Win32/Kryptik.FXDQ

Written by Robert Bailey

What is Win32/Kryptik.FXDQ infection?

In this article you will certainly find about the interpretation of Win32/Kryptik.FXDQ and its unfavorable effect on your computer. Such ransomware are a form of malware that is elaborated by on-line frauds to require paying the ransom money by a target.

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Most of the cases, Win32/Kryptik.FXDQ infection will certainly advise its targets to launch funds move for the objective of reducing the effects of the modifications that the Trojan infection has actually introduced to the sufferer’s device.

Win32/Kryptik.FXDQ Summary

These adjustments 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 (Process Hollowing);
  • 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.
  • 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;
  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • 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;
  • Enumerates services, possibly for anti-virtualization;
  • Deletes its original binary from disk;
  • Executed a process and injected code into it, probably while unpacking;
  • 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!
  • 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
  • Attempts to interact with an Alternate Data Stream (ADS);
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files situated on the victim’s hard disk — so the sufferer can no longer use the information;
  • Preventing normal access 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.FXDQ

The most common channels through which Win32/Kryptik.FXDQ 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 an effect of individual ending up on a resource that holds a harmful software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the sufferer’s computer or stop the gadget from working in an appropriate way – while additionally positioning a ransom note that discusses the demand for the victims to impact the settlement for the function of decrypting the records or bring back the documents system back to the preliminary problem. In most circumstances, the ransom money note will come up when the customer reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.FXDQ distribution channels.

In different edges of the world, Win32/Kryptik.FXDQ expands by leaps as well as bounds. However, the ransom money notes and techniques of extorting the ransom amount may differ depending upon particular regional (regional) settings. The ransom money notes as well as methods of extorting the ransom quantity may vary depending on specific regional (regional) setups.

Ransomware injection

For example:

    Faulty alerts concerning unlicensed software.

    In particular areas, the Trojans usually wrongfully report having actually discovered some unlicensed applications allowed on the sufferer’s device. The sharp after that demands the individual to pay the ransom.

    Faulty declarations about illegal content.

    In nations where software application piracy is less popular, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.FXDQ popup alert may falsely assert to be stemming from a police institution and also will certainly report having located child porn or various other illegal information on the gadget.

    Win32/Kryptik.FXDQ popup alert might incorrectly declare to be deriving from a legislation enforcement organization as well as will report having located youngster pornography or other unlawful information on the gadget. The alert will in a similar way have a requirement for the user to pay the ransom money.

Technical details

File Info:

crc32: BAA7EF6F
md5: 74c754e68e9af7b0b4119b01e6d9b701
name: 74C754E68E9AF7B0B4119B01E6D9B701.mlw
sha1: 021dd8591d48e43984199771d92c4c3837cbd9be
sha256: 44a624e800809b3b7030331f7f715add03ef06e052cac889a58fb56e81f759ec
sha512: 2391d68132d9efddccc0fc59fd29df18ad151d38a3d45feaab523fc638acf0a666d8700b1f85d210da09bf5c071e93ef73f2a1e807c35bbf0a1ca4747666217e
ssdeep: 1536:d2loAJNdjvvG3P1LbHSFZj5sjujrpjl7803wV54+RtMYKCvcB2baYFTKir:cloAJNdjHGZbyFdyjujor1oc6UaYZ
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FXDQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader25.39385
ClamAV Win.Ransomware.Razy-7131582-0
CAT-QuickHeal Ransom.Exxroute.ZZ6
ALYac Gen:Variant.Razy.563961
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Tofsee.f7c14b3a
K7GW Trojan ( 005190011 )
K7AntiVirus Trojan ( 005190011 )
Cyren W32/Trojan.CFS.gen!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FXDQ
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Refinka.vho
BitDefender Gen:Variant.Razy.563961
NANO-Antivirus Trojan.Win32.Poison.etbcwm
SUPERAntiSpyware Ransom.Cerber/Variant
MicroWorld-eScan Gen:Variant.Razy.563961
Tencent Malware.Win32.Gencirc.10b64afe
Ad-Aware Gen:Variant.Razy.563961
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Ransom.Locky.FXDQ@7aknkt
BitDefenderTheta Gen:NN.ZexaF.34678.iqW@ayp4Did
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.VirRansom.cc
FireEye Generic.mg.74c754e68e9af7b0
Emsisoft Gen:Variant.Razy.563961 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Backdoor.Poison.avi
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1120888
eGambit Unsafe.AI_Score_99%
Microsoft Backdoor:Win32/Tofsee.T
Arcabit Trojan.Razy.D89AF9
GData Win32.Trojan.Kryptik.IY
AhnLab-V3 Win-Trojan/RansomCrypt.Exp
Acronis suspicious
McAfee Ransomware-GHE!74C754E68E9A
MAX malware (ai score=100)
VBA32 Trojan.FakeAV.01657
Malwarebytes Ransom.Locky
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Backdoor.Tofsee!8.1E9 (C64:YzY0OiO/mU/pS2qA)
Yandex Trojan.GenAsa!VW4UFBkMbjo
Ikarus Trojan-Ransom.Locky
Fortinet W32/Kryptik.GKMB!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HxQBEYoA

How to remove Win32/Kryptik.FXDQ 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.FXDQ 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.FXDQ 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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