Win32/Kryptik.FOOY

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

What is Win32/Kryptik.FOOY infection?

In this short article you will discover about the interpretation of Win32/Kryptik.FOOY as well as its adverse impact on your computer system. Such ransomware are a type of malware that is elaborated by online frauds to require paying the ransom by a sufferer.

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Most of the situations, Win32/Kryptik.FOOY virus will advise its sufferers to start funds move for the purpose of counteracting the amendments that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.FOOY 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • A process attempted to delay the analysis task.;
  • 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;
  • Performs some HTTP 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.
  • Attempts to modify desktop wallpaper;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • 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.

  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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 documents located on the target’s hard disk drive — so the sufferer can no more use 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.
Similar behavior
Related domains
z.whorecord.xyz Ransom.Exxroute.A3
a.tomx.xyz Ransom.Exxroute.A3
api.blockcypher.com Ransom.Exxroute.A3
hjhqmbxyinislkkt.1j9r76.top Ransom.Exxroute.A3

Win32/Kryptik.FOOY

The most typical networks through which Win32/Kryptik.FOOY Ransomware are infused are:

  • By methods of phishing emails;
  • As a repercussion of user ending up on a resource that holds a malicious software program;

As quickly as the Trojan is effectively infused, it will certainly either cipher the data on the target’s PC or protect against the tool from functioning in an appropriate manner – while likewise putting a ransom note that mentions the need for the sufferers to impact the payment for the function of decrypting the documents or recovering the data system back to the preliminary problem. In many instances, the ransom note will show up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.FOOY circulation networks.

In different corners of the world, Win32/Kryptik.FOOY expands by jumps and bounds. Nevertheless, the ransom money notes and techniques of obtaining the ransom money amount may differ depending upon certain local (regional) settings. The ransom money notes and also methods of extorting the ransom money amount may differ depending on specific regional (regional) settings.

Ransomware injection

For example:

    Faulty informs about unlicensed software program.

    In certain locations, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the victim’s device. The sharp after that requires the user to pay the ransom.

    Faulty declarations about unlawful content.

    In nations where software piracy is less preferred, this method is not as reliable for the cyber scams. Alternatively, the Win32/Kryptik.FOOY popup alert might falsely assert to be stemming from a law enforcement institution and also will certainly report having located kid pornography or other prohibited data on the tool.

    Win32/Kryptik.FOOY popup alert may wrongly declare to be obtaining from a regulation enforcement institution and will report having situated child pornography or various other prohibited information on the tool. The alert will similarly contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: 719D8D30
md5: a9ac508c8d7af6939596f8c123113ad5
name: A9AC508C8D7AF6939596F8C123113AD5.mlw
sha1: 72ede22244a6815a605d07def92bc622c3d386fa
sha256: a2fe00507f2ed3b511097db106113c5e2fd0e9a389b61436252bbc93730f1cfb
sha512: ad0c15c05ba6c29f33d66dfd68544a5325a1f3eea24a75083ae016fb49a514ef0c896830d2355c55a62a6b24ec83bff485ded2c6c5b5db84a232b9ae2a81cd90
ssdeep: 6144:gCRn+s/pYBaVViIsA5YperEBjEw18qF2yRCE2HxO/:BnbYB8Vrb5YpL8uT2HE
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FOOY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Sphinx.2
MicroWorld-eScan Trojan.Agent.CEAF
FireEye Generic.mg.a9ac508c8d7af693
CAT-QuickHeal Ransom.Exxroute.A3
McAfee Ransomware-FMJ!A9AC508C8D7A
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
Sangfor Trojan.Win32.Save.a
K7AntiVirus Trojan ( 005137001 )
BitDefender Trojan.Agent.CEAF
K7GW Trojan ( 0050636e1 )
Cybereason malicious.c8d7af
BitDefenderTheta Gen:NN.ZexaF.34590.omX@aCzm2Tli
Cyren W32/Ransom.DK.gen!Eldorado
Symantec Packed.Generic.493
APEX Malicious
Avast Win32:Filecoder-AZ [Trj]
ClamAV Win.Ransomware.Cerber-6162277-0
Kaspersky HEUR:Trojan.Win32.Generic
Alibaba Ransom:Win32/generic.ali2000010
NANO-Antivirus Trojan.Win32.Zerber.elriom
Rising Ransom.Cerber!8.3058 (CLOUD)
Ad-Aware Trojan.Agent.CEAF
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Ransom.Lukitos.A@7etman
F-Secure Heuristic.HEUR/AGEN.1116787
Baidu Win32.Trojan.Kryptik.bjk
Zillya Trojan.Kryptik.Win32.1083610
TrendMicro Ransom_CERBER.F117BR
McAfee-GW-Edition BehavesLike.Win32.Ransomware.dc
Emsisoft Trojan-Ransom.Cerber (A)
Ikarus Trojan.Dalexis
Jiangmin Trojan.Spora.bk
Avira HEUR/AGEN.1116787
MAX malware (ai score=82)
Antiy-AVL Trojan/Win32.BTSGeneric
Microsoft Ransom:Win32/Cerber
Arcabit Trojan.Agent.CEAF
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Agent.CEAF
Cynet Malicious (score: 100)
AhnLab-V3 Trojan/Win32.Cerber.R195522
Acronis suspicious
VBA32 BScope.Backdoor.Tofsee
ALYac Trojan.Agent.CEAF
TACHYON Ransom/W32.Cerber.238890
Malwarebytes Ransom.Cerber
Panda Trj/Genetic.gen
ESET-NOD32 a variant of Win32/Kryptik.FOOY
TrendMicro-HouseCall Ransom_CERBER.F117BR
Tencent Malware.Win32.Gencirc.10b6533a
Yandex Trojan.GenAsa!TCKU31FdIgI
SentinelOne Static AI – Malicious PE
eGambit Unsafe.AI_Score_93%
Fortinet W32/Kryptik.FSHI!tr
AVG Win32:Filecoder-AZ [Trj]
Paloalto generic.ml
CrowdStrike win/malicious_confidence_100% (D)
Qihoo-360 Win32/Ransom.Filecoder.HxQBNwcA

How to remove Win32/Kryptik.FOOY 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.FOOY 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.FOOY 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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