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The Daily Insight

Trojan-Ransom.Win32.Cryptodef.cjb

Author

Christopher Davis

Updated on April 15, 2026

What is Trojan-Ransom.Win32.Cryptodef.cjb infection?

In this short article you will certainly find regarding the meaning of Trojan-Ransom.Win32.Cryptodef.cjb as well as its unfavorable impact on your computer system. Such ransomware are a type of malware that is clarified by on the internet frauds to demand paying the ransom by a target.

In the majority of the instances, Trojan-Ransom.Win32.Cryptodef.cjb virus will advise its victims to start funds move for the objective of reducing the effects of the amendments that the Trojan infection has introduced to the victim’s tool.

Trojan-Ransom.Win32.Cryptodef.cjb Summary

These alterations can be as follows:

  • Reads data out of its own binary image;
  • Network activity detected but not expressed in API logs;
  • Ciphering the papers found on the target’s disk drive — so the victim can no more make use of the data;
  • Preventing regular accessibility to the sufferer’s workstation;

Trojan-Ransom.Win32.Cryptodef.cjb

The most common networks where Trojan-Ransom.Win32.Cryptodef.cjb Ransomware Trojans are injected are:

  • By methods of phishing e-mails;
  • As an effect of individual winding up on a resource that organizes a destructive software application;

As soon as the Trojan is effectively infused, it will either cipher the information on the target’s PC or protect against the tool from operating in an appropriate fashion – while additionally putting a ransom money note that states the demand for the targets to effect the repayment for the function of decrypting the records or bring back the file system back to the initial condition. In most instances, the ransom money note will certainly turn up when the customer restarts the PC after the system has already been damaged.

Trojan-Ransom.Win32.Cryptodef.cjb distribution networks.

In different corners of the world, Trojan-Ransom.Win32.Cryptodef.cjb expands by jumps and also bounds. Nonetheless, the ransom notes as well as methods of extorting the ransom quantity may differ depending on specific local (local) setups. The ransom money notes as well as tricks of obtaining the ransom money quantity might vary depending on particular local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software.

    In particular locations, the Trojans typically wrongfully report having found some unlicensed applications made it possible for on the victim’s gadget. The sharp then demands the individual to pay the ransom.

    Faulty statements concerning illegal content.

    In countries where software program piracy is less popular, this technique is not as effective for the cyber scams. Additionally, the Trojan-Ransom.Win32.Cryptodef.cjb popup alert may falsely assert to be originating from a law enforcement establishment and will certainly report having situated kid porn or other illegal information on the device.

    Trojan-Ransom.Win32.Cryptodef.cjb popup alert might wrongly declare to be deriving from a law enforcement organization as well as will certainly report having situated kid porn or other prohibited information on the tool. The alert will likewise contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 26D007FDmd5: 37646dbdca7e2f26b907890716ae677ename: 37646DBDCA7E2F26B907890716AE677E.mlwsha1: 0212388098fb3ba9442f3bcd19d0cdd9f4354553sha256: 41f7661aef70677f62f2a31ffea53eef975870ff663b7c3f2006168d5cbdb8eesha512: f38823d150d1e65d3e1fa69b476a303bc55e5d44c78f1ae97c80a0a4ec68a23106caa082231ae897b37db31c5665702881e7d0a2d8118afaaa8c7859af76a8fbssdeep: 6144:nLbii5bkgVuN+xSKV7Wkrsf7LsKr1wcFXGd4WfX:nXikbkgaISKVqRlFGXtype: PE32 executable (console) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c) 1999-2010 Igor PavlovInternalName: 7z.sfxFileVersion: 9.20CompanyName: Igor PavlovProductName: 7-ZipProductVersion: 9.20FileDescription: 7z Console SFXOriginalFilename: 7z.sfx.exeTranslation: 0x0409 0x04b0

Trojan-Ransom.Win32.Cryptodef.cjb also known as:

GridinSoftTrojan.Ransom.Gen
K7AntiVirusTrojan ( 0040fa3d1 )
DrWebTrojan.Encoder.514
CAT-QuickHealRansom.Crowti.A4
ALYacTrojan.GenericKD.30827748
CylanceUnsafe
SangforRansom.Win32.Crowti.A
AlibabaRansom:Win32/Cryptodef.c9a6b75f
K7GWTrojan ( 0040fa3d1 )
Cybereasonmalicious.dca7e2
CyrenW32/S-5799ca41!Eldorado
SymantecTrojan.Gen
ESET-NOD32a variant of Win32/Filecoder.CryptoWall.D
AvastSf:Crypt-AR [Trj]
ClamAVWin.Ransomware.Upatre-7101380-0
KasperskyTrojan-Ransom.Win32.Cryptodef.cjb
BitDefenderTrojan.GenericKD.30827748
NANO-AntivirusVirus.Win32.Gen.ccmw
MicroWorld-eScanTrojan.GenericKD.30827748
TencentWin32.Trojan.Cryptodef.Ljua
Ad-AwareTrojan.GenericKD.30827748
SophosMal/Generic-R + Troj/Ransom-AGU
ComodoMalware@#p1ze6p5kt3ko
BitDefenderThetaAI:Packer.C62FF6921E
VIPRETrojan.Win32.Generic!BT
TrendMicroTROJ_CRYPWALL.SNN
McAfee-GW-EditionBehavesLike.Win32.Generic.dh
FireEyeTrojan.GenericKD.30827748
EmsisoftTrojan.GenericKD.30827748 (B)
JiangminTrojan/Blocker.kur
AviraTR/Crypt.XPACK.Gen
eGambitGeneric.Malware
Antiy-AVLTrojan/Generic.ASMalwS.E56A05
KingsoftWin32.Troj.Undef.(kcloud)
MicrosoftRansom:Win32/Crowti.A
GDataTrojan.GenericKD.30827748
McAfeeGeneric.dtd
MAXmalware (ai score=100)
VBA32BScope.TrojanPSW.Spy
MalwarebytesTrojan.CryptoLocker
PandaGeneric Suspicious
TrendMicro-HouseCallTROJ_CRYPWALL.SNN
RisingTrojan.Generic@ML.100 (RDML:tS3TGfrfRdbav5Xdl4nQ1g)
YandexTrojan.Cryptodef!yrV9l90cYkY
IkarusTrojan.Win32.Filecoder
FortinetW32/RANSOM.AGU!tr
AVGSf:Crypt-AR [Trj]
Qihoo-360Win32/Ransom.Cryptodef.HgAASREA

How to remove Trojan-Ransom.Win32.Cryptodef.cjb virus?

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft">2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Download GridinSoft Anti-Malware

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.Cryptodef.cjb 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 Trojan-Ransom.Win32.Cryptodef.cjb you can always ask me in the comments for getting help.

References

  1. GridinSoft Anti-Malware Review from HowToFix site:
  2. More information about GridinSoft products: