Trojan-Ransom.Win32.Blocker.kpuo

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

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

In this short article you will certainly find about the meaning of Trojan-Ransom.Win32.Blocker.kpuo and its negative effect on your computer system. Such ransomware are a kind of malware that is specified by on the internet fraudulences to require paying the ransom money by a target.

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Most of the situations, Trojan-Ransom.Win32.Blocker.kpuo virus will certainly advise its sufferers to start funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s tool.

Trojan-Ransom.Win32.Blocker.kpuo Summary

These modifications 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.
  • 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
  • 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 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 target’s disk drive — so the victim can no longer utilize the data;
  • Preventing normal accessibility 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.kpuo

The most normal networks whereby Trojan-Ransom.Win32.Blocker.kpuo Trojans are infused are:

  • By means of phishing emails;
  • As an effect of user ending up on a resource that holds a destructive software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s PC or avoid the tool from functioning in an appropriate way – while additionally positioning a ransom note that discusses the need for the targets to effect the settlement for the function of decrypting the documents or bring back the documents system back to the initial condition. In most circumstances, the ransom money note will show up when the customer restarts the COMPUTER after the system has already been damaged.

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

In numerous edges of the world, Trojan-Ransom.Win32.Blocker.kpuo expands by leaps and bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money amount might differ depending upon specific neighborhood (regional) setups. The ransom notes as well as tricks of extorting the ransom quantity might vary depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty informs about unlicensed software application.

    In particular locations, the Trojans typically wrongfully report having discovered some unlicensed applications allowed on the target’s gadget. The sharp after that requires the user to pay the ransom.

    Faulty declarations regarding illegal content.

    In countries where software piracy is less preferred, this technique is not as efficient for the cyber scams. Additionally, the Trojan-Ransom.Win32.Blocker.kpuo popup alert might incorrectly assert to be deriving from a police institution and also will report having situated youngster porn or other unlawful information on the tool.

    Trojan-Ransom.Win32.Blocker.kpuo popup alert might falsely assert to be obtaining from a law enforcement institution as well as will certainly report having located youngster porn or other illegal information on the device. The alert will similarly include a need for the customer to pay the ransom.

Technical details

File Info:

crc32: 683CDF43
md5: a8e66d92220109bb8f76cd79f44b5316
name: A8E66D92220109BB8F76CD79F44B5316.mlw
sha1: bf745d683e102921e4e338f49ff1dc5b38d4733b
sha256: 4d307621c77a712bff917386c4cf18a654a764a318a7741bab24d4b6e450af56
sha512: 9c9fe0d4fced64837d6ba7f72852972e0504dc8a35db1cf459b80d1b0d18c7b58c3bedc4755d21c3a14dd0e8cac630c6189171d54c3057f911410ff879703461
ssdeep: 3072:Ax/5F/E7tEf0ns+p+tYlpJH7iXQNgggHlxDZiYLK5Wpht4xZVX42:AxhF4cp+wWJH7igNgjdFKsCRf
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.kpuo also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader7.3730
MicroWorld-eScan Trojan.VB.OJW
FireEye Generic.mg.a8e66d92220109bb
CAT-QuickHeal Worm.Ludbaruma.A3
McAfee W32/Rontokbro.gen@MM
Cylance Unsafe
VIPRE Worm.Win32.Ludbaruma.a (v)
Sangfor Ransom.Win32.Foreign_11.se
K7AntiVirus Trojan ( 0040f6141 )
BitDefender Trojan.VB.OJW
K7GW P2PWorm ( 0050fa4b1 )
Cybereason malicious.222010
BitDefenderTheta AI:Packer.D9B5E1A91D
Cyren W32/S-2ee348b2!Eldorado
Symantec SMG.Heur!gen
Zoner Trojan.Win32.70598
TrendMicro-HouseCall TSPY_LUDBARUMA_BK083EDB.TOMC
Avast Win32:Emotet-AI [Trj]
ClamAV Win.Worm.Untukmu-5949608-0
Kaspersky Trojan-Ransom.Win32.Blocker.kpuo
NANO-Antivirus Trojan.Win32.Regrun.dxtouo
ViRobot Trojan.Win32.Ludbaruma.Gen.A
Rising Ransom.Blocker!8.12A (CLOUD)
Ad-Aware Trojan.VB.OJW
Sophos ML/PE-A + W32/Mato-N
Comodo TrojWare.Win32.Injector.FZZA@57zyc0
F-Secure Trojan.TR/Agent.gdnw
Baidu Win32.Worm.VB.k
Zillya Trojan.RegrunGen.Win32.1
TrendMicro TSPY_LUDBARUMA_BK083EDB.TOMC
McAfee-GW-Edition BehavesLike.Win32.Rontokbro.dm
SentinelOne Static AI – Malicious PE
Emsisoft Trojan.VB.OJW (B)
Ikarus Trojan.AgentMB.VB
Jiangmin Trojan.Blocker.tav
MaxSecure Trojan-Ransom.Win32.Blocker.kpuo
Avira TR/Agent.gdnw
Antiy-AVL Trojan/Win32.Unknown
Microsoft Worm:Win32/Ludbaruma.A
Arcabit Trojan.VB.OJW
SUPERAntiSpyware Worm.Ludbaruma/Variant
ZoneAlarm Trojan-Ransom.Win32.Blocker.kpuo
GData Win32.Worm.Ludbaruma.A
Cynet Malicious (score: 100)
AhnLab-V3 Backdoor/Win32.IRCBot.R1456
Acronis suspicious
ALYac Trojan.VB.OJW
MAX malware (ai score=88)
VBA32 TScope.Trojan.VB
Malwarebytes Generic.Trojan.Malicious.DDS
Panda Trj/Genetic.gen
APEX Malicious
ESET-NOD32 Win32/VB.ORD
Tencent Trojan-Ransom.Win32.Blocker.kalr
Yandex Trojan.GenAsa!3Dzo+yWZn14
TACHYON Trojan/W32.VB-Ludbaruma.Zen.B
eGambit Unsafe.AI_Score_100%
Fortinet W32/Regrun.PKE!tr
AVG Win32:Emotet-AI [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Worm.FakeFolder.HU

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