Win32/Kryptik.FOZU

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

What is Win32/Kryptik.FOZU infection?

In this post you will certainly find concerning the meaning of Win32/Kryptik.FOZU and its adverse influence on your computer system. Such ransomware are a type of malware that is elaborated by on-line frauds to require paying the ransom by a target.

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Most of the cases, Win32/Kryptik.FOZU ransomware will instruct its sufferers to launch funds transfer for the function of neutralizing the modifications that the Trojan infection has presented to the victim’s gadget.

Win32/Kryptik.FOZU 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.
  • 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 papers found on the victim’s disk drive — so the sufferer can no more make use of the data;
  • Preventing routine accessibility to the sufferer’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.FOZU

The most typical networks whereby Win32/Kryptik.FOZU Ransomware are infused 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 a consequence of customer ending up on a source that holds a harmful software;

As quickly as the Trojan is effectively infused, it will certainly either cipher the information on the victim’s PC or stop the gadget from functioning in a correct way – while also putting a ransom note that points out the demand for the sufferers to effect the repayment for the purpose of decrypting the documents or restoring the documents system back to the preliminary condition. In many instances, the ransom note will turn up when the customer reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.FOZU circulation channels.

In various corners of the globe, Win32/Kryptik.FOZU grows by jumps as well as bounds. However, the ransom notes and also techniques of extorting the ransom amount might vary depending upon specific local (local) settings. The ransom notes and methods of extorting the ransom money quantity might vary depending on certain regional (local) setups.

Ransomware injection

For instance:

    Faulty informs about unlicensed software application.

    In particular locations, the Trojans usually wrongfully report having identified some unlicensed applications made it possible for on the victim’s tool. The alert then demands the customer to pay the ransom.

    Faulty declarations regarding unlawful content.

    In nations where software piracy is less prominent, this method is not as efficient for the cyber fraudulences. Additionally, the Win32/Kryptik.FOZU popup alert may incorrectly assert to be stemming from a police organization and also will report having situated kid porn or various other prohibited information on the device.

    Win32/Kryptik.FOZU popup alert may falsely claim to be acquiring from a law enforcement institution and will report having situated child pornography or various other prohibited data on the tool. The alert will in a similar way include a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: B2A344BC
md5: bdfc6a2f172a91fbab7baa5f14816f72
name: BDFC6A2F172A91FBAB7BAA5F14816F72.mlw
sha1: b4a41bd5d1a6922b59da21356e97f830e2d025ec
sha256: 19e65785549059911db9ad54bbdbb8c4f86d6a4cc6710d8572b81afed213250b
sha512: dfbe5233f70bb2eb593b0ab224641c7c69d377245f82b3f2f684eebcbcbdaed89d8cd31034860dcf661b1efb4aca58bc1dbfe9b3a224e8879a6b41fe0eaa7542
ssdeep: 6144:DLG0nK7YN2SanFN7p9TWqYrAl37wvdDbpxqLGmrn:Ji77JYQOVbOC6
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FOZU also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 005073d51 )
Elasticmalicious (high confidence)
DrWebTrojan.PWS.Papras.2707
CynetMalicious (score: 100)
CAT-QuickHealRansom.Exxroute.A3
ALYacTrojan.Ransom.Spora.Gen.1
CylanceUnsafe
ZillyaTrojan.Kryptik.Win32.1303679
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (W)
AlibabaRansom:Win32/Cerber.db15a5b8
K7GWTrojan ( 005073d51 )
Cybereasonmalicious.f172a9
CyrenW32/Cerber.AN.gen!Eldorado
SymantecPacked.Generic.493
ESET-NOD32a variant of Win32/Kryptik.FOZU
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Ransomware.Cerber-7432369-1
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.Ransom.Spora.Gen.1
NANO-AntivirusTrojan.Win32.Androm.emczdy
MicroWorld-eScanTrojan.Ransom.Spora.Gen.1
TencentMalware.Win32.Gencirc.11495815
Ad-AwareTrojan.Ransom.Spora.Gen.1
SophosML/PE-A + Mal/Elenoocka-E
ComodoTrojWare.Win32.Crypt.CA@6ykcle
BitDefenderThetaGen:NN.ZexaF.34686.pqW@aejBHUi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_HPCERBER.SMONT4
McAfee-GW-EditionBehavesLike.Win32.Ransomware.dc
FireEyeGeneric.mg.bdfc6a2f172a91fb
EmsisoftTrojan.Ransom.Spora.Gen.1 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Generic.btltt
AviraHEUR/AGEN.1105007
eGambitUnsafe.AI_Score_98%
MicrosoftRansom:Win32/Cerber.J
GDataTrojan.Ransom.Spora.Gen.1
AhnLab-V3Trojan/Win32.Cerber.R195959
Acronissuspicious
McAfeeRansomware-FMJ!BDFC6A2F172A
MAXmalware (ai score=100)
VBA32BScope.Backdoor.Tofsee
MalwarebytesRansom.Cerber
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_HPCERBER.SMONT4
RisingRansom.Cerber!8.3058 (CLOUD)
YandexTrojan.GenAsa!v8bn3lTjxXM
IkarusTrojan.Ransom.Spora
FortinetW32/Kryptik.FOZG!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.FOZU 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.FOZU 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:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.FOZU 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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