Win32/Kryptik.FOYF

What is Win32/Kryptik.FOYF infection?

In this short article you will locate concerning the definition of Win32/Kryptik.FOYF and also its negative effect on your computer. Such ransomware are a type of malware that is elaborated by online scams to demand paying the ransom money by a sufferer.

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In the majority of the situations, Win32/Kryptik.FOYF infection will certainly advise its sufferers to start funds transfer for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the sufferer’s gadget.

Win32/Kryptik.FOYF Summary

These modifications can be as complies with:

  • 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.
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the files situated on the sufferer’s hard disk drive — so the sufferer can no more make use of the information;
  • Preventing normal accessibility to the victim’s workstation;
Similar behavior
Related domains
z.whorecord.xyz Ransom.Exxroute.A3
a.tomx.xyz Ransom.Exxroute.A3

Win32/Kryptik.FOYF

The most typical networks through which Win32/Kryptik.FOYF Trojans are injected are:

  • By ways of phishing e-mails;
  • As a repercussion of user winding up on a resource that holds a destructive software application;

As soon as the Trojan is efficiently injected, it will certainly either cipher the information on the sufferer’s PC or stop the gadget from operating in a proper manner – while also placing a ransom money note that states the need for the sufferers to effect the payment for the purpose of decrypting the files or recovering the file system back to the first condition. In many circumstances, the ransom money note will show up when the customer reboots the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.FOYF distribution networks.

In different corners of the globe, Win32/Kryptik.FOYF expands by jumps and bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom amount may vary relying on certain neighborhood (regional) settings. The ransom money notes and methods of obtaining the ransom amount may vary depending on specific neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In specific areas, the Trojans commonly wrongfully report having found some unlicensed applications allowed on the target’s gadget. The alert after that requires the individual to pay the ransom.

    Faulty declarations regarding prohibited material.

    In nations where software piracy is much less prominent, this method is not as effective for the cyber fraudulences. Alternatively, the Win32/Kryptik.FOYF popup alert may incorrectly claim to be stemming from a police organization as well as will report having situated child pornography or various other illegal data on the tool.

    Win32/Kryptik.FOYF popup alert might incorrectly claim to be deriving from a regulation enforcement organization and will report having located youngster porn or various other illegal information on the tool. The alert will similarly consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 32C34814
md5: bdde9999b3f2420746b96b943610b231
name: BDDE9999B3F2420746B96B943610B231.mlw
sha1: 6264099ebcb30e020921ea9432b49de3f2aabdde
sha256: 1297f1dcdcf475efebafde0f345fce2da5a006f0817b96003025674b5e36b84b
sha512: c5868f3521a9c2fe8f3d0b84a518dba72afe96333f382fbbf055d76cd72c6f786500ee38d97aa9064c17d7265b5cfa5246226acf3a63e4b94c53060c16624e83
ssdeep: 1536:eUkp9s5Zk/ja8giYKPdzgSyeP4ZtYBphBFR4:eiZZNSPNgSyeQGDR
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FOYF also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005137001 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Sphinx.2
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.A3
ALYac Gen:Variant.Razy.140006
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Spora.84b16846
K7GW Trojan ( 005137001 )
Cybereason malicious.9b3f24
Cyren W32/Spora.D.gen!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FOYF
APEX Malicious
Avast Win32:Filecoder-AY [Trj]
ClamAV Win.Ransomware.Razy-6903617-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Razy.140006
NANO-Antivirus Trojan.Win32.Sphinx.evplqm
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
MicroWorld-eScan Gen:Variant.Razy.140006
Tencent Malware.Win32.Gencirc.10b67424
Ad-Aware Gen:Variant.Razy.140006
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Crypt.C@7vajd0
BitDefenderTheta Gen:NN.ZexaF.34686.gmW@a4MMCZl
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SM37
McAfee-GW-Edition BehavesLike.Win32.Autorun.cm
FireEye Generic.mg.bdde9999b3f24207
Emsisoft Gen:Variant.Razy.140006 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Spora.qs
Avira HEUR/AGEN.1116786
eGambit Unsafe.AI_Score_98%
Microsoft Ransom:Win32/Spora.A
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Razy.140006
AhnLab-V3 Trojan/Win32.Spora.R195937
Acronis suspicious
McAfee Ransomware-FMJ!BDDE9999B3F2
MAX malware (ai score=100)
VBA32 BScope.TrojanPSW.Sphinx
Malwarebytes Cerber.Ransom.Encrypt.DDS
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SM37
Rising Ransom.Cerber!8.3058 (CLOUD)
Yandex Trojan.GenAsa!chThSBOeGTc
Ikarus Trojan-Ransom.Cerber
Fortinet W32/Kryptik.FOYF!tr
AVG Win32:Filecoder-AY [Trj]
Paloalto generic.ml

How to remove Win32/Kryptik.FOYF 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.FOYF 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.FOYF 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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