Win32/Kryptik.JBV

What is Win32/Kryptik.JBV infection?

In this article you will find regarding the interpretation of Win32/Kryptik.JBV as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom by a victim.

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Most of the instances, Win32/Kryptik.JBV infection will instruct its victims to start funds transfer for the purpose of reducing the effects of the modifications that the Trojan infection has actually presented to the target’s tool.

Win32/Kryptik.JBV Summary

These alterations can be as follows:

  • 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.
  • 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.
  • 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
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records located on the target’s hard disk drive — so the victim can no more use the data;
  • Preventing routine access 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.

Win32/Kryptik.JBV

The most regular networks through which Win32/Kryptik.JBV Ransomware Trojans are injected are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a resource that organizes a malicious software program;

As soon as the Trojan is efficiently infused, it will either cipher the data on the sufferer’s computer or avoid the gadget from working in a proper way – while also placing a ransom note that discusses the requirement for the targets to impact the payment for the function of decrypting the documents or recovering the documents system back to the first problem. In many circumstances, the ransom note will come up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.JBV distribution networks.

In various corners of the world, Win32/Kryptik.JBV grows by leaps as well as bounds. However, the ransom money notes and also methods of obtaining the ransom money quantity might vary relying on specific neighborhood (local) settings. The ransom money notes and also methods of obtaining the ransom money quantity may differ depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In specific areas, the Trojans typically wrongfully report having discovered some unlicensed applications enabled on the sufferer’s gadget. The sharp then requires the individual to pay the ransom.

    Faulty declarations concerning prohibited web content.

    In nations where software application piracy is much less popular, this technique is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.JBV popup alert may incorrectly declare to be deriving from a law enforcement organization and will certainly report having located kid pornography or other illegal information on the device.

    Win32/Kryptik.JBV popup alert might falsely claim to be obtaining from a regulation enforcement institution as well as will certainly report having situated youngster porn or other prohibited information on the gadget. The alert will in a similar way have a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 81B75ED8
md5: 596c256d05e5bdbce9e5d15e0c01eecd
name: 596C256D05E5BDBCE9E5D15E0C01EECD.mlw
sha1: 1931bf10486a4076b71d35e5cdf647cf0f171284
sha256: 93843f58c701425e9076eb42ea6af3c1407e648005daa62945bc25c7eeb8edfa
sha512: c154d3f49d70176f7168c3ef9a201560247c97215f5b33ffe028522a3edb5a1b8afa50e59714fe03054b95f76c548d07faa6b6dcc24bb6607c9cfe03853040f0
ssdeep: 1536:cKbuEsXcV8hSCQ6CVzj2328cPWidQ4oAQL9hnYYO7L6K/h1S:JuPXCOS9pN2fidQRAinYZn6K/
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.JBV also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
Elastic malicious (high confidence)
DrWeb Trojan.MulDrop6.41642
McAfee W32/Bamital.e
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.941397
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Genasom.6e4b8aec
K7GW Trojan ( 0055dd191 )
K7AntiVirus Trojan ( 0055dd191 )
Cyren W32/Bamital.I
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.JBV
APEX Malicious
TotalDefense Win32/Spyeye.C!generic
Avast Win32:Crypt-IFG [Trj]
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKD.44275505
NANO-Antivirus Trojan.Win32.PornoBlocker.bvllm
MicroWorld-eScan Trojan.GenericKD.44275505
Tencent Win32.Trojan.Generic.Swlg
Ad-Aware Trojan.GenericKD.44275505
Sophos ML/PE-A + Mal/Bredo-E
Comodo Malware@#5eom3xu7i7p1
BitDefenderTheta Gen:NN.ZexaF.34628.iyW@a0xj@3hc
VIPRE Trojan.Win32.Bamital.i (v)
TrendMicro Ransom_LOCKSCREEN.CBQ165B
McAfee-GW-Edition W32/Bamital.e
FireEye Generic.mg.596c256d05e5bdbc
Emsisoft Trojan.GenericKD.44275505 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan/PornoBlocker.abj
Avira TR/Crypt.XPACK.Gen
eGambit Generic.Malware
Microsoft Ransom:Win32/Genasom.BR
Arcabit Trojan.Generic.D2A39731
AegisLab Trojan.Win32.Generic.4!c
GData Trojan.GenericKD.44275505
AhnLab-V3 Backdoor/Win32.Shiz.R2353
Acronis suspicious
VBA32 BScope.Trojan.Hottrend
MAX malware (ai score=100)
Malwarebytes Malware.Heuristic.1006
Panda Generic Malware
TrendMicro-HouseCall Ransom_LOCKSCREEN.CBQ165B
Rising Ransom.Genasom!8.293 (CLOUD)
Yandex Trojan.GenAsa!p9xx6m1dOWU
Ikarus Trojan-Ransom.PornoBlocker
Fortinet W32/Krap.A!tr
AVG Win32:Crypt-IFG [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HgIASOQA

How to remove Win32/Kryptik.JBV 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 Win32/Kryptik.JBV 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 Win32/Kryptik.JBV 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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