Win32/Kryptik.FZKB

What is Win32/Kryptik.FZKB infection?

In this article you will find regarding the meaning of Win32/Kryptik.FZKB and its negative effect on your computer. Such ransomware are a kind of malware that is specified by on the internet frauds to require paying the ransom money by a sufferer.

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Most of the cases, Win32/Kryptik.FZKB ransomware will advise its targets to initiate funds move for the objective of counteracting the amendments that the Trojan infection has actually introduced to the target’s tool.

Win32/Kryptik.FZKB Summary

These adjustments 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.
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • A process created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • 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
  • Creates a hidden or system file. The malware adds the hidden attribute to every file and folder on your system, so it appears as if everything has been deleted from your hard drive.
  • Creates a copy of itself;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents located on the target’s hard disk — so the victim can no more utilize the data;
  • Preventing routine accessibility to the sufferer’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.FZKB

One of the most regular networks whereby Win32/Kryptik.FZKB Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of individual ending up on a resource that holds a destructive software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the victim’s PC or avoid the tool from working in a correct fashion – while additionally placing a ransom money note that discusses the requirement for the sufferers to effect the repayment for the purpose of decrypting the files or restoring the documents system back to the preliminary condition. In the majority of circumstances, the ransom note will show up when the client restarts the PC after the system has actually currently been damaged.

Win32/Kryptik.FZKB distribution channels.

In different edges of the globe, Win32/Kryptik.FZKB grows by leaps and also bounds. Nevertheless, the ransom money notes as well as methods of obtaining the ransom quantity may vary depending on specific regional (regional) settings. The ransom money notes and also techniques of extorting the ransom money quantity might differ depending on specific local (regional) settings.

Ransomware injection

For example:

    Faulty signals about unlicensed software.

    In specific locations, the Trojans often wrongfully report having spotted some unlicensed applications enabled on the victim’s gadget. The alert then demands the individual to pay the ransom money.

    Faulty statements regarding illegal material.

    In countries where software piracy is less preferred, this approach is not as effective for the cyber scams. Alternatively, the Win32/Kryptik.FZKB popup alert might falsely assert to be deriving from a police institution and also will certainly report having located kid pornography or various other illegal information on the tool.

    Win32/Kryptik.FZKB popup alert might wrongly claim to be obtaining from a law enforcement establishment and will certainly report having situated youngster porn or other unlawful data on the gadget. The alert will in a similar way contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 7A0B7ED7
md5: d213361a2e3b2e29f2a876f9f3c663c8
name: D213361A2E3B2E29F2A876F9F3C663C8.mlw
sha1: 9aee40a7edc00b9166bba08e640871ea5cb3313f
sha256: cfc0dd7430a4593ea4c22f2e2cde9da6e1007716c98243a21369b3b51490604f
sha512: 2303d99d6300f2d63ca17f0a52f3d28eda6ca29972f21774bae804c08332ef2b9ae3e221f767a750c79a21de95288e083333320287c356a28c7569ddf0f5dcda
ssdeep: 6144:0V/XBdOZqMCnRDPC1Q7UEyW23TmSTPEfu636VX2SuFn:UfBd2qvnRDPCmOPPyP36VXpAn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FZKB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 005073c51 )
Elastic malicious (high confidence)
ALYac Gen:Variant.Ransom.Sage.110
Malwarebytes MachineLearning/Anomalous.96%
Zillya Trojan.SageCrypt.Win32.41
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
BitDefender Gen:Variant.Ransom.Sage.110
K7GW Trojan ( 005073c51 )
Cybereason malicious.a2e3b2
BitDefenderTheta Gen:NN.ZexaF.34628.uuX@aOvJAbfi
Cyren W32/S-e7208f9b!Eldorado
Symantec SMG.Heur!gen
ESET-NOD32 a variant of Win32/Kryptik.FZKB
APEX Malicious
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.SageCrypt.qf
Alibaba Ransom:Win32/generic.ali2000010
NANO-Antivirus Trojan.Win32.SageCrypt.emavra
MicroWorld-eScan Gen:Variant.Ransom.Sage.110
Tencent Malware.Win32.Gencirc.10bbbc4c
Ad-Aware Gen:Variant.Ransom.Sage.110
Sophos Mal/Generic-S
Comodo Malware@#2n2eyfy4exupy
DrWeb Trojan.Encoder.10307
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_Cerber-23
McAfee-GW-Edition GenericR-JSL!D213361A2E3B
FireEye Generic.mg.d213361a2e3b2e29
Emsisoft Gen:Variant.Ransom.Sage.110 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.SageCrypt.p
Avira HEUR/AGEN.1128643
eGambit Unsafe.AI_Score_99%
Microsoft Ransom:Win32/Milicry
Arcabit Trojan.Ransom.Sage.110
AegisLab Trojan.Win32.SageCrypt.j!c
GData Gen:Variant.Ransom.Sage.110
AhnLab-V3 Trojan/Win32.SageCrypt.R196012
Acronis suspicious
VBA32 BScope.Trojan.Yakes
MAX malware (ai score=87)
TrendMicro-HouseCall Mal_Cerber-23
Rising Ransom.SageCrypt!8.E42C (CLOUD)
Ikarus Trojan-Ransom.GandCrab
Fortinet W32/Generic.AC.3DA3A2!tr
Panda Trj/Genetic.gen
Qihoo-360 Win32/Trojan.Ransom.961

How to remove Win32/Kryptik.FZKB 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 Win32/Kryptik.FZKB 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.FZKB 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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