Win32/Kryptik.FNWC

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

What is Win32/Kryptik.FNWC infection?

In this article you will certainly find about the definition of Win32/Kryptik.FNWC as well as its unfavorable effect on your computer. Such ransomware are a type of malware that is specified by on-line fraudulences to demand paying the ransom by a victim.

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In the majority of the instances, Win32/Kryptik.FNWC virus will instruct its sufferers to launch funds transfer for the objective of neutralizing the changes that the Trojan infection has actually presented to the target’s device.

Win32/Kryptik.FNWC 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.
  • 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.

  • 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;
  • 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;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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.
  • Ciphering the papers located on the victim’s disk drive — so the sufferer can no longer use the data;
  • 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.FNWC

One of the most common networks through which Win32/Kryptik.FNWC are injected are:

  • By means of phishing e-mails;
  • As a consequence of user ending up on a source that hosts a malicious software program;

As soon as the Trojan is successfully infused, it will either cipher the information on the sufferer’s PC or prevent the tool from functioning in a correct way – while also placing a ransom note that discusses the need for the targets to effect the settlement for the function of decrypting the documents or recovering the file system back to the initial condition. In most instances, the ransom money note will show up when the client reboots the COMPUTER after the system has already been damaged.

Win32/Kryptik.FNWC distribution channels.

In various edges of the world, Win32/Kryptik.FNWC expands by leaps and bounds. Nonetheless, the ransom notes and techniques of obtaining the ransom money amount might vary relying on specific local (regional) settings. The ransom notes as well as methods of extorting the ransom amount might differ depending on specific local (regional) settings.

Ransomware injection

For instance:

    Faulty notifies regarding unlicensed software application.

    In specific locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s gadget. The sharp then demands the customer to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software application piracy is much less popular, this method is not as reliable for the cyber frauds. Conversely, the Win32/Kryptik.FNWC popup alert may falsely claim to be stemming from a law enforcement organization and will certainly report having located child porn or other illegal data on the gadget.

    Win32/Kryptik.FNWC popup alert might incorrectly assert to be obtaining from a legislation enforcement institution as well as will report having located kid porn or various other illegal data on the gadget. The alert will similarly consist of a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 5CA73630
md5: b1a503f939795dc99ad9327944a58070
name: B1A503F939795DC99AD9327944A58070.mlw
sha1: bea300cd5de065bed89d72370132877405b70175
sha256: b5bfd1ac99d96bd5f5e51aa92d21547b1f27d380b4dd36ad76603beb0ae589ef
sha512: 02a1d6bd651a5bebf3c45f9a447ed2460e48ddc0b4bb4a1eb72c3956a2697e7bdfb6356e2e3868d7b002a52d111fbf5a8639ed201c73966787a56a47399fda29
ssdeep: 6144:znhs7QDx5rbuRyxGasz9BX2yQBjR8Qa4MtFJb0:znmUPCRwGd3XiR8QaNi
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FNWC also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Sphinx.2
CynetMalicious (score: 100)
CAT-QuickHealRansom.Exxroute.A3
ALYacTrojan.Ransom.Spora.Gen.1
CylanceUnsafe
ZillyaTrojan.Zerber.Win32.875
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Cerber.ali1020013
K7GWTrojan ( 0050529f1 )
K7AntiVirusTrojan ( 00515aa21 )
BaiduWin32.Trojan.Kryptik.bif
SymantecRansom.Cerber
ESET-NOD32a variant of Win32/Kryptik.FNWC
APEXMalicious
AvastWin32:GenMalicious-NVN [Trj]
KasperskyHEUR:Trojan-Ransom.Win32.Zerber.vho
BitDefenderTrojan.Ransom.Spora.Gen.1
NANO-AntivirusTrojan.Win32.Zerber.eljfzu
ViRobotTrojan.Win32.C.Agent.243968
SUPERAntiSpywareRansom.Cerber/Variant
MicroWorld-eScanTrojan.Ransom.Spora.Gen.1
TencentMalware.Win32.Gencirc.10bbc47b
Ad-AwareTrojan.Ransom.Spora.Gen.1
SophosMal/Generic-S + Mal/Elenoocka-E
ComodoTrojWare.Win32.Crypt.C@7vajd0
BitDefenderThetaGen:NN.ZexaF.34628.omX@aOunIVo
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CERBER.F117B7
McAfee-GW-EditionBehavesLike.Win32.Ransomware.dc
FireEyeGeneric.mg.b1a503f939795dc9
EmsisoftTrojan.Ransom.Spora.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Zerber.apq
WebrootW32.Ransom.Gen
AviraHEUR/AGEN.1116786
KingsoftWin32.Troj.Generic_a.a.(kcloud)
MicrosoftRansom:Win32/Cerber
AegisLabTrojan.Win32.Zerber.j!c
GDataTrojan.Ransom.Spora.Gen.1
AhnLab-V3Trojan/Win32.Cerber.R194608
Acronissuspicious
McAfeeRansomware-FMJ!B1A503F93979
MAXmalware (ai score=100)
VBA32Hoax.Zerber
MalwarebytesRansom.Cerber
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_CERBER.F117B7
RisingRansom.Cerber!8.3058 (C64:YzY0OrqqNZF4qY1S)
IkarusTrojan-Ransom.Cerber
FortinetW32/Kryptik.GKVH!tr
AVGWin32:GenMalicious-NVN [Trj]
Paloaltogeneric.ml
Qihoo-360Win32/Ransom.Spora.HxQBPGUA

How to remove Win32/Kryptik.FNWC 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.FNWC 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.FNWC 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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