Troj/Krypt-BO

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

What is Troj/Krypt-BO infection?

In this short article you will discover concerning the interpretation of Troj/Krypt-BO and also its negative influence on your computer. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom money by a sufferer.

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Most of the instances, Troj/Krypt-BO infection will instruct its sufferers to start funds move for the purpose of counteracting the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Troj/Krypt-BO Summary

These adjustments can be as follows:

  • Executable code extraction;
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Creates RWX memory;
  • Possible date expiration check, exits too soon after checking local time;
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • Reads data out of its own binary image;
  • A process created a hidden window;
  • The binary likely contains encrypted or compressed data.;
  • Executed a process and injected code into it, probably while unpacking;
  • Attempts to repeatedly call a single API many times in order to delay analysis time;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Collects information to fingerprint the system;
  • Anomalous binary characteristics;
  • Ciphering the records found on the target’s disk drive — so the target can no more make use of the data;
  • Preventing normal accessibility to the target’s workstation;

Related domains:

z.whorecord.xyzBScope.TrojanRansom.Blocker
a.tomx.xyzBScope.TrojanRansom.Blocker

Troj/Krypt-BO

The most regular channels through which Troj/Krypt-BO Trojans are injected are:

  • By methods of phishing e-mails;
  • As a repercussion of individual winding up on a resource that hosts a malicious software;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s PC or prevent the tool from functioning in a correct manner – while also positioning a ransom note that points out the requirement for the victims to impact the payment for the objective of decrypting the files or restoring the data system back to the preliminary condition. In a lot of instances, the ransom money note will certainly turn up when the client reboots the PC after the system has actually currently been damaged.

Troj/Krypt-BO distribution channels.

In different corners of the world, Troj/Krypt-BO grows by leaps and bounds. However, the ransom notes and also tricks of extorting the ransom quantity may differ relying on certain local (regional) settings. The ransom money notes and techniques of obtaining the ransom quantity might differ depending on particular regional (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having actually detected some unlicensed applications allowed on the victim’s device. The alert then requires the customer to pay the ransom money.

    Faulty declarations about unlawful material.

    In countries where software piracy is less prominent, this approach is not as reliable for the cyber frauds. Conversely, the Troj/Krypt-BO popup alert might incorrectly declare to be stemming from a law enforcement organization and will report having situated kid porn or other unlawful data on the gadget.

    Troj/Krypt-BO popup alert might falsely assert to be obtaining from a law enforcement organization as well as will certainly report having situated child pornography or other illegal information on the tool. The alert will likewise include a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 229F3EF7
md5: fc4d8576444802b941f73ead8ad49124
name: FC4D8576444802B941F73EAD8AD49124.mlw
sha1: e139bec41abf02d9567a8fd3b1d584e2bd108a23
sha256: 865fb5d0943fa8e3f0c802d3e2f97934dd57da81d7cd07e6b3c635722bf68042
sha512: 7b162f8de8fe48e156c2b94dfd5d60f953f5a41648e1eae8b37752caf6c9318ae9a7b1f6f0d155f81d5d71dda99ad3daa579d843d1c09fb7e673ecaa3d495468
ssdeep: 98304:bCO84A9+9dFbp7ZLQ7ZgdtZQcZirr1u7kscYbkcHnWUo9cqu:kl9+9dFTQ7ZgdtOcZif1hscY4+nqW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: sagzmioloku.aci
ProductVersion: 7.59.25.123
Copyright: Copyrighz (C) 2021, fudkageta
Translation: 0x0183 0x022e

Troj/Krypt-BO also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_70% (D)
K7GWRiskware ( 0040eff71 )
CyrenW32/Kryptik.EWJ.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
SophosTroj/Krypt-BO
BitDefenderThetaGen:NN.ZexaF.34110.@t1@aaWOxGkG
FireEyeGeneric.mg.fc4d8576444802b9
EmsisoftTrojan.Crypt (A)
SentinelOneStatic AI – Suspicious PE
MicrosoftTrojan:Win32/Sabsik.FL.B!ml
VBA32BScope.TrojanRansom.Blocker
MaxSecureTrojan.Malware.300983.susgen

How to remove Troj/Krypt-BO 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

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 Troj/Krypt-BO 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Troj/Krypt-BO 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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