Win32/Kryptik.FOYM

What is Win32/Kryptik.FOYM infection?

In this short article you will certainly discover concerning the interpretation of Win32/Kryptik.FOYM and its unfavorable impact on your computer. Such ransomware are a kind of malware that is specified by on the internet frauds to require paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.FOYM infection will certainly instruct its victims to initiate funds move for the purpose of neutralizing the amendments that the Trojan infection has actually introduced to the target’s tool.

Win32/Kryptik.FOYM 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.
  • Possible date expiration check, exits too soon after checking local time;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • A process created a hidden window;
  • The executable is compressed using UPX;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Steals private information from local Internet browsers;
  • 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;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers located on the victim’s hard disk drive — so the victim can no longer utilize the information;
  • Preventing normal accessibility 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.FOYM

One of the most regular channels where Win32/Kryptik.FOYM Ransomware are injected 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 an effect of individual ending up on a resource that holds a destructive software;

As quickly as the Trojan is efficiently infused, it will either cipher the data on the victim’s computer or avoid the device from functioning in a correct manner – while likewise putting a ransom note that states the need for the victims to effect the payment for the objective of decrypting the records or restoring the documents system back to the preliminary problem. In the majority of circumstances, the ransom note will certainly show up when the client restarts the COMPUTER after the system has already been harmed.

Win32/Kryptik.FOYM distribution networks.

In numerous edges of the globe, Win32/Kryptik.FOYM expands by leaps and bounds. Nonetheless, the ransom money notes and tricks of obtaining the ransom amount might vary depending upon particular local (local) setups. The ransom money notes and techniques of extorting the ransom quantity might vary depending on specific neighborhood (local) setups.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In certain locations, the Trojans often wrongfully report having actually detected some unlicensed applications made it possible for on the sufferer’s gadget. The alert then requires the user to pay the ransom.

    Faulty statements regarding unlawful content.

    In nations where software piracy is less preferred, this method is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.FOYM popup alert might incorrectly claim to be originating from a police organization and also will report having situated youngster pornography or other unlawful data on the device.

    Win32/Kryptik.FOYM popup alert may incorrectly declare to be deriving from a law enforcement institution and will certainly report having located child porn or various other illegal data on the gadget. The alert will in a similar way include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 8983FCC3
md5: 8a4caff5af8a2593d537e6514b7aca63
name: 8A4CAFF5AF8A2593D537E6514B7ACA63.mlw
sha1: f18a367f7ee3b6408be978e67b8ff7a59185d997
sha256: 8f5e2b0cff1fe2a1dfa0854a24a96803455ea7ffd2e6026099357fa506a49334
sha512: f008c3db7c95403452c2192bca72ee427bcc5d1f14d7626bda42ff8f89e18c43ffa94014702a6b9e7e07275966f937085e39ccd10bb5ba24bf51e58aafded4ac
ssdeep: 3072:rmJclcBAavqout0fb+KK888888888888W88888888888GizGJuud+tft1:r9lLtoS0fbk888888888888W8888888
type: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressed

Version Info:

FileVersion: 51.1052.0.0
FileDescription: Setup/Uninstall
Translation: 0x0000 0x04b0

Win32/Kryptik.FOYM also known as:

GridinSoft Trojan.Ransom.Gen
K7AntiVirus Trojan ( 00506ec31 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.10602
Cynet Malicious (score: 100)
ALYac Gen:Variant.Babar.22538
Malwarebytes Malware.Heuristic.1003
Zillya Trojan.Spora.Win32.962
Sangfor Trojan.Win32.Generic.5
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Spora.bf995aa7
K7GW Trojan ( 00506ec31 )
Cybereason malicious.5af8a2
Symantec Backdoor.Trojan
ESET-NOD32 a variant of Win32/Kryptik.FOYM
APEX Malicious
Avast Win32:Malware-gen
Kaspersky Trojan-Ransom.Win32.Spora.drj
BitDefender Gen:Variant.Babar.22538
NANO-Antivirus Trojan.Win32.Spora.epjfxi
MicroWorld-eScan Gen:Variant.Babar.22538
Tencent Win32.Trojan.Raas.Auto
Ad-Aware Gen:Variant.Babar.22538
Sophos Mal/Generic-S
Comodo Malware@#17n12omwnih4x
BitDefenderTheta Gen:NN.ZexaF.34608.iqKfaiS4otii
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_SPORA.F117ET
McAfee-GW-Edition BehavesLike.Win32.PWSZbot.ch
FireEye Generic.mg.8a4caff5af8a2593
Emsisoft Trojan-Ransom.Spora (A)
SentinelOne Static AI – Suspicious PE
Avira TR/AD.Spora.ljbch
eGambit Unsafe.AI_Score_61%
Microsoft Ransom:Win32/Spora
AegisLab Trojan.Win32.Spora.toS7
ZoneAlarm Trojan-Ransom.Win32.Spora.drj
GData Gen:Variant.Babar.22538
AhnLab-V3 Trojan/Win32.Spora.C1982912
Acronis suspicious
McAfee Artemis!8A4CAFF5AF8A
MAX malware (ai score=86)
VBA32 BScope.TrojanRansom.Spora
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_SPORA.F117ET
Rising Ransom.Spora!8.E3EE (CLOUD)
Yandex Trojan.GenAsa!vJmb3XA0NPA
Ikarus Trojan-PWS.Win32.Zbot
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.FOUQ!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Spora.HgIASOoA

How to remove Win32/Kryptik.FOYM 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.FOYM 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.FOYM 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/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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