Win32/Kryptik.FLZZ

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

What is Win32/Kryptik.FLZZ infection?

In this article you will certainly find concerning the definition of Win32/Kryptik.FLZZ as well as its adverse influence on your computer. Such ransomware are a kind of malware that is specified by on the internet fraudulences to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.FLZZ ransomware will instruct its victims to launch funds transfer for the function of neutralizing the modifications that the Trojan infection has actually introduced to the victim’s tool.

Win32/Kryptik.FLZZ Summary

These modifications 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.
  • 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.
  • 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 stop active services;
  • 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
  • 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.
  • Operates on local firewall’s policies and settings;
  • Creates a copy of itself;
  • Attempts to disable UAC.

    User Account Control or just UAC is a part of the Windows security system which prevents apps from making unwanted changes on PC.

    UAC includes several technologies 1:

    • File and egistry Virtualization;
    • Same-desktop Elevation;
    • Filtered Token;
    • User Interface Privilege Isolation;
    • Protected Mode Internet Explorer;
    • Installer Detection;
  • Attempts to disable Windows Defender;
  • Attempts to modify or disable Security Center warnings;
  • Ciphering the records located on the victim’s hard drive — so the sufferer can no more make use of the information;
  • Preventing routine 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.FLZZ

One of the most regular networks where Win32/Kryptik.FLZZ Ransomware Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of user ending up on a source that hosts a destructive software program;

As quickly as the Trojan is successfully injected, it will either cipher the information on the sufferer’s PC or prevent the gadget from operating in a correct fashion – while also positioning a ransom money note that discusses the requirement for the sufferers to impact the payment for the function of decrypting the files or restoring the file system back to the initial problem. In most circumstances, the ransom money note will come up when the client restarts the PC after the system has actually already been harmed.

Win32/Kryptik.FLZZ distribution networks.

In different edges of the world, Win32/Kryptik.FLZZ expands by jumps and also bounds. However, the ransom notes and methods of obtaining the ransom amount might vary depending upon certain local (regional) setups. The ransom money notes and also tricks of obtaining the ransom money quantity might differ depending on specific local (regional) settings.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software program.

    In certain areas, the Trojans typically wrongfully report having found some unlicensed applications allowed on the target’s tool. The alert after that demands the individual to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In countries where software program piracy is less preferred, this method is not as reliable for the cyber scams. Alternatively, the Win32/Kryptik.FLZZ popup alert may wrongly claim to be deriving from a police institution and will report having located youngster porn or various other unlawful data on the device.

    Win32/Kryptik.FLZZ popup alert may wrongly assert to be acquiring from a regulation enforcement organization and will report having located youngster pornography or various other prohibited information on the tool. The alert will likewise have a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 26B5B93D
md5: 17c7c87e45d3bc60f47d13a42145a88b
name: 17C7C87E45D3BC60F47D13A42145A88B.mlw
sha1: 48d5d3d0f22ed7925bc616159d262ff13286a59b
sha256: b7c716bf49038dcd3bbe982a3f3ca1f9a6bcbb7bb69defa83148fda38905308e
sha512: 08e9dfbf546a072d330d177c7ac59d97cacc74c3d9628aa09af83d9e14d6b2e20166ad68588409842b23ebc77161d55788cd6a4d355b1b540f749c5751a768d7
ssdeep: 3072:5ZSqdcG0TUFn6wm5JIAZxSZnLFBSzHv0YbDRCl44w/q64:9QTAnbm5KnnTGsYRCl4X/0
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FLZZ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Sphinx.2
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.A3
ALYac Gen:Variant.Ransom.Spora.90
Cylance Unsafe
Zillya Trojan.Ramnit.Win32.4070
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba VirTool:Win32/Obfuscator.082f64c8
K7GW Trojan ( 005013f51 )
K7AntiVirus Trojan ( 005013f51 )
Cyren W32/Trojan.AYOW-6247
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FLZZ
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Ramnit-9834599-1
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ransom.Spora.90
NANO-Antivirus Trojan.Win32.Ramnit.ekapwi
SUPERAntiSpyware Trojan.Agent/Gen-Multi
MicroWorld-eScan Gen:Variant.Ransom.Spora.90
Tencent Win32.Trojan.Kryptik.Eadz
Ad-Aware Gen:Variant.Ransom.Spora.90
Sophos Mal/Generic-S + Mal/EncPk-AOP
Comodo TrojWare.Win32.Crypt.C@7vajd0
BitDefenderTheta Gen:NN.ZexaF.34628.jmW@a8evROii
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SM37
McAfee-GW-Edition BehavesLike.Win32.Ransomware.cc
FireEye Generic.mg.17c7c87e45d3bc60
Emsisoft Gen:Variant.Ransom.Spora.90 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Ramnit.k
Avira HEUR/AGEN.1116787
eGambit Unsafe.AI_Score_98%
Kingsoft Win32.Troj.Undef.(kcloud)
Microsoft VirTool:Win32/Obfuscator.ARL
Arcabit Trojan.Ransom.Spora.90
AegisLab Trojan.Win32.Ramnit.4!c
GData Gen:Variant.Ransom.Spora.90
AhnLab-V3 Trojan/Win32.Tuhkit.R192141
Acronis suspicious
McAfee Ransomware-GFM!17C7C87E45D3
MAX malware (ai score=82)
VBA32 BScope.TrojanPSW.Coins
Malwarebytes MachineLearning/Anomalous.100%
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_CERBER.SM37
Rising Trojan.Crypto!8.364 (CLOUD)
Yandex Trojan.GenAsa!vdqirB1b5XY
Ikarus Trojan-Spy.Sharik
Fortinet W32/GenKryptik.APXF!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Generic.HxQB8dsA

How to remove Win32/Kryptik.FLZZ virus?

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 GridinSoft2

There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft3.

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.FLZZ 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.FLZZ you can always ask me in the comments for getting help.

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References

  1. Microsoft Ignite: How to disable User Account Control (UAC) on Windows Server
  2. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  3. 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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