Win32/Kryptik.FXCT

What is Win32/Kryptik.FXCT infection?

In this short article you will certainly discover regarding the meaning of Win32/Kryptik.FXCT and its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by online scams to demand paying the ransom by a victim.

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In the majority of the situations, Win32/Kryptik.FXCT virus will instruct its sufferers to start funds move for the purpose of reducing the effects of the amendments that the Trojan infection has actually presented to the target’s device.

Win32/Kryptik.FXCT 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.
  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Detects Sandboxie through the presence of a library;
  • Detects the presence of Wine emulator via function name;
  • 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
  • Exhibits possible ransomware file modification behavior;
  • Attempts to identify installed analysis tools by a known file location;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects the presence of Wine emulator via registry key;
  • Detects Sandboxie using a known mutex;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Checks for a known DeepFreeze Frozen State Mutex;
  • 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 located on the target’s disk drive — so the sufferer can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.FXCT

One of the most normal channels where Win32/Kryptik.FXCT Trojans are infused are:

  • By methods of phishing emails;
  • As a consequence of customer winding up on a resource that organizes a harmful software program;

As soon as the Trojan is efficiently infused, it will certainly either cipher the information on the sufferer’s PC or stop the gadget from operating in a proper way – while also placing a ransom money note that points out the need for the victims to impact the payment for the objective of decrypting the files or bring back the documents system back to the first problem. In many circumstances, the ransom note will show up when the customer restarts the PC after the system has already been harmed.

Win32/Kryptik.FXCT distribution networks.

In different edges of the world, Win32/Kryptik.FXCT grows by leaps and also bounds. Nevertheless, the ransom money notes and also tricks of extorting the ransom amount might vary depending on particular regional (regional) setups. The ransom notes and also tricks of obtaining the ransom quantity might differ depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having discovered some unlicensed applications allowed on the victim’s gadget. The alert then requires the individual to pay the ransom money.

    Faulty statements concerning unlawful content.

    In nations where software piracy is much less prominent, this approach is not as effective for the cyber scams. Alternatively, the Win32/Kryptik.FXCT popup alert may falsely assert to be stemming from a police institution and will report having located kid porn or various other unlawful data on the gadget.

    Win32/Kryptik.FXCT popup alert might falsely assert to be obtaining from a legislation enforcement organization as well as will certainly report having situated youngster pornography or various other illegal data on the device. The alert will in a similar way have a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: EB826B73
md5: ed83c1b427720dcbf26843cb5794d624
name: ED83C1B427720DCBF26843CB5794D624.mlw
sha1: 9f99fb01a0fd008242ab7f577254b0e2dc817fec
sha256: b5c925a68f1359d9792bc6abb7b99856ab15ae5d847391cc2210404f0c22c481
sha512: 3d1421966e8041f62c002f40274019bc438847bbc30fc2e3d69426479dc225b0e8fb68c8f8d1511d1331fc396218731ec409336abd3415cc51d22499132e8a0b
ssdeep: 3072:+LRmF7W8ojW0lJkAl2KX2MfzqPNzSrre61T6HIG2utR6eO:ZxoS0rlRuzWeGT6HIG6F
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FXCT also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051918c1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.11620
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.ZZ6
ALYac Trojan.GenericKDZ.40604
Cylance Unsafe
Zillya Trojan.GenericKDZ.Win32.9406
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Zuepan.e6046ff0
K7GW Trojan ( 0051918c1 )
Cybereason malicious.427720
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FXCT
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Locky-7082144-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.GenericKDZ.40604
NANO-Antivirus Trojan.Win32.Encoder.etafjp
ViRobot Trojan.Win32.Locky.604672.D
MicroWorld-eScan Trojan.GenericKDZ.40604
Tencent Malware.Win32.Gencirc.10ba0f90
Ad-Aware Trojan.GenericKDZ.40604
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Dynamer.FXCT@7akob8
BitDefenderTheta Gen:NN.ZexaF.34628.lqW@a08hGoh
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.Ransomware.cc
FireEye Generic.mg.ed83c1b427720dcb
Emsisoft Trojan-Ransom.Locky (A)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Locky.dmm
Avira HEUR/AGEN.1120889
eGambit Unsafe.AI_Score_99%
Microsoft Trojan:Win32/Zuepan.A
Arcabit Trojan.Generic.D9E9C
GData Trojan.GenericKDZ.40604
AhnLab-V3 Win-Trojan/RansomCrypt.Exp
Acronis suspicious
McAfee Ransom-Locky!ED83C1B42772
MAX malware (ai score=100)
VBA32 Trojan.FakeAV.01657
Malwarebytes Ransom.Locky
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Trojan.Kryptik!1.AE8C (CLASSIC)
Yandex Trojan.GenAsa!8z0Ak9UjeVE
Ikarus Trojan-Ransom.Locky
Fortinet W32/Kryptik.GKNL!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HxQBuCMA

How to remove Win32/Kryptik.FXCT virus?

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.FXCT 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.FXCT 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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