
K7GW Trojan ( 004b8a501 )
Cybereason malicious.d249c5
TrendMicro Trojan.Win32.WACATAC.USMANJ220
Cyren W32/S-e743b39f!Eldorado
Symantec ML.Attribute.HighConfidence
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan.Win32.DiskWriter.euf
Alibaba Trojan:Win32/DiskWriter.ceffe62f
NANO-Antivirus Trojan.Win32.DiskWriter.hynizq
Tencent Win32.Trojan.Diskwriter.Wqwk
Ad-Aware Trojan.GenericKD.43955736
Emsisoft Trojan.GenericKD.43955736 (B)
F-Secure Heuristic.HEUR/AGEN.1138441
DrWeb Trojan.Siggen10.32538
Zillya Trojan.MBRlock.Win32.700
Invincea Mal/Generic-S
Sophos Mal/Generic-S
Ikarus PUA.NoobyProtect
Jiangmin Trojan/Generic.aptoz
Avira HEUR/AGEN.1138441
MAX malware (ai score=99)
Microsoft PUA:Win32/Vigua.A
Arcabit Trojan.Generic.D29EB618
ZoneAlarm Trojan.Win32.DiskWriter.euf
GData Win32.Application.PUPStudio.A
Cynet Malicious (score: 100)
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34298.vv0@aq@I5whb
ALYac Trojan.Ransom.MBRlock
VBA32 TScope.Malware-Cryptor.SB
Malwarebytes Trojan.MBRLock
Panda Trj/CI.A
ESET-NOD32 Win32/MBRlock.BA
TrendMicro-HouseCall Trojan.Win32.WACATAC.USMANJ220
Rising Trojan.Generic@ML.100 (RDML:ay12JYm/ayJhKjzLuREi9Q)
Yandex Trojan.DiskWriter!
SentinelOne DFI – Malicious PE
eGambit Unsafe.AI_Score_100%
Fortinet Riskware/MBRlock
AVG Win32:Malware-gen
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Generic/Trojan.96f

How to remove Trojan.MBRLock virus?

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.MBRLock 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.MBRLock 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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