Trojan.Knownbe4

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

What is Trojan.Knownbe4 infection?

In this post you will certainly locate about the interpretation of Trojan.Knownbe4 and also its unfavorable effect on your computer. Such ransomware are a form of malware that is elaborated by on-line scams to require paying the ransom by a victim.

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Most of the instances, Trojan.Knownbe4 virus will certainly advise its victims to initiate funds move for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the victim’s device.

Trojan.Knownbe4 Summary

These modifications can be as adheres to:

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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.
  • Ciphering the files situated on the victim’s hard disk drive — so the victim can no more use the data;
  • Preventing routine 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.
Similar behavior
Related domains
z.whorecord.xyzHEUR:Trojan-Ransom.Win32.Fasem.a
a.tomx.xyzHEUR:Trojan-Ransom.Win32.Fasem.a

Trojan.Knownbe4

One of the most typical channels through which Trojan.Knownbe4 are injected are:

  • By methods of phishing emails;
  • As a repercussion of user winding up on a source that holds a malicious software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the information on the sufferer’s PC or prevent the tool from working in a correct fashion – while likewise placing a ransom note that discusses the demand for the targets to effect the repayment for the purpose of decrypting the records or recovering the file system back to the initial problem. In many instances, the ransom note will certainly turn up when the client reboots the COMPUTER after the system has actually already been damaged.

Trojan.Knownbe4 circulation networks.

In different edges of the globe, Trojan.Knownbe4 grows by leaps and bounds. Nonetheless, the ransom notes and also methods of obtaining the ransom money quantity may vary depending upon certain neighborhood (local) settings. The ransom money notes and methods of extorting the ransom money quantity may differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software.

    In specific locations, the Trojans commonly wrongfully report having actually identified some unlicensed applications allowed on the victim’s tool. The alert then demands the individual to pay the ransom.

    Faulty declarations concerning unlawful web content.

    In nations where software program piracy is much less preferred, this approach is not as efficient for the cyber fraudulences. Conversely, the Trojan.Knownbe4 popup alert may incorrectly claim to be stemming from a police institution as well as will certainly report having situated kid pornography or other unlawful information on the device.

    Trojan.Knownbe4 popup alert might incorrectly declare to be obtaining from a regulation enforcement establishment and also will report having situated kid pornography or various other unlawful information on the tool. The alert will in a similar way have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 2F1078A6
md5: 36775930a4af74bed8561b906462bd78
name: 36775930A4AF74BED8561B906462BD78.mlw
sha1: 0b06d4ad74fcce28042af62dab73e46f7867ac5a
sha256: 9fb852713cbdc5ea2f1165d71d7c83cb67d2b0e476b3f9b5b9725687daed07d3
sha512: d4a65472b0268c734e2eed6326988c63027ad14efb66b5223bda1ed66203d5502aeafb0ea28bff6aa9d27c2637a34889b8e1652a410dbac336dc08b6479aa019
ssdeep: 6144:Rx/F5g5BX2u/d6AjWcPyC4koXAXUd2CCkm/taEFl3g6RswD1f6Wp5V:R2zX2u/d6AjWcfHEhm/XFl3fRRUWP
type: PE32 executable (console) Intel 80386 Mono/.Net assembly, for MS Windows

Version Info:

Translation: 0x0000 0x04b0
LegalCopyright:
Assembly Version: 1.1.0.76
InternalName: Remover.exe
FileVersion: 1.1.0.76
ProductVersion: 1.1.0.76
FileDescription:
OriginalFilename: Remover.exe

Trojan.Knownbe4 also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 005159961 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Knownbe4
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_90% (W)
AlibabaRiskWare:Win32/Fasem.728170cc
K7GWTrojan ( 005159961 )
Cybereasonmalicious.d74fcc
CyrenW32/S-704b571d!Eldorado
SymantecHacktool.Cryptran!g2
ESET-NOD32a variant of MSIL/Riskware.KnownBe4.A
APEXMalicious
AvastWin32:MalwareX-gen [Trj]
ClamAVWin.Trojan.Generic-6268112-0
KasperskyHEUR:Trojan-Ransom.Win32.Fasem.a
NANO-AntivirusTrojan.Win32.MSILPerseus.ezgdij
TencentTrojan.Win32.Fasem.a
SophosGeneric ML PUA (PUA)
BitDefenderThetaGen:NN.ZemsilF.34690.xm0@aWfocij
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_Fasem.R002C0OEM21
McAfee-GW-EditionGenericRXCY-VM!36775930A4AF
FireEyeGeneric.mg.36775930a4af74be
EmsisoftTrojan.Ransom (A)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.blqod
AviraHEUR/AGEN.1127299
eGambitUnsafe.AI_Score_97%
Antiy-AVLTrojan/Generic.ASMalwS.2243791
MicrosoftRansom:Win32/Rantest!rfn
ZoneAlarmHEUR:Trojan-Ransom.Win32.Fasem.a
GDataWin32.Trojan.Agent.P2I9CU
AhnLab-V3Trojan/Win32.Miner.R213269
McAfeeGenericRXCY-VM!36775930A4AF
MAXmalware (ai score=100)
VBA32Trojan.MSIL.Miner
MalwarebytesBladabindi.Backdoor.Njrat.DDS
PandaTrj/CI.A
TrendMicro-HouseCallRansom_Fasem.R002C0OEM21
RisingRansom.Rantest!8.EB76 (CLOUD)
YandexTrojan.Agent!fe6Tlrg61TU
IkarusTrojan-Ransom.Rantest
FortinetMSIL/Fasem.A!tr.ransom
AVGWin32:MalwareX-gen [Trj]
Paloaltogeneric.ml

How to remove Trojan.Knownbe4 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.Knownbe4 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.Knownbe4 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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