Trojan-Ransom.Win32.Blocker.mtgn

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

What is Trojan-Ransom.Win32.Blocker.mtgn infection?

In this post you will find regarding the definition of Trojan-Ransom.Win32.Blocker.mtgn and its negative effect on your computer system. Such ransomware are a type of malware that is elaborated by online scams to demand paying the ransom money by a sufferer.

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In the majority of the instances, Trojan-Ransom.Win32.Blocker.mtgn virus will advise its victims to initiate funds transfer for the purpose of counteracting the amendments that the Trojan infection has actually introduced to the target’s gadget.

Trojan-Ransom.Win32.Blocker.mtgn Summary

These adjustments 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.
  • Expresses interest in specific running processes;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Installs itself for autorun at Windows startup. There is simple tactic using the Windows startup folder located at:
    C:\Users\[user-name]\AppData\Roaming\Microsoft\Windows\StartMenu\Programs\Startup. Shortcut links (.lnk extension) placed in this folder will cause Windows to launch the application each time [user-name] logs into Windows.

    The registry run keys perform the same action, and can be located in different locations:

    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run
    • HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\RunOnce
    • HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\RunOnce
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • 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.
  • Attempts to identify installed AV products by installation directory;
  • Detects VirtualBox through the presence of a registry key;
  • Attempts to disable System Restore. System Restore function – allows you to revert the computer’s state (system files, applications, and system settings) to that of a previous point in time, which can be used to recover after a virus attack.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify Explorer settings to prevent file extensions from being displayed;
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Ciphering the documents located on the sufferer’s disk drive — so the target can no more utilize the data;
  • Preventing regular access to the target’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.

Trojan-Ransom.Win32.Blocker.mtgn

The most regular networks where Trojan-Ransom.Win32.Blocker.mtgn Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As an effect of individual winding up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or protect against the tool from working in a proper way – while additionally putting a ransom money note that mentions the demand for the targets to impact the payment for the objective of decrypting the papers or recovering the file system back to the preliminary problem. In the majority of circumstances, the ransom note will certainly turn up when the client reboots the PC after the system has actually currently been damaged.

Trojan-Ransom.Win32.Blocker.mtgn circulation channels.

In various edges of the globe, Trojan-Ransom.Win32.Blocker.mtgn grows by jumps and also bounds. Nevertheless, the ransom notes and also methods of extorting the ransom money quantity might differ depending upon certain regional (regional) settings. The ransom notes as well as techniques of obtaining the ransom money amount might vary depending on particular regional (local) setups.

Ransomware injection

As an example:

    Faulty signals regarding unlicensed software program.

    In particular locations, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the target’s tool. The sharp then demands the customer to pay the ransom.

    Faulty declarations concerning unlawful content.

    In nations where software piracy is less prominent, this method is not as reliable for the cyber fraudulences. Conversely, the Trojan-Ransom.Win32.Blocker.mtgn popup alert may wrongly claim to be stemming from a police institution as well as will report having located youngster pornography or other prohibited data on the device.

    Trojan-Ransom.Win32.Blocker.mtgn popup alert might falsely declare to be deriving from a legislation enforcement organization and will report having located child porn or various other illegal information on the gadget. The alert will likewise consist of a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 78935F40
md5: e2376fdf7af972c650670ab356431476
name: E2376FDF7AF972C650670AB356431476.mlw
sha1: 3f91e060127337489799b75b4be607186ca9978e
sha256: 4d2ce8e6ef74715fbaafb63622821f54a4d8d120487ad3d6cab4f52d850aa8f8
sha512: e6bcbce05ff9086031aaadc8e37f0b5b9c5ffa1d2aa2c0444fae06cd0ff5662f22589f49c0eb960c707ca5e086a2bfd5fd85c6d0329ab0f3638d45d668e1813c
ssdeep: 3072:Ax/5F/E7tEf00+p+tYlpJH7iXQNgggHlxDZiYLK5Wph:AxhF4cJ+wWJH7igNgjdFKs
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x0409 0x04b0
InternalName: DATA
FileVersion: 0.00.0020
CompanyName: Oncom
ProductName: xk
ProductVersion: 0.00.0020
OriginalFilename: DATA.exe

Trojan-Ransom.Win32.Blocker.mtgn also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.FamVT.RegVdb.Trojan
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.VB.OJW
FireEyeGeneric.mg.e2376fdf7af972c6
CAT-QuickHealWorm.Ludbaruma.A3
McAfeeW32/Rontokbro.gen@MM
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforRansom.Win32.Foreign_11.se
K7AntiVirusTrojan ( 0040f6141 )
BitDefenderTrojan.VB.OJW
K7GWP2PWorm ( 0050fa4b1 )
Cybereasonmalicious.f7af97
BitDefenderThetaAI:Packer.80EEED3E1D
CyrenW32/S-2ee348b2!Eldorado
SymantecTrojan.Gen.2
BaiduWin32.Worm.VB.k
APEXMalicious
AvastWin32:WormX-gen [Wrm]
ClamAVWin.Worm.Untukmu-5949608-0
KasperskyTrojan-Ransom.Win32.Blocker.mtgn
NANO-AntivirusTrojan.Win32.Regrun.dxtouo
ViRobotWorm.Win32.Regrun.Gen.A
TencentTrojan-Ransom.Win32.Blocker.kalr
Ad-AwareTrojan.VB.OJW
SophosML/PE-A + W32/Mato-N
ComodoTrojWare.Win32.Injector.FZZA@57zyc0
F-SecureTrojan.TR/Agent.gdnw
DrWebTrojan.DownLoader7.3730
ZillyaTrojan.RegrunGen.Win32.1
TrendMicroTSPY_LUDBARUMA_BK083EDB.TOMC
McAfee-GW-EditionBehavesLike.Win32.Rontokbro.cm
EmsisoftTrojan.VB.OJW (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Blocker.tav
AviraTR/Agent.gdnw
MAXmalware (ai score=84)
Antiy-AVLTrojan/Win32.Unknown
MicrosoftWorm:Win32/Ludbaruma.A
SUPERAntiSpywareTrojan.Agent/Gen-Backdoor
ZoneAlarmTrojan-Ransom.Win32.Blocker.mtgn
GDataWin32.Worm.Ludbaruma.A
CynetMalicious (score: 100)
AhnLab-V3Backdoor/Win32.IRCBot.R1456
Acronissuspicious
VBA32TScope.Trojan.VB
ALYacTrojan.VB.OJW
TACHYONTrojan/W32.VB-Ludbaruma.Zen.B
MalwarebytesGeneric.Trojan.Malicious.DDS
PandaTrj/Genetic.gen
ZonerTrojan.Win32.70598
ESET-NOD32Win32/VB.ORD
TrendMicro-HouseCallTSPY_LUDBARUMA_BK083EDB.TOMC
RisingRansom.Blocker!8.12A (TFE:dGZlOgWKyi/lv9zO9g)
YandexTrojan.GenAsa!3Dzo+yWZn14
IkarusTrojan.AgentMB.VB
eGambitUnsafe.AI_Score_100%
FortinetW32/Regrun.PKE!tr
AVGWin32:WormX-gen [Wrm]
Paloaltogeneric.ml
CrowdStrikewin/malicious_confidence_100% (D)
Qihoo-360Win32/Worm.FakeFolder.HU

How to remove Trojan-Ransom.Win32.Blocker.mtgn 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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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 Trojan-Ransom.Win32.Blocker.mtgn 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-Ransom.Win32.Blocker.mtgn 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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