Win32/Kryptik.FNYN

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

What is Win32/Kryptik.FNYN infection?

In this short article you will certainly find concerning the definition of Win32/Kryptik.FNYN and its negative influence on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to require paying the ransom by a target.

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In the majority of the cases, Win32/Kryptik.FNYN ransomware will instruct its victims to initiate funds transfer for the function of reducing the effects of the amendments that the Trojan infection has introduced to the sufferer’s gadget.

Win32/Kryptik.FNYN 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.
  • Attempts to connect to a dead IP:Port (4 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.;
  • 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;
  • 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.
  • 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 records found on the victim’s disk drive — so the sufferer can no longer utilize the data;
  • Preventing routine 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.
Similar behavior
Related domains
api.blockcypher.comRansom.Exxroute.A3
btc.blockr.ioRansom.Exxroute.A3
bitaps.comRansom.Exxroute.A3
chain.soRansom.Exxroute.A3
ocsp.digicert.comRansom.Exxroute.A3
p27dokhpz2n7nvgr.1lseoi.topRansom.Exxroute.A3

Win32/Kryptik.FNYN

One of the most typical channels through which Win32/Kryptik.FNYN Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a repercussion of customer ending up on a source that holds a destructive software;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the victim’s computer or stop the gadget from working in a proper manner – while also positioning a ransom money note that states the need for the victims to impact the payment for the objective of decrypting the documents or restoring the documents system back to the first condition. In many circumstances, the ransom money note will certainly turn up when the client reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.FNYN circulation channels.

In numerous edges of the world, Win32/Kryptik.FNYN grows by leaps as well as bounds. However, the ransom notes and methods of obtaining the ransom amount might differ relying on certain neighborhood (regional) setups. The ransom notes and methods of extorting the ransom money amount may vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software program.

    In specific locations, the Trojans frequently wrongfully report having actually discovered some unlicensed applications allowed on the victim’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations about prohibited content.

    In nations where software program piracy is less prominent, this method is not as efficient for the cyber fraudulences. Alternatively, the Win32/Kryptik.FNYN popup alert might falsely assert to be deriving from a law enforcement organization as well as will report having located youngster pornography or other illegal data on the tool.

    Win32/Kryptik.FNYN popup alert might incorrectly assert to be deriving from a legislation enforcement establishment and will report having situated child porn or other illegal information on the gadget. The alert will in a similar way include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: D666DEA9
md5: b2a55149a8e7af63e688ee602e9af112
name: B2A55149A8E7AF63E688EE602E9AF112.mlw
sha1: 03c6d15b47ef87c3dbe401d9170c6c5f1dc84064
sha256: 829cfe44aed6b85ce96dec6dc16bafe840cd6f22211dde61e30100fd4ebe2554
sha512: d5f4b4803852a7c4061240a261e2c88b78b91319b5f5adfb220d063332d71671b5ffdc8f88fa49291d00a86e6e48ed258dc99d22640af6b40bd82e073b229fae
ssdeep: 6144:7Bgd/RLCJgSyGQ9ikA7WVJP1Nh9LvRZiXc0DPF1n:yGgNik6WVJ7DLRZxCn
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FNYN also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 005190011 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.10250
CynetMalicious (score: 100)
CAT-QuickHealRansom.Exxroute.A3
ALYacTrojan.Ransom.Spora.Gen.1
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.2777766
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
K7GWTrojan ( 0050492c1 )
Cybereasonmalicious.9a8e7a
BaiduWin32.Trojan.Kryptik.bjl
CyrenW32/Ransom.DM.gen!Eldorado
SymantecPacked.Generic.493
ESET-NOD32a variant of Win32/Kryptik.FNYN
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Ransomware.Zerber-6814218-0
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Spora.Gen.1
NANO-AntivirusTrojan.Win32.Encoder.evdncm
SUPERAntiSpywareRansom.Cerber/Variant
MicroWorld-eScanTrojan.Ransom.Spora.Gen.1
TencentMalware.Win32.Gencirc.10baaa46
Ad-AwareTrojan.Ransom.Spora.Gen.1
SophosML/PE-A + Mal/Elenoocka-E
ComodoTrojWare.Win32.Crypt.CA@6ykcle
F-SecureTrojan.TR/Crypt.XPACK.Gen8
BitDefenderThetaGen:NN.ZexaF.34686.pqW@a4zRQxhi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPCERBER.SMONT4
McAfee-GW-EditionBehavesLike.Win32.Ransomware.dc
FireEyeGeneric.mg.b2a55149a8e7af63
EmsisoftTrojan.Ransom.Spora.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Zerber.aqs
AviraTR/Crypt.XPACK.Gen8
eGambitUnsafe.AI_Score_99%
MicrosoftRansom:Win32/Cerber.J
ArcabitTrojan.Ransom.Spora.Gen.1
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.Ransom.Spora.Gen.1
AhnLab-V3Trojan/Win32.Generic.C2277354
Acronissuspicious
McAfeeRansomware-FMJ!B2A55149A8E7
MAXmalware (ai score=99)
VBA32BScope.Trojan.Encoder
MalwarebytesRansom.Cerber
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_HPCERBER.SMONT4
RisingMalware.Heuristic!ET#100% (RDMK:cmRtazpSlEkz6UWLnwsSNHmVy+Lx)
YandexTrojan.Agent!Hmpb+bea/xY
IkarusTrojan.Win32.Filecoder
FortinetW32/Kryptik.FOZG!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.FNYN ransomware?

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.FNYN 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.FNYN 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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