Win32/Kryptik.FPDU

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

What is Win32/Kryptik.FPDU infection?

In this article you will find about the meaning of Win32/Kryptik.FPDU and its adverse influence on your computer. Such ransomware are a type of malware that is specified by on-line frauds to demand paying the ransom by a victim.

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In the majority of the situations, Win32/Kryptik.FPDU ransomware will advise its targets to start funds move for the function of reducing the effects of the modifications that the Trojan infection has presented to the victim’s device.

Win32/Kryptik.FPDU Summary

These modifications 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • A process created a hidden window;
  • Unconventionial language used in binary resources: Russian;
  • 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;
  • Attempts to delete volume shadow copies;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • 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 modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers situated on the victim’s hard drive — so the target can no more utilize the information;
  • Preventing regular access 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.FPDU

One of the most normal channels whereby Win32/Kryptik.FPDU Ransomware Trojans are infused are:

  • By means of phishing emails;
  • As a repercussion of individual ending up on a source that holds a harmful software application;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the victim’s PC or stop the gadget from working in a correct fashion – while additionally placing a ransom note that mentions the need for the sufferers to impact the repayment for the function of decrypting the files or restoring the data system back to the initial condition. In the majority of instances, the ransom note will certainly turn up when the customer reboots the PC after the system has already been harmed.

Win32/Kryptik.FPDU distribution networks.

In different edges of the globe, Win32/Kryptik.FPDU expands by leaps and also bounds. However, the ransom money notes and also tricks of extorting the ransom amount might vary depending upon certain local (regional) settings. The ransom notes and also methods of obtaining the ransom money amount may differ depending on specific regional (local) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software program.

    In particular areas, the Trojans often wrongfully report having detected some unlicensed applications allowed on the victim’s tool. The sharp after that demands the user to pay the ransom.

    Faulty declarations about illegal material.

    In countries where software program piracy is much less prominent, this technique is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.FPDU popup alert might falsely assert to be stemming from a police establishment and will report having located child porn or other unlawful data on the tool.

    Win32/Kryptik.FPDU popup alert might incorrectly assert to be deriving from a law enforcement establishment and will certainly report having situated kid pornography or other prohibited information on the device. The alert will similarly contain a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: C5FC1BCA
md5: 3d872358924d2717cd8de7c978f1a5b3
name: 3D872358924D2717CD8DE7C978F1A5B3.mlw
sha1: 3890708c31c3133b9330087e921efc0bd511fb35
sha256: fcee691594725ad8a67ae72dcb92ce3d44386645069b580ea7f69ce6155e71bc
sha512: 8c126d626709c56d70ea129cde42815c2eb42afd4fee7eea14337470484d3ef5ef87dc9143b29ed2e5a45de1a07bdfad4b7269edad8bce54c691cec9bcd59bd1
ssdeep: 768:ZOzJ0PGqvYPp9CTBIPKSQhHUTvv1LO7EdY+H+O+D3JDcGqvTGqv:E0OqvYPpRPKSaHUT1LWEC+3UqvKqv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FPDU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005078631 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10998
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.A4
ALYac Gen:Variant.Crypt.38
Cylance Unsafe
Zillya Trojan.Spora.Win32.669
Sangfor Trojan.Win32.Save.a
K7GW Trojan ( 005078631 )
Cybereason malicious.8924d2
Cyren W32/S-26bbd9ea!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FPDU
APEX Malicious
Avast Win32:Filecoder-BD [Trj]
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Crypt.38
NANO-Antivirus Trojan.Win32.Spora.emdmtu
MicroWorld-eScan Gen:Variant.Crypt.38
Tencent Malware.Win32.Gencirc.10b65aa3
Ad-Aware Gen:Variant.Crypt.38
Sophos Mal/Generic-S + Mal/Elenoocka-E
Comodo Malware@#3sereoftzmf9f
BitDefenderTheta Gen:NN.ZexaF.34628.eqW@aqcGiQhc
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SM3B
McAfee-GW-Edition BehavesLike.Win32.Generic.km
FireEye Generic.mg.3d872358924d2717
Emsisoft Gen:Variant.Crypt.38 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Spora.ft
Webroot Trojan.Dropper.Ransom.Gen
Avira HEUR/AGEN.1105007
eGambit Unsafe.AI_Score_73%
Microsoft Ransom:Win32/Spora
AegisLab Trojan.Win32.Spora.j!c
GData Gen:Variant.Crypt.38
AhnLab-V3 Trojan/Win32.Spora.R196340
Acronis suspicious
McAfee Ransom-Spora!3D872358924D
MAX malware (ai score=81)
VBA32 Hoax.Spora
Malwarebytes Ransom.Spora
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SM3B
Rising Ransom.Spora!8.E3EE (RDMK:cmRtazpJVRo9XKxwbYGraMMaKWbj)
Yandex Trojan.GenAsa!73nuTyE9tV8
Ikarus Trojan-Ransom.Spora
Fortinet W32/Kryptik.GKVH!tr
AVG Win32:Filecoder-BD [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Spora.HxQBEpsA

How to remove Win32/Kryptik.FPDU 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.FPDU 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.FPDU 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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