Win32/Kryptik.FJEI

What is Win32/Kryptik.FJEI infection?

In this short article you will certainly locate regarding the interpretation of Win32/Kryptik.FJEI as well as its unfavorable effect on your computer. Such ransomware are a kind of malware that is elaborated by on-line fraudulences to demand paying the ransom by a sufferer.

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Most of the situations, Win32/Kryptik.FJEI infection will certainly instruct its victims to start funds move for the function of neutralizing the changes that the Trojan infection has presented to the victim’s gadget.

Win32/Kryptik.FJEI Summary

These alterations 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.
  • 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.

  • A process created a hidden window;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Unconventionial language used in binary resources: Finnish;
  • 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;
  • Attempts to delete volume shadow copies;
  • 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!
  • Exhibits behavior characteristic of Cerber ransomware;
  • 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.

  • 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 files found on the sufferer’s hard disk — so the victim can no more utilize the data;
  • Preventing regular access 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.

Win32/Kryptik.FJEI

One of the most common channels where Win32/Kryptik.FJEI Ransomware Trojans are injected are:

  • By means of phishing emails;
  • As an effect of individual winding up on a resource that hosts a destructive software application;

As soon as the Trojan is successfully injected, it will either cipher the data on the victim’s PC or avoid the device from functioning in an appropriate manner – while additionally placing a ransom note that mentions the requirement for the targets to impact the repayment for the objective of decrypting the records or recovering the file system back to the initial problem. In a lot of instances, the ransom note will certainly turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.FJEI circulation channels.

In different edges of the globe, Win32/Kryptik.FJEI grows by jumps as well as bounds. However, the ransom notes as well as methods of extorting the ransom money amount may differ depending on specific neighborhood (local) setups. The ransom notes and also methods of obtaining the ransom quantity might vary depending on specific local (local) settings.

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software.

    In specific areas, the Trojans typically wrongfully report having detected some unlicensed applications allowed on the sufferer’s tool. The sharp after that requires the user to pay the ransom.

    Faulty statements concerning illegal web content.

    In countries where software piracy is less preferred, this technique is not as reliable for the cyber scams. Alternatively, the Win32/Kryptik.FJEI popup alert may falsely assert to be originating from a police organization as well as will report having situated kid porn or various other prohibited data on the tool.

    Win32/Kryptik.FJEI popup alert might incorrectly claim to be obtaining from a regulation enforcement institution as well as will certainly report having located youngster pornography or various other unlawful data on the device. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 95BF001B
md5: b242913b8e005404debfce167479096f
name: B242913B8E005404DEBFCE167479096F.mlw
sha1: e08056ac62024ca7fc06854ed63b6085f0d5efe8
sha256: 5efe73a20097950b689d201ed5819b4403021a99965d7e6953992d49e41f7a75
sha512: e0b656b8eac88da23f0e69eb467fc483df900c893f64d6c2d2f4203d935593dfac8a98fecf822b36b75ac9df69f557de2f5f6f10f46cf8a71f3130f6f7df4a75
ssdeep: 3072:aR6h73P4Zp8mnqVKSNNd/ODT4fKZcN8fbRIkopW9PgRM+7+eiNVb+LsaALmBxO6:z/9mMKmOvuE3WkopWdsM+7+RNxx6U
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

CompanyName: Adobe Systems Incorporated
Translation: 0x4009 0x04b0

Win32/Kryptik.FJEI also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005224381 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.4691
ClamAV Win.Ransomware.Cerber-5571203-0
CAT-QuickHeal Ransom.Cerber.A4
ALYac Trojan.Ransom.Cerber.BR
Malwarebytes Cerber.Ransom.Encrypt.DDS
Zillya Trojan.Yakes.Win32.60395
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 005224381 )
Cybereason malicious.b8e005
Baidu Win32.Trojan.Kryptik.ayf
Cyren W32/S-4bc29e99!Eldorado
Symantec Packed.Generic.459
ESET-NOD32 a variant of Win32/Kryptik.FJEI
APEX Malicious
Avast Win32:Filecoder-BG [Trj]
Cynet Malicious (score: 100)
Kaspersky Trojan.Win32.Menti.gen
BitDefender Trojan.Ransom.Cerber.BR
NANO-Antivirus Trojan.Win32.Encoder.eraqwz
MicroWorld-eScan Trojan.Ransom.Cerber.BR
Tencent Malware.Win32.Gencirc.10b1c266
Ad-Aware Trojan.Ransom.Cerber.BR
Sophos ML/PE-A + Mal/Cerber-B
Comodo TrojWare.Win32.Miuref.GG@7160kk
BitDefenderTheta AI:Packer.692A8DD621
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMEJ5
McAfee-GW-Edition BehavesLike.Win32.Ransomware.dc
FireEye Generic.mg.b242913b8e005404
Emsisoft Trojan.Ransom.Cerber.BR (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.aljsj
Avira TR/Crypt.XPACK.Gen7
eGambit Unsafe.AI_Score_98%
Microsoft Ransom:Win32/Cerber.F
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan.Win32.Menti.gen
GData Trojan.Ransom.Cerber.BR
AhnLab-V3 Win-Trojan/Lukitus2.Exp
Acronis suspicious
McAfee Ransom-Cerber!B242913B8E00
MAX malware (ai score=99)
VBA32 BScope.Trojan.Encoder
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMEJ5
Rising Trojan.Kryptik!1.AE9C (RDMK:cmRtazo1dYlkOKSd8n6uZnrH8VOd)
Yandex Trojan.GenAsa!PaOpmd9ixsI
Ikarus Trojan-Ransom.Cerber
Fortinet W32/Kryptik.HGZD!tr
AVG Win32:Filecoder-BG [Trj]
Paloalto generic.ml

How to remove Win32/Kryptik.FJEI 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.FJEI 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.FJEI 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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