Win32/Kryptik.FDUN

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

What is Win32/Kryptik.FDUN infection?

In this short article you will discover concerning the meaning of Win32/Kryptik.FDUN and its unfavorable effect on your computer. Such ransomware are a type of malware that is clarified by on-line scams to require paying the ransom money by a sufferer.

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Most of the cases, Win32/Kryptik.FDUN ransomware will advise its targets to start funds transfer for the objective of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.FDUN Summary

These alterations 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.
  • Mimics the system’s user agent string for its own requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Behavior consistent with a dropper attempting to download the next stage.;
  • Exhibits behavior characteristic of Locky ransomware;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the victim’s hard drive — so the sufferer can no more make use of the information;
  • Preventing regular accessibility to the target’s workstation;

Win32/Kryptik.FDUN

The most common networks where Win32/Kryptik.FDUN 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 customer winding up on a source that organizes a malicious software;

As soon as the Trojan is effectively injected, it will certainly either cipher the information on the target’s computer or protect against the device from working in an appropriate way – while additionally placing a ransom note that discusses the need for the targets to effect the payment for the purpose of decrypting the records or bring back the documents system back to the first problem. In many circumstances, the ransom money note will turn up when the customer restarts the PC after the system has currently been harmed.

Win32/Kryptik.FDUN circulation channels.

In various corners of the globe, Win32/Kryptik.FDUN expands by jumps as well as bounds. However, the ransom notes and tricks of extorting the ransom quantity might differ depending on certain neighborhood (regional) settings. The ransom money notes and tricks of obtaining the ransom money amount may differ depending on certain regional (local) setups.

Ransomware injection

As an example:

    Faulty informs about unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the sufferer’s tool. The sharp after that requires the user to pay the ransom.

    Faulty declarations regarding illegal material.

    In countries where software program piracy is much less popular, this method is not as reliable for the cyber fraudulences. Additionally, the Win32/Kryptik.FDUN popup alert might falsely assert to be originating from a police organization and also will report having situated youngster porn or various other unlawful data on the device.

    Win32/Kryptik.FDUN popup alert may incorrectly claim to be acquiring from a legislation enforcement organization and will report having situated kid porn or various other prohibited data on the gadget. The alert will in a similar way contain a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: AC87FBBD
md5: ce4bf30651cb7d4a7894eac252dfb560
name: CE4BF30651CB7D4A7894EAC252DFB560.mlw
sha1: d2ea3df0163fc7d18fbcea43c39b68840071ce87
sha256: 8c0103413a30c2c6899bd929d3aea8dd96da9ce6468d2c074112e025a35642ae
sha512: 6f1f5792978118a5f1fcf921d1d968e84527c7d79568ea223ed85c3bc14f42f62931d322e33c25450c41e67cac4f0d6885a1f12af972e3ca541fb80df2e75e2c
ssdeep: 3072:4UW3+IJivP3tSY5iamCYjniZEZ8TYzfJniU2SAC/P8:69cSF8E2czxnipSAC/P
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

fileversion: 18.72.43.598
filedescription: Baptizers
Translation: 0x0373 0x0170

Win32/Kryptik.FDUN also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 004f589d1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.3976
CynetMalicious (score: 100)
ALYacGen:Variant.Fugrafa.57163
CylanceUnsafe
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Locky.5f947fff
K7GWTrojan ( 004f589d1 )
Cybereasonmalicious.651cb7
ESET-NOD32a variant of Win32/Kryptik.FDUN
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Fugrafa.57163
NANO-AntivirusTrojan.Win32.Encoder.efmnbf
MicroWorld-eScanGen:Variant.Fugrafa.57163
TencentMalware.Win32.Gencirc.114b6e3d
Ad-AwareGen:Variant.Fugrafa.57163
SophosML/PE-A + Mal/Ransom-EE
ComodoMalware@#mg4e77k55jy9
BitDefenderThetaGen:NN.ZexaF.34608.lqW@a0bH6Dai
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPLOCKY.SMBOS
McAfee-GW-EditionBehavesLike.Win32.Adware.ch
FireEyeGeneric.mg.ce4bf30651cb7d4a
EmsisoftGen:Variant.Fugrafa.57163 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1121479
eGambitUnsafe.AI_Score_98%
MicrosoftRansom:Win32/Locky
AegisLabTrojan.Multi.Generic.4!c
GDataGen:Variant.Fugrafa.57163
AhnLab-V3Malware/Win32.Generic.C1517519
McAfeeRansomware-FRV!CE4BF30651CB
MAXmalware (ai score=100)
VBA32Trojan.Encoder
MalwarebytesMalware.Heuristic.1008
PandaTrj/CI.A
TrendMicro-HouseCallRansom_HPLOCKY.SMBOS
RisingRansom.Locky!8.1CD4 (CLOUD)
YandexTrojan.GenAsa!u888mqkPyd8
IkarusTrojan.Win32.Crypt
FortinetW32/Kryptik.FDKV!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HgIASOgA

How to remove Win32/Kryptik.FDUN ransomware?

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.FDUN 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.FDUN 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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