Win32/Kryptik.FWBH

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

What is Win32/Kryptik.FWBH infection?

In this short article you will discover concerning the meaning of Win32/Kryptik.FWBH and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by online scams to demand paying the ransom by a sufferer.

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Most of the instances, Win32/Kryptik.FWBH ransomware will instruct its victims to launch funds move for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

Win32/Kryptik.FWBH Summary

These adjustments can be as adheres to:

  • 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.
  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Uses Windows utilities for basic functionality;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Attempts to access Bitcoin/ALTCoin wallets;
  • Generates some ICMP traffic;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents found on the victim’s hard drive — so the sufferer can no longer use the information;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyzRansom.Cerber.A4
a.tomx.xyzRansom.Cerber.A4

Win32/Kryptik.FWBH

One of the most typical networks whereby Win32/Kryptik.FWBH are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As an effect of individual ending up on a resource that organizes a destructive software program;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s computer or protect against the device from working in a proper way – while also putting a ransom note that states the requirement for the targets to impact the payment for the function of decrypting the files or restoring the documents system back to the first condition. In the majority of instances, the ransom money note will certainly turn up when the customer restarts the COMPUTER after the system has currently been harmed.

Win32/Kryptik.FWBH distribution channels.

In numerous edges of the globe, Win32/Kryptik.FWBH grows by jumps and bounds. Nonetheless, the ransom notes and techniques of extorting the ransom quantity may vary depending upon specific regional (local) settings. The ransom money notes and methods of obtaining the ransom money amount might vary depending on specific local (regional) setups.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software program.

    In specific locations, the Trojans often wrongfully report having actually discovered some unlicensed applications made it possible for on the victim’s tool. The sharp then requires the individual to pay the ransom money.

    Faulty declarations about illegal material.

    In nations where software piracy is less prominent, this method is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.FWBH popup alert may falsely declare to be deriving from a law enforcement institution and also will report having located child porn or other unlawful data on the gadget.

    Win32/Kryptik.FWBH popup alert might incorrectly assert to be obtaining from a regulation enforcement organization and also will report having located kid porn or other prohibited information on the tool. The alert will similarly have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: 5FBF6CBB
md5: 12a53eda21ab43b7b189654b2c02e8af
name: 12A53EDA21AB43B7B189654B2C02E8AF.mlw
sha1: 1a37436444fe11ad61370d953e050def440dc822
sha256: f1928f2891db17690001a11a2f81e5a64418db666dee2ac77fc655467ec83433
sha512: a99df68cf53ee8243cec1a17f9461ccdb4978f230bf2293c4506a5ec91d4f37c832418f51b705c42c6fb995e2ef1a6a7c01f74ace645b64186586f5e38ad2f44
ssdeep: 6144:CGEE+sB1T1Mw6caORY83feph0bb7YoFOqyO/n1otiG9vwZBf3JFdW0JU:CJE+K1M4f8ooqz/1rG9vwLAT
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 1.0.0.0
ProductVersion: 1.0.0.0
Translation: 0x0409 0x04e4

Win32/Kryptik.FWBH also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
Elasticmalicious (high confidence)
MicroWorld-eScanTrojan.GenericKDZ.70920
FireEyeGeneric.mg.12a53eda21ab43b7
CAT-QuickHealRansom.Cerber.A4
Qihoo-360Win32/Trojan.Generic.HxQBPIcA
McAfeeRansomware-GCQ!12A53EDA21AB
CylanceUnsafe
SangforTrojan.Win32.Save.a
K7AntiVirusTrojan ( 005224381 )
BitDefenderTrojan.GenericKDZ.70920
K7GWTrojan ( 005224381 )
CrowdStrikewin/malicious_confidence_100% (D)
CyrenW32/Cerber.CB.gen!Eldorado
SymantecPacked.Generic.459
APEXMalicious
AvastWin32:RansomX-gen [Ransom]
ClamAVWin.Malware.Emotet-6895766-0
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Zerber.eskjxl
AegisLabTrojan.Win32.Zerber.j!c
RisingTrojan.Kryptik!1.AD41 (RDMK:cmRtazrbEvzH16PbJoy4oSANIbtm)
Ad-AwareTrojan.GenericKDZ.70920
SophosML/PE-A + Mal/Cerber-AL
ComodoTrojWare.Win32.Bulta.GR@7k46qi
F-SecureTrojan.TR/Crypt.XPACK.Gen7
DrWebTrojan.Encoder.4691
TrendMicroRansom_HPCERBER.SMALY5B
McAfee-GW-EditionBehavesLike.Win32.Ransomware.tm
EmsisoftTrojan.GenericKDZ.70920 (B)
IkarusTrojan.Win32.Filecoder
JiangminTrojan.Zerber.dbv
AviraTR/Crypt.XPACK.Gen7
MAXmalware (ai score=100)
Antiy-AVLTrojan[Ransom]/Win32.Zerber
MicrosoftRansom:Win32/Cerber.L!bit
ArcabitTrojan.Generic.D11508
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataWin32.Trojan-Ransom.Cerber.AL
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Cerber.Exp
Acronissuspicious
VBA32BScope.Trojan.Encoder
ALYacTrojan.GenericKDZ.70920
MalwarebytesCerber.Ransom.Encrypt.DDS
PandaTrj/CI.A
ESET-NOD32a variant of Win32/Kryptik.FWBH
TrendMicro-HouseCallRansom_HPCERBER.SMALY5B
TencentMalware.Win32.Gencirc.10b40798
YandexTrojan.GenAsa!cF9pTDhGWoM
SentinelOneStatic AI – Malicious PE
eGambitUnsafe.AI_Score_98%
FortinetW32/Zamg.O!tr
BitDefenderThetaGen:NN.ZexaF.34590.Tr3@aeJEZjii
AVGWin32:RansomX-gen [Ransom]
Cybereasonmalicious.a21ab4
Paloaltogeneric.ml
MaxSecureWin.MxResIcn.Heur.Gen

How to remove Win32/Kryptik.FWBH 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 Win32/Kryptik.FWBH 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.FWBH 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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