Win32/Kryptik.FKEN

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

What is Win32/Kryptik.FKEN infection?

In this article you will certainly discover concerning the interpretation of Win32/Kryptik.FKEN and also its adverse effect on your computer. Such ransomware are a form of malware that is clarified by online scams to demand paying the ransom by a victim.

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Most of the situations, Win32/Kryptik.FKEN virus will certainly advise its sufferers to initiate funds move for the function of reducing the effects of the changes that the Trojan infection has actually presented to the target’s gadget.

Win32/Kryptik.FKEN Summary

These adjustments can be as follows:

  • 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.
  • Expresses interest in specific running processes;
  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Attempts to repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Exhibits behavior characteristic of Cerber ransomware;
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Generates some ICMP traffic;
  • 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 files situated on the target’s hard drive — so the victim can no more make use of the data;
  • 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.FKEN

The most regular networks whereby Win32/Kryptik.FKEN are infused are:

  • By means of phishing e-mails;
  • As a repercussion of user winding up on a source that hosts a destructive software;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the target’s PC or avoid the tool from working in a proper manner – while also putting a ransom money note that discusses the requirement for the targets to effect the settlement for the purpose of decrypting the records or recovering the file system back to the preliminary condition. In many circumstances, the ransom money note will show up when the customer restarts the PC after the system has currently been harmed.

Win32/Kryptik.FKEN distribution networks.

In different corners of the world, Win32/Kryptik.FKEN grows by jumps and also bounds. However, the ransom money notes as well as techniques of obtaining the ransom quantity may vary depending upon specific local (regional) setups. The ransom money notes and also tricks of obtaining the ransom money quantity may differ depending on particular regional (local) settings.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having identified some unlicensed applications allowed on the sufferer’s tool. The alert after that demands the user to pay the ransom money.

    Faulty declarations concerning prohibited material.

    In nations where software program piracy is less prominent, this approach is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.FKEN popup alert might incorrectly declare to be stemming from a law enforcement organization and will report having located child pornography or various other illegal information on the gadget.

    Win32/Kryptik.FKEN popup alert may falsely claim to be acquiring from a legislation enforcement establishment and will report having situated youngster porn or other unlawful information on the gadget. The alert will similarly have a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: 2E7D4780
md5: ae24d6ad1d8ec965a4b4eb7a4f5aeb9f
name: AE24D6AD1D8EC965A4B4EB7A4F5AEB9F.mlw
sha1: 85cc1466d00527163cdc6c976e8980dff6a404c2
sha256: 17a768fff1b485012d2b501222200234c3802c9853c253d0de03206e1302953e
sha512: a1e7872ab717f30b827f62e81d7b6a0357ee324299103ca1e030f120ee3a62e81d637958cc546ff68e2daea2674d341dab27c4f2f1a569237d803f0052a5a57a
ssdeep: 12288:fmBOerXHDxg20MSms3sxGKw3genarHXWV:J0/0MSJ3sx2wemHXW
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyrightxa9 2015 IObit. All Rights Reserved.
InternalName: Ahpdate
FileVersion: 3.3.2.133
CompanyName: IObit
LegalTrademarks: IObit
Comments: IObit Ahpdate
ProductName: IObit Ahpdate
ProductVersion: 3.0
FileDescription: IObit Ahpdate
OriginalFilename: Ahpdate.exe
Translation: 0x0409 0x04e4

Win32/Kryptik.FKEN also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0050c0801 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4691
Cynet Malicious (score: 100)
CAT-QuickHeal TrojanDropper.Bunitu.A4
ALYac Trojan.Mint.Zamg.O
Cylance Unsafe
Zillya Trojan.Kryptik.Win32.1319764
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Cerber.b41f3aed
K7GW Trojan ( 004ff7161 )
Cybereason malicious.d1d8ec
Baidu Win32.Trojan.Kryptik.ayf
Cyren W32/Cerber.BF.gen!Eldorado
Symantec Packed.Generic.459
ESET-NOD32 a variant of Win32/Kryptik.FKEN
APEX Malicious
Avast Win32:Filecoder-BG [Trj]
ClamAV Win.Ransomware.Cerber-5970098-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Mint.Zamg.O
NANO-Antivirus Trojan.Win32.Cerber.elwwoi
MicroWorld-eScan Trojan.Mint.Zamg.O
Tencent Malware.Win32.Gencirc.10b4d480
Ad-Aware Trojan.Mint.Zamg.O
Sophos ML/PE-A + Mal/Cerber-K
Comodo TrojWare.Win32.Ransom.Cerber.SD@6pf3lx
BitDefenderTheta Gen:NN.ZexaF.34686.Oq0@a80NUlkj
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPCERBER.SM620
McAfee-GW-Edition BehavesLike.Win32.Ransomware.jh
FireEye Generic.mg.ae24d6ad1d8ec965
Emsisoft Trojan.Mint.Zamg.O (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Generic.bsrdr
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1129194
Microsoft Ransom:Win32/Cerber.F
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan.Win32.Menti.gen
GData Trojan.Mint.Zamg.O
AhnLab-V3 Win-Trojan/RansomCrypt.Gen
McAfee Ransomware-CBER!AE24D6AD1D8E
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Malwarebytes Cerber.Ransom.Encrypt.DDS
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_HPCERBER.SM620
Rising Trojan.Kryptik!1.A7BF (CLOUD)
Yandex Trojan.GenAsa!vjnFiUxG7vs
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.HGZD!tr
AVG Win32:Filecoder-BG [Trj]
Paloalto generic.ml

How to remove Win32/Kryptik.FKEN ransomware?

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.FKEN 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.FKEN 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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