Win32/Kryptik.FDQB

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

What is Win32/Kryptik.FDQB infection?

In this post you will find about the definition of Win32/Kryptik.FDQB as well as its adverse effect on your computer system. Such ransomware are a form of malware that is elaborated by online scams to require paying the ransom by a sufferer.

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Most of the cases, Win32/Kryptik.FDQB ransomware will certainly instruct its sufferers to launch funds move for the purpose of reducing the effects of the changes that the Trojan infection has actually presented to the sufferer’s gadget.

Win32/Kryptik.FDQB 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.

  • 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.
  • 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
  • Attempts to identify installed AV products by installation directory;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the target’s hard drive — so the victim can no more utilize the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.FDQB

One of the most regular networks through which Win32/Kryptik.FDQB Ransomware are injected are:

  • By methods of phishing emails;
  • As an effect of individual ending up on a resource that organizes a malicious software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the target’s computer or stop the tool from operating in a correct fashion – while likewise placing a ransom money note that states the requirement for the targets to effect the payment for the function of decrypting the documents or recovering the file system back to the first condition. In most circumstances, the ransom money note will certainly come up when the client restarts the PC after the system has currently been harmed.

Win32/Kryptik.FDQB circulation networks.

In different corners of the world, Win32/Kryptik.FDQB grows by jumps and also bounds. However, the ransom notes and techniques of obtaining the ransom money amount may differ relying on certain regional (regional) setups. The ransom notes as well as techniques of obtaining the ransom quantity might vary depending on particular neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In particular locations, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s device. The alert after that demands the user to pay the ransom.

    Faulty declarations concerning prohibited content.

    In nations where software program piracy is much less preferred, this method is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.FDQB popup alert might wrongly declare to be deriving from a law enforcement organization and also will report having located youngster porn or various other illegal information on the gadget.

    Win32/Kryptik.FDQB popup alert may falsely claim to be acquiring from a legislation enforcement establishment as well as will report having located kid porn or other prohibited information on the device. The alert will similarly contain a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 3B3A02A0
md5: 04a9ca74e0e7eda0df45438f16b6f7bf
name: 04A9CA74E0E7EDA0DF45438F16B6F7BF.mlw
sha1: cd1036c41151bd85d44b7948aee7e305697137fd
sha256: 808e24c3df898a028c50c6f5860059b2f0967a31bce58272c3208080912ef897
sha512: bb3a46735bd644ee89aca4400ccc394f605f83a12ab131082e0cae8f7c9db2bb97ec54f4399ed234b37499d259afa67e1196a7f2ecbb4d23d6e3a40ac6b7d2a7
ssdeep: 6144:k/ZvMQDL4OTrnGtnc6ri+888888888888W88888888888g:k/OQ34Ove888888888888W888888888o
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

InternalName: 3RVX.exe
FileDescription: 3RVX
FileVersion: 2.5
CompanyName: matt.malensek.net
Translation: 0x0000 0x04b0

Win32/Kryptik.FDQB also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.5189
MicroWorld-eScan Trojan.Ransom.Cerber.1
FireEye Generic.mg.04a9ca74e0e7eda0
CAT-QuickHeal Ransom.Cerber.G4
Qihoo-360 Win32/Ransom.Cerber.HxQBdckA
McAfee Ransomware-FXM!04A9CA74E0E7
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
BitDefender Trojan.Ransom.Cerber.1
K7GW Trojan ( 005224381 )
K7AntiVirus Trojan ( 005224381 )
BitDefenderTheta Gen:NN.ZexaF.34590.qq1@ai6!9Ejj
Cyren W32/Locky.H2.gen!Eldorado
Symantec Ransom.Cerber
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/Cerber.3d5d4a62
NANO-Antivirus Trojan.Win32.Encoder.evgkgb
Rising Trojan.Kryptik!1.AF0E (CLOUD)
Ad-Aware Trojan.Ransom.Cerber.1
Emsisoft Trojan.Ransom.Cerber.1 (B)
Comodo TrojWare.Win32.Kryptik.ERJ@6l0vie
F-Secure Heuristic.HEUR/AGEN.1112217
Baidu Win32.Trojan.Kryptik.anp
Zillya Trojan.Generic.Win32.265128
TrendMicro Ransom_CERBER.SMEJ1
McAfee-GW-Edition BehavesLike.Win32.Emotet.dh
Sophos Mal/Generic-R + Mal/Ransom-EJ
Ikarus Trojan-Ransom.FileCrypter
Jiangmin Downloader.LMN.duy
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1112217
Antiy-AVL RiskWare[Downloader]/Win32.LMN
Microsoft Ransom:Win32/Cerber.A
Arcabit Trojan.Ransom.Cerber.1
SUPERAntiSpyware Ransom.Cerber/Variant
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.Cerber.1
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cerber.R185863
Acronis suspicious
VBA32 BScope.TrojanPSW.Papras
ALYac Trojan.Ransom.Cerber.1
MAX malware (ai score=82)
Malwarebytes Malware.AI.2190580496
Panda Trj/GdSda.A
ESET-NOD32 a variant of Win32/Kryptik.FDQB
TrendMicro-HouseCall Ransom_CERBER.SMEJ1
Tencent Malware.Win32.Gencirc.10b3ed37
Yandex Trojan.GenAsa!w9Vac4doJ4A
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_99%
Fortinet W32/Kryptik.HCAW!tr
AVG Win32:Trojan-gen
Cybereason malicious.4e0e7e
Paloalto generic.ml
MaxSecure Trojan.Malware.7164915.susgen

How to remove Win32/Kryptik.FDQB 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.FDQB 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.FDQB 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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