HackTool:Win32/Bootlock.A

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

What is HackTool:Win32/Bootlock.A infection?

In this article you will certainly locate concerning the definition of HackTool:Win32/Bootlock.A as well as its adverse impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to require paying the ransom by a target.

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Most of the situations, HackTool:Win32/Bootlock.A ransomware will instruct its targets to launch funds transfer for the objective of counteracting the changes that the Trojan infection has introduced to the target’s tool.

HackTool:Win32/Bootlock.A Summary

These alterations can be as complies with:

  • 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: Russian;
  • Unconventionial language used in binary resources: Russian;
  • 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;
  • 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 papers situated on the sufferer’s disk drive — so the target can no more use the information;
  • Preventing routine access to the sufferer’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Win.Trojan.Ransom-43
a.tomx.xyz Win.Trojan.Ransom-43

HackTool:Win32/Bootlock.A

One of the most common networks whereby HackTool:Win32/Bootlock.A Trojans are infused are:

  • By methods of phishing emails;
  • As a repercussion of customer winding up on a resource that organizes a malicious software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the target’s computer or stop the device from working in a correct way – while likewise putting a ransom note that discusses the requirement for the targets to impact the repayment for the objective of decrypting the papers or recovering the data system back to the initial condition. In most circumstances, the ransom money note will come up when the customer reboots the PC after the system has actually currently been harmed.

HackTool:Win32/Bootlock.A circulation networks.

In various corners of the world, HackTool:Win32/Bootlock.A expands by jumps as well as bounds. Nonetheless, the ransom money notes as well as techniques of obtaining the ransom quantity might vary depending upon particular regional (regional) setups. The ransom notes and also tricks of obtaining the ransom amount might differ depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software program.

    In certain areas, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom.

    Faulty statements about prohibited content.

    In countries where software program piracy is less preferred, this method is not as reliable for the cyber frauds. Additionally, the HackTool:Win32/Bootlock.A popup alert may incorrectly declare to be deriving from a police establishment as well as will certainly report having situated kid porn or other unlawful information on the device.

    HackTool:Win32/Bootlock.A popup alert might incorrectly declare to be acquiring from a legislation enforcement organization and also will report having located child pornography or various other illegal information on the device. The alert will likewise have a need for the user to pay the ransom.

Technical details

File Info:

crc32: D05EC0F6
md5: c8f5f007e75f79d7289568406b450a21
name: C8F5F007E75F79D7289568406B450A21.mlw
sha1: 424232cd270b7e7d255d440d25188097b9f0e465
sha256: be0830713d84ebe82e0fd2a9380d4e4fba59b547691a14069ea024c8562396d4
sha512: 4de27d38bfcdfda879d81703d44a02d3699ce28d924ea509cabb106df9cdd03365f7386afcfdce5a8915555e733579221c152091802061c44c1a920f40873b73
ssdeep: 3072:9PdEbA9i6ZUVXMdvx4JVAKvj62QvOOi2RW8F1CaDNmS4dZbAX/qcNOG+xD9VtxZ:VdE89ZU+dvIfXI3XCaDWZbA0Frt
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

LegalCopyright: Copyrights damned!
InternalName:
FileVersion: 0.2.0.0
CompanyName: VaZoNeZ Corp.
LegalTrademarks:
ProductName: [MBRLocker Builder]
ProductVersion: 0.2.0.0
FileDescription: [MBRLocker Builder]
OriginalFilename:
Translation: 0x0419 0x04e3

HackTool:Win32/Bootlock.A also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.Generic.KDV.298598
McAfee GenericRXAA-FA!C8F5F007E75F
Cylance Unsafe
Zillya Trojan.MBRlock.Win32.24
AegisLab Hacktool.Win32.Mblocker.toOL
Sangfor Trojan.Win32.Generic.K
K7AntiVirus Riskware ( 0040eff71 )
BitDefender Trojan.Generic.KDV.298598
K7GW Riskware ( 0040eff71 )
Cybereason malicious.7e75f7
Arcabit Trojan.Generic.KDV.D48E66
Symantec ML.Attribute.HighConfidence
APEX Malicious
ClamAV Win.Trojan.Ransom-43
Kaspersky Constructor.Win32.MBRLocker.a
Alibaba HackTool:Win32/MBRLocker.33691079
NANO-Antivirus Riskware.Win32.Mblocker.cyycqq
Rising Trojan.MBRlock!1.66BD (CLOUD)
Ad-Aware Trojan.Generic.KDV.298598
Sophos Generic PUA EC (PUA)
Comodo ApplicUnsaf@#23aopcy273o7j
F-Secure Malware.BOO/Ransom.AB
DrWeb MBRlock.Generator.1
VIPRE Trojan.Win32.Generic!BT
TrendMicro HKTL_MBLOCKER
McAfee-GW-Edition BehavesLike.Win32.Trojan.cc
MaxSecure Trojan.Malware.121218.susgen
FireEye Trojan.Generic.KDV.298598
Emsisoft Trojan.Generic.KDV.298598 (B)
Jiangmin Constructor.Mblocker.a
Webroot W32.Malware.Gen
Avira BOO/Ransom.AB
MAX malware (ai score=100)
Antiy-AVL HackTool[Constructor]/Win32.Mblocker
Kingsoft Win32.Troj.Generic.(kcloud)
Microsoft HackTool:Win32/Bootlock.A
ViRobot Trojan.Win32.Generic.197120.B
ZoneAlarm Constructor.Win32.MBRLocker.a
GData Trojan.Generic.KDV.298598
Cynet Malicious (score: 85)
ALYac Trojan.Generic.KDV.298598
VBA32 Trojan.Ransom.5705
Malwarebytes Trojan.MBRLock
Panda Generic Malware
ESET-NOD32 a variant of Win32/MBRlock.R
TrendMicro-HouseCall HKTL_MBLOCKER
Tencent Win32.Trojan.Ransom.Tccb
Yandex Constructor.Mblocker!VGERIVmxNOg
Ikarus Trojan-Ransom.Mbro
eGambit Unsafe.AI_Score_99%
Fortinet W32/Mblocker.B!kit
BitDefenderTheta Gen:NN.ZelphiF.34590.mmKfaGl02Lfc
AVG FileRepMalware
Avast FileRepMalware
Qihoo-360 Win32/Constructor.aff

How to remove HackTool:Win32/Bootlock.A 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 HackTool:Win32/Bootlock.A 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 HackTool:Win32/Bootlock.A 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/comparison

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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