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

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

In this short article you will certainly discover regarding the interpretation of Trojan-Ransom.Win32.Blocker.ivhl as well as its negative influence on your computer system. Such ransomware are a form of malware that is specified by on-line scams to demand paying the ransom money by a sufferer.

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Most of the situations, Trojan-Ransom.Win32.Blocker.ivhl ransomware will advise its sufferers to launch funds transfer for the purpose of neutralizing the amendments that the Trojan infection has presented to the victim’s device.

Trojan-Ransom.Win32.Blocker.ivhl Summary

These adjustments can be as follows:

  • 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;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Russian;
  • 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.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to modify Explorer settings to prevent hidden files from being displayed;
  • Ciphering the documents found on the target’s hard disk — so the sufferer can no longer use the information;
  • Preventing routine accessibility 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.
Similar behavior
Related domains Trojan-Ransom.Win32.Fullscreen!O Trojan-Ransom.Win32.Fullscreen!O


The most regular channels whereby Trojan-Ransom.Win32.Blocker.ivhl Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a source that holds a harmful software program;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or prevent the tool from operating in a proper way – while likewise positioning a ransom note that discusses the demand for the sufferers to effect the settlement for the objective of decrypting the papers or bring back the data system back to the preliminary condition. In a lot of circumstances, the ransom money note will turn up when the client reboots the COMPUTER after the system has actually already been damaged.

Trojan-Ransom.Win32.Blocker.ivhl circulation networks.

In different edges of the world, Trojan-Ransom.Win32.Blocker.ivhl grows by jumps as well as bounds. Nonetheless, the ransom money notes and techniques of obtaining the ransom quantity might differ depending upon particular regional (local) settings. The ransom money notes and techniques of obtaining the ransom quantity may differ depending on specific neighborhood (regional) setups.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software.

    In specific areas, the Trojans usually wrongfully report having identified some unlicensed applications enabled on the victim’s tool. The alert then requires the individual to pay the ransom money.

    Faulty declarations concerning prohibited web content.

    In nations where software program piracy is much less preferred, this technique is not as reliable for the cyber scams. Alternatively, the Trojan-Ransom.Win32.Blocker.ivhl popup alert may incorrectly declare to be stemming from a law enforcement establishment and also will certainly report having situated child pornography or other prohibited information on the device.

    Trojan-Ransom.Win32.Blocker.ivhl popup alert may incorrectly assert to be deriving from a regulation enforcement institution and will certainly report having located child porn or various other illegal information on the device. The alert will similarly contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 38D1DA98
md5: 13d061cc939ade6924a49038ae3b48bb
name: invite.exe
sha1: 2cc89e1b7453c6686d9550781ad8a3f30df92c4f
sha256: 8c17967810e828f650e47a34e265af0dda3cd0f756ff7746f2aa2ba4e09faa81
sha512: 8b5dfe9f2584f8c2141ed9c6301ea3919d0f97eb38d77cb594df2457046114da0468e564bfc6a554abaa3aeccf7d07bfdc7cfd012b5f03d820a84d4bc21fbc0e
ssdeep: 6144:cLy84u9nSO2GjZkD10BIY3rb1YfBdfpoZ3u/Ht52w6JSeiFPXVxP:I+u9nx2GjMY3XKfd/H/9PHP
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

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

GridinSoft Trojan.Ransom.Gen
Bkav W32.BitwanX.Trojan
MicroWorld-eScan Trojan.Generic.5848174
nProtect Trojan/W32.Agent.407040.CO
CMC Trojan-Ransom.Win32.Fullscreen!O
CAT-QuickHeal Ransom.Weenloc.A8
McAfee Trojan-FAZX!13D061CC939A
Malwarebytes Trojan.Winlock
Zillya Trojan.Fullscreen.Win32.35
TheHacker Trojan/
K7GW Trojan ( 0039911e1 )
K7AntiVirus Trojan ( 0039911e1 )
TrendMicro Ransom_WINLOCK.SM
Baidu Win32.Trojan.LockScreen.b
F-Prot W32/Trojan2.OAEZ
Symantec Trojan.Ransomlock
TotalDefense Win32/Ransom.PC
TrendMicro-HouseCall Ransom_WINLOCK.SM
Avast Win32:LockScreen-AHV [Trj]
ClamAV Win.Trojan.Fullscreen-41
Kaspersky Trojan-Ransom.Win32.Blocker.ivhl
BitDefender Trojan.Generic.5848174
NANO-Antivirus Trojan.Win32.Fullscreen.crnep
ViRobot Trojan.Win32.A.ChameleonUnlicence.383298[h]
AegisLab Troj.Ransom.W32.PornoAsset.cioy!c
Rising Trojan.Generic-6lppZ5G10kR (cloud)
Ad-Aware Trojan.Generic.5848174
Sophos Mal/Ransom-AI
Comodo TrojWare.Win32.Ransom.Fullscreen.fgt
F-Secure Trojan.Generic.5848174
DrWeb Trojan.Winlock.3333
VIPRE Win32.Malware!Drop
Invincea ransom.win32.weenloc.a
McAfee-GW-Edition BehavesLike.Win32.Dropper.fh
Emsisoft Trojan.Generic.5848174 (B)
Cyren W32/Trojan.GDVD-7096
Jiangmin Trojan/Fullscreen.ak
Fortinet W32/LockScreen.AGU!tr
Antiy-AVL Trojan[Ransom]/Win32.PornoAsset.cioy
Arcabit Trojan.Generic.D593C6E
SUPERAntiSpyware Trojan.Agent/Gen-Ransom
Microsoft Ransom:Win32/Weenloc.A
AhnLab-V3 Trojan/Win32.Atraps.C44235
ALYac Trojan.Generic.5848174
AVware Win32.Malware!Drop
VBA32 Hoax.PornoAsset
ESET-NOD32 Win32/LockScreen.AGU
Tencent Win32.Trojan.Pornoasset.Dzae
Yandex Trojan.Birele!7lgBxo1Ed38
Ikarus Trojan-Ransom.Win32.Birele
GData Trojan.Generic.5848174
AVG Generic36.IRL
Panda Generic Malware
CrowdStrike malicious_confidence_97% (W)
Qihoo-360 Malware.Radar01.Gen

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