Win32/Kryptik.FDBL

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

What is Win32/Kryptik.FDBL infection?

In this article you will certainly discover concerning the definition of Win32/Kryptik.FDBL and also its adverse effect on your computer. Such ransomware are a form of malware that is specified by on-line frauds to demand paying the ransom money by a victim.

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Most of the instances, Win32/Kryptik.FDBL infection will certainly instruct its sufferers to initiate funds transfer for the objective of neutralizing the modifications that the Trojan infection has actually presented to the target’s tool.

Win32/Kryptik.FDBL 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.
  • Enumerates user accounts on the system;
  • 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 attempted to delay the analysis task.;
  • 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.

  • 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.
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • 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;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Mimics the file times of a Windows system file;
  • 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.
  • Attempts to identify installed AV products by installation directory;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the files situated on the sufferer’s hard drive — so the victim can no longer utilize the information;
  • Preventing routine accessibility 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.

Win32/Kryptik.FDBL

The most normal channels whereby Win32/Kryptik.FDBL Trojans are injected 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 a repercussion of user winding up on a source that organizes a destructive software;

As soon as the Trojan is successfully injected, it will certainly either cipher the data on the victim’s computer or avoid the tool from operating in a proper way – while likewise putting a ransom note that mentions the need for the sufferers to impact the repayment for the purpose of decrypting the papers or bring back the documents system back to the initial problem. In most circumstances, the ransom note will come up when the client reboots the PC after the system has already been harmed.

Win32/Kryptik.FDBL distribution networks.

In various corners of the world, Win32/Kryptik.FDBL expands by leaps and also bounds. However, the ransom notes and also techniques of extorting the ransom money amount may vary relying on particular local (regional) settings. The ransom money notes and tricks of obtaining the ransom quantity may differ depending on particular neighborhood (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software program.

    In particular locations, the Trojans usually wrongfully report having identified some unlicensed applications allowed on the sufferer’s device. The alert then demands the customer to pay the ransom money.

    Faulty statements concerning illegal content.

    In nations where software application piracy is less popular, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Kryptik.FDBL popup alert may incorrectly declare to be deriving from a police establishment and also will certainly report having located child porn or various other prohibited information on the device.

    Win32/Kryptik.FDBL popup alert might falsely assert to be acquiring from a law enforcement institution and also will report having located youngster porn or various other unlawful information on the tool. The alert will similarly include a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: C4B0D411
md5: bd36ceaff53074ced6da10a00e1ddc26
name: BD36CEAFF53074CED6DA10A00E1DDC26.mlw
sha1: de57f0e5346ccf0951f7b56a95704601777d27c6
sha256: b7b3d82f87d38d2921804094ab53a3e466cded6cb207176e6900bb978e3ccd22
sha512: 79931961ace79fa5294ec8ca02385b38cd0986c93c97596aa9b7838b8f59ab2e0a0e05ebab8d436c7108d1fa5c693b36298dc38277bd24338d6b158876596dcb
ssdeep: 6144:WnnKWF10mmyUD0X+lEzKEau5n7f888888888888W88888888888B:an7F10mm7Zkb888888888888W888888S
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyrightxa9 2015 IObit. All Rights Reserved.
InternalName: AYPDATE
FileVersion: 3.3.2.133
CompanyName: IObit
LegalTrademarks: IObit
FileDescription: IObit AYPDATE

Win32/Kryptik.FDBL also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005224381 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4691
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Cerber.G4
ALYac Trojan.Ransom.Cerber.1
Malwarebytes Ransom.Cerber
Zillya Trojan.Generic.Win32.62149
Sangfor Ransom.Win32.Cerber_66.se
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Cerber.d22aca1e
K7GW Trojan ( 005224381 )
Cybereason malicious.ff5307
Baidu Win32.Trojan.Kryptik.alb
Cyren W32/Zbot.JC.gen!Eldorado
Symantec Packed.Generic.459
ESET-NOD32 a variant of Win32/Kryptik.FDBL
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Vucha.dc
BitDefender Trojan.Ransom.Cerber.1
NANO-Antivirus Trojan.Win32.Encoder.evrlae
SUPERAntiSpyware Ransom.Cerber/Variant
MicroWorld-eScan Trojan.Ransom.Cerber.1
Tencent Win32.Trojan.Cerber.Pgmo
Ad-Aware Trojan.Ransom.Cerber.1
Sophos ML/PE-A + Mal/Ransom-EJ
Comodo TrojWare.Win32.Kryptik.ERJ@6l0vie
BitDefenderTheta Gen:NN.ZexaF.34628.qq1@aWvDljij
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCERBER.SM2
FireEye Generic.mg.bd36ceaff53074ce
Emsisoft Trojan.Ransom.Cerber.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.btnym
Avira TR/Crypt.ZPACK.Gen
eGambit Unsafe.AI_Score_81%
Microsoft Ransom:Win32/Cerber.A
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Packed.Win32.Mentiger.gen
GData Trojan.Ransom.Cerber.1
AhnLab-V3 Win-Trojan/Cerber.Gen
Acronis suspicious
McAfee Ransomware-GCQ!BD36CEAFF530
MAX malware (ai score=100)
VBA32 SScope.Malware-Cryptor.Inject
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_HPCERBER.SM2
Rising Trojan.Kryptik!1.AF0E (CLOUD)
Yandex Trojan.Agent!7pQ/XeSg4Fw
Ikarus Trojan-Ransom.FileCrypter
Fortinet W32/Dridex.DD!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Ransom.Cerber.HxQB8dsA

How to remove Win32/Kryptik.FDBL 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.FDBL 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 Win32/Kryptik.FDBL 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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