Win32/Kryptik.FYRC

What is Win32/Kryptik.FYRC infection?

In this article you will discover regarding the definition of Win32/Kryptik.FYRC as well as its negative influence on your computer. Such ransomware are a kind of malware that is clarified by on the internet scams to require paying the ransom money by a victim.

In the majority of the situations, Win32/Kryptik.FYRC ransomware will instruct its targets to start funds move for the objective of neutralizing the amendments that the Trojan infection has presented to the target’s device.

Win32/Kryptik.FYRC Summary

These alterations 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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 created a hidden window;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • 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!
  • 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
  • Creates a copy of itself;
  • Exhibits behavior characteristic of Proxyback malware;
  • Ciphering the documents found on the victim’s disk drive — so the target can no more utilize the data;
  • Preventing regular access to the victim’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.FYRC

One of the most regular channels whereby Win32/Kryptik.FYRC are injected are:

  • By means of phishing e-mails;
  • As an effect of customer ending up on a source that organizes a destructive software;

As quickly as the Trojan is efficiently infused, it will either cipher the information on the sufferer’s PC or prevent the tool from operating in an appropriate fashion – while additionally putting a ransom note that points out the demand for the victims to effect the settlement for the purpose of decrypting the documents or bring back the data system back to the first problem. In most circumstances, the ransom note will show up when the client restarts the COMPUTER after the system has already been damaged.

Win32/Kryptik.FYRC circulation networks.

In numerous edges of the globe, Win32/Kryptik.FYRC grows by jumps and also bounds. Nonetheless, the ransom money notes as well as tricks of obtaining the ransom money quantity may vary depending on certain regional (local) settings. The ransom money notes and tricks of obtaining the ransom quantity may vary depending on particular local (regional) settings.

Ransomware injection

For instance:

    Faulty informs about unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having spotted some unlicensed applications made it possible for on the victim’s gadget. The alert then requires the user to pay the ransom.

    Faulty statements concerning illegal content.

    In countries where software program piracy is less preferred, this technique is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.FYRC popup alert might wrongly claim to be deriving from a law enforcement organization as well as will certainly report having situated child pornography or various other illegal data on the device.

    Win32/Kryptik.FYRC popup alert may falsely declare to be deriving from a law enforcement institution and also will certainly report having situated youngster pornography or various other prohibited information on the tool. The alert will similarly contain a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 9702E0CCmd5: ac449f867a01c0cd92bd7aa63f0e69e3name: AC449F867A01C0CD92BD7AA63F0E69E3.mlwsha1: c654be79a046654f52ad67243d2290d0ef20b256sha256: 07c29b2bcbad5652093ad6322a5cde6c1610b45e40753a00df661a19879d258esha512: 59dfeb4f08a16a24eec4a8b09f7a616131e94239cdba99b1d7af82f4e482ef547d3207700c47883c852071407d058dde7e598d0a4d1814e3d48b648b8ebd1855ssdeep: 6144:osHzOY5GLM6i8cjrHEwHdWYMcgZ9wCKtWSRwv3M7AWMqRS3OTHu:lz5Q469CHEYJQyCmW4o87AWMqE3OLutype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright, 2017FileVersion: 47, 2, 1, 50ProductVersion: 47, 2, 1, 50Translation: 0x0409 0x04b0

Win32/Kryptik.FYRC also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0056e9631 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader25.53051
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac Trojan.BRMon.Gen.1
Cylance Unsafe
Zillya Backdoor.Htbot.Win32.44
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Cridex.bd6b02df
K7GW Trojan ( 0056e9631 )
Cybereason malicious.67a01c
Cyren W32/S-3a2ab017!Eldorado
Symantec Infostealer.Pandker!g1
ESET-NOD32 a variant of Win32/Kryptik.FYRC
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BRMon.Gen.1
NANO-Antivirus Trojan.Win32.Htbot.euuvny
SUPERAntiSpyware Backdoor.Andromeda/Variant
MicroWorld-eScan Trojan.BRMon.Gen.1
Tencent Malware.Win32.Gencirc.1149599a
Ad-Aware Trojan.BRMon.Gen.1
Sophos Mal/Generic-S
Comodo TrojWare.Win32.Awkolo.B@7ke8pa
BitDefenderTheta Gen:NN.ZexaF.34670.vq0@aWcne9k
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.fc
FireEye Generic.mg.ac449f867a01c0cd
Emsisoft Trojan.BRMon.Gen.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Scarsi.bcq
Webroot W32.Trojan.GenKD
Avira TR/Crypt.XPACK.Gen7
eGambit Generic.Malware
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Cridex.KPS!MTB
Arcabit Trojan.BRMon.Gen.1
AegisLab Trojan.Multi.Generic.4!c
GData Trojan.BRMon.Gen.1
AhnLab-V3 Trojan/Win32.MalCrypted.R213091
McAfee Trojan-FMGH!AC449F867A01
MAX malware (ai score=99)
VBA32 Backdoor.Htbot
Malwarebytes Ransom.Crysis
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Rising Backdoor.Htbot!8.F02 (C64:YzY0On1hpuXJ9iuX)
Yandex Trojan.GenAsa!sZk8mfJDXM4
Ikarus Trojan.Win32.Crypt
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GSPC!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoC7REA

How to remove Win32/Kryptik.FYRC 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/Kryptik.FYRC you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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