Win32/Kryptik.FWVQ

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

What is Win32/Kryptik.FWVQ infection?

In this post you will locate concerning the meaning of Win32/Kryptik.FWVQ and its unfavorable influence on your computer. Such ransomware are a kind of malware that is specified by on-line frauds to demand paying the ransom money by a victim.

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Most of the instances, Win32/Kryptik.FWVQ ransomware will certainly advise its sufferers to initiate funds move for the function of reducing the effects of the modifications that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.FWVQ Summary

These modifications 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.
  • 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;
  • 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 target can no longer make use of the information;
  • Preventing routine accessibility to the victim’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.FWVQ

One of the most normal networks whereby Win32/Kryptik.FWVQ Ransomware Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of individual winding up on a source that holds a malicious software program;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s PC or avoid the gadget from working in a proper way – while also putting a ransom money note that mentions the demand for the sufferers to impact the repayment for the function of decrypting the documents or bring back the data system back to the initial condition. In the majority of instances, the ransom money note will come up when the client restarts the PC after the system has actually already been damaged.

Win32/Kryptik.FWVQ distribution channels.

In various corners of the globe, Win32/Kryptik.FWVQ grows by jumps and bounds. However, the ransom notes and also tricks of obtaining the ransom quantity may differ depending upon specific local (regional) setups. The ransom money notes and tricks of obtaining the ransom money quantity might vary depending on certain local (local) setups.

Ransomware injection

As an example:

    Faulty signals concerning unlicensed software application.

    In certain areas, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the sufferer’s gadget. The sharp then requires the customer to pay the ransom money.

    Faulty statements about unlawful content.

    In countries where software piracy is much less preferred, this approach is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.FWVQ popup alert may incorrectly declare to be originating from a police establishment and will certainly report having situated kid pornography or other prohibited data on the tool.

    Win32/Kryptik.FWVQ popup alert may falsely claim to be deriving from a regulation enforcement organization as well as will report having situated child pornography or other unlawful data on the tool. The alert will likewise contain a need for the user to pay the ransom.

Technical details

File Info:

crc32: EF048186
md5: a1aed4e3068bf12c54abf68004b5ce65
name: A1AED4E3068BF12C54ABF68004B5CE65.mlw
sha1: 1f0ca23e6f52599d032c826ca6b95a3339850f51
sha256: 39158df19d5a4ae2f21df6fc91eb71e9d56cd2e6eb270ae0a7383f189e8bf4d8
sha512: 0a4d6c2a61d51539b61687eb33e45a06610340e2568f12c15be5c6a5a5c84f6b5d85302b2c0d3047d9bb9d433f1d97bf9cf38b4dfbaf75698228032f3051560a
ssdeep: 3072:XUijdFQDeeeeee0VGZfbrYt0vMBZ/bhicAQ/3:ZMDeeeeee0VG5rYakryQv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FWVQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 005190011 )
Elastic malicious (high confidence)
DrWeb BackDoor.Tofsee.203
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.ZZ6
ALYac Trojan.Ransom.Locky.DN
Malwarebytes Ransom.Cerber
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Tofsee.4df658ac
K7GW Trojan ( 0051775f1 )
Cybereason malicious.3068bf
Cyren W32/S-bdfb9721!Eldorado
ESET-NOD32 a variant of Win32/Kryptik.FWVQ
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Locky-9758290-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.Locky.DN
NANO-Antivirus Trojan.Win32.GenKryptik.esuizw
SUPERAntiSpyware Ransom.Cerber/Variant
MicroWorld-eScan Trojan.Ransom.Locky.DN
Tencent Malware.Win32.Gencirc.11492d04
Ad-Aware Trojan.Ransom.Locky.DN
Comodo TrojWare.Win32.Crypt.C@7vajd0
BitDefenderTheta Gen:NN.ZexaF.34608.mqW@aKThx9f
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.Generic.cc
FireEye Generic.mg.a1aed4e3068bf12c
Emsisoft Trojan.Ransom.Locky.DN (B)
Avira HEUR/AGEN.1120888
eGambit Unsafe.AI_Score_71%
Microsoft Backdoor:Win32/Tofsee.T
AegisLab Trojan.Win32.Generic.4!c
GData Trojan.Ransom.Locky.DN
AhnLab-V3 Win-Trojan/RansomCrypt.Exp
Acronis suspicious
McAfee Ransom-Locky!A1AED4E3068B
MAX malware (ai score=100)
VBA32 Trojan.FakeAV.01657
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Backdoor.Tofsee!8.1E9 (C64:YzY0OohxxYmnDvjV)
SentinelOne Static AI – Malicious PE
Fortinet W32/Kryptik.GKMB!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Locky.HxQBGyUA

How to remove Win32/Kryptik.FWVQ 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.FWVQ 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.FWVQ 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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