Win32/Kryptik.FLDX

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

What is Win32/Kryptik.FLDX infection?

In this short article you will certainly discover regarding the meaning of Win32/Kryptik.FLDX and also its unfavorable influence on your computer. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom money by a sufferer.

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Most of the situations, Win32/Kryptik.FLDX infection will advise its sufferers to initiate funds transfer for the function of counteracting the amendments that the Trojan infection has introduced to the victim’s tool.

Win32/Kryptik.FLDX 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.
  • 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.
  • 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.

  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits behavior characteristic of Cerber ransomware;
  • Exhibits possible ransomware file modification behavior;
  • Writes a potential ransom message to disk;
  • 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 access Bitcoin/ALTCoin wallets;
  • Creates a known Cerber ransomware decryption instruction / key file.;
  • 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 records situated on the victim’s disk drive — so the sufferer can no longer utilize the information;
  • Preventing regular access 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.FLDX

The most typical channels through which Win32/Kryptik.FLDX Trojans 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 a repercussion of user winding up on a resource that hosts a destructive software;

As soon as the Trojan is effectively infused, it will either cipher the data on the sufferer’s PC or prevent the tool from functioning in an appropriate manner – while also placing a ransom note that points out the requirement for the sufferers to impact the settlement for the purpose of decrypting the records or bring back the file system back to the first condition. In the majority of instances, the ransom note will certainly show up when the customer reboots the PC after the system has currently been harmed.

Win32/Kryptik.FLDX distribution channels.

In various corners of the globe, Win32/Kryptik.FLDX grows by jumps as well as bounds. However, the ransom money notes as well as methods of obtaining the ransom money amount may vary depending upon specific regional (regional) setups. The ransom money notes as well as tricks of extorting the ransom money amount might vary depending on specific regional (local) settings.

Ransomware injection

For example:

    Faulty informs regarding unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having actually found some unlicensed applications made it possible for on the victim’s device. The sharp then demands the individual to pay the ransom.

    Faulty declarations about prohibited content.

    In countries where software piracy is less prominent, this approach is not as efficient for the cyber frauds. Conversely, the Win32/Kryptik.FLDX popup alert might wrongly claim to be deriving from a law enforcement establishment as well as will report having situated child pornography or various other unlawful information on the tool.

    Win32/Kryptik.FLDX popup alert might incorrectly claim to be acquiring from a law enforcement establishment and also will certainly report having located kid porn or other unlawful data on the tool. The alert will similarly contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: A66AC9E0
md5: bac92188fe780a8a57a0b3d88ebf7315
name: BAC92188FE780A8A57A0B3D88EBF7315.mlw
sha1: f40c471ed7fd5ec7f34cd965e6fe7b3c67302c1c
sha256: 923428d539fb2bf9054434e64b6afef0142ffa67e5a9876a1d623d00eb550c94
sha512: 5a152042b1015c1e87715e0ca6de38e04b0c852b22435eccfe3894f5914878b682324ecdcc86f3325225be6c252ba62ddc8d1378aa492cdc15d049b1d8878d19
ssdeep: 6144:VIU/RKs7QHNYmgnNbst6ry5EnlfRnW33ZfIPRXuhB7ItlQ2:V/Is7QHNYmQcz56ZmZfORezItlQ2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompanyName: A shampoo
Translation: 0x0409 0x04b0

Win32/Kryptik.FLDX also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
MicroWorld-eScan Gen:Variant.Razy.770897
FireEye Generic.mg.bac92188fe780a8a
CAT-QuickHeal Ransom.Cerber.A4
McAfee Ransomware-GCQ!BAC92188FE78
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.995186
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005224381 )
BitDefender Gen:Variant.Razy.770897
K7GW Trojan ( 005224381 )
Cybereason malicious.8fe780
Baidu Win32.Trojan.Kryptik.bin
Cyren W32/S-3e1d46f2!Eldorado
Symantec Packed.Generic.459
APEX Malicious
Avast Win32:Filecoder-BG [Trj]
ClamAV Win.Ransomware.Cerber-5970076-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/Cerber.468b1332
NANO-Antivirus Trojan.Win32.Menti.eumhsm
Rising Trojan.Kryptik!1.AE9C (CLOUD)
Ad-Aware Gen:Variant.Razy.770897
Emsisoft Gen:Variant.Razy.770897 (B)
Comodo TrojWare.Win32.Filecoder.BD@6qki3k
F-Secure Heuristic.HEUR/AGEN.1121403
DrWeb Trojan.MulDrop7.8883
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCERBER.SMALY5A
McAfee-GW-Edition BehavesLike.Win32.Generic.hh
Sophos ML/PE-A + Mal/Cerber-B
Ikarus Trojan-Ransom.Cerber
Jiangmin Trojan.Generic.apkgp
MaxSecure Trojan.Malware.300983.susgen
Avira HEUR/AGEN.1121403
Antiy-AVL Trojan/Win32.TSGeneric
Microsoft Ransom:Win32/Cerber.H
Arcabit Trojan.Razy.DBC351
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Variant.Razy.770897
Cynet Malicious (score: 100)
AhnLab-V3 Win-Trojan/Cerber.Gen
Acronis suspicious
BitDefenderTheta Gen:NN.ZexaF.34590.Jq1@a8UMMQgi
ALYac Gen:Variant.Razy.770897
MAX malware (ai score=100)
VBA32 BScope.Trojan.Menti
Malwarebytes Cerber.Ransom.Encrypt.DDS
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.FLDX
TrendMicro-HouseCall Ransom_HPCERBER.SMALY5A
Tencent Malware.Win32.Gencirc.10b140fd
Yandex Trojan.GenAsa!QYiBnDemiX8
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.HGZD!tr
AVG Win32:Filecoder-BG [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (W)
Qihoo-360 Win32/Ransom.Filecoder.HxQB6XsA

How to remove Win32/Kryptik.FLDX 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.FLDX 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.FLDX 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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