Win32/Kryptik.FUSU

Written by Robert Bailey

What is Win32/Kryptik.FUSU infection?

In this post you will discover about the definition of Win32/Kryptik.FUSU and its unfavorable effect on your computer. Such ransomware are a kind of malware that is specified by on-line fraudulences to require paying the ransom money by a target.

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Most of the cases, Win32/Kryptik.FUSU infection will certainly instruct its sufferers to initiate funds move for the function of counteracting the changes that the Trojan infection has actually presented to the victim’s tool.

Win32/Kryptik.FUSU 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.
  • 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 created a hidden window;
  • 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 modify desktop wallpaper;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • 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.
  • Ciphering the files located on the victim’s hard drive — so the sufferer can no more utilize the data;
  • Preventing normal access 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.FUSU

The most normal networks through which Win32/Kryptik.FUSU Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As a repercussion of individual winding up on a source that holds a destructive software application;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s computer or protect against the tool from working in a correct manner – while additionally placing a ransom money note that points out the need for the sufferers to effect the payment for the purpose of decrypting the papers or bring back the documents system back to the initial problem. In a lot of circumstances, the ransom note will certainly come up when the client reboots the PC after the system has actually already been damaged.

Win32/Kryptik.FUSU distribution channels.

In various corners of the globe, Win32/Kryptik.FUSU expands by leaps and bounds. Nevertheless, the ransom money notes and methods of obtaining the ransom money amount may differ relying on certain neighborhood (local) settings. The ransom notes and also techniques of obtaining the ransom quantity may vary depending on certain regional (regional) settings.

Ransomware injection

For instance:

    Faulty alerts about unlicensed software application.

    In certain areas, the Trojans often wrongfully report having actually spotted some unlicensed applications enabled on the sufferer’s gadget. The sharp after that demands the user to pay the ransom.

    Faulty statements about prohibited web content.

    In nations where software piracy is less popular, this approach is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.FUSU popup alert might falsely declare to be originating from a police institution as well as will certainly report having located kid porn or other prohibited data on the tool.

    Win32/Kryptik.FUSU popup alert might wrongly assert to be obtaining from a regulation enforcement organization as well as will certainly report having situated child porn or various other illegal data on the device. The alert will likewise have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 9B852233
md5: de4d384c387372fcf57e208c04888af0
name: DE4D384C387372FCF57E208C04888AF0.mlw
sha1: 02d5555c4bbd4239ea6de6fd1915b593ec49ef47
sha256: 3eda54835e4e83fe797daf8c648694d9bbd1f768f87c8cedd3bad0c73762f15b
sha512: 2fc13791151930dc3e97829ec16d73e91c43fe20b5941be50d48baa5f99427153a0c464b85d84563e2c3056d05ea36d41f1569b20bd36f0db585a7a626c3a3e0
ssdeep: 3072:ASoq1ep7P0mZ49QQB/OS5ni9Q6MOSD3mIz0EJFHpGSwpIJUSV5ryAFDHIJUaovQ:ASoqk49Qs/DY+TJ7twpqJ1jATo07
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FUSU also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00512b831 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.13110
CAT-QuickHeal Ransom.Exxroute.A5
ALYac Trojan.Ransom.BSO
Cylance Unsafe
Zillya Trojan.GenKryptik.Win32.9267
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/generic.ali2000010
K7GW Trojan ( 00512b831 )
Cybereason malicious.c38737
Cyren W32/S-9068a0c9!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.FUSU
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.Ransom.BSO
NANO-Antivirus Trojan.Win32.Zerber.ercthg
MicroWorld-eScan Trojan.Ransom.BSO
Tencent Malware.Win32.Gencirc.10ba6d8a
Ad-Aware Trojan.Ransom.BSO
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Dynamer.FUS@779df7
F-Secure Heuristic.HEUR/AGEN.1109523
BitDefenderTheta Gen:NN.ZexaF.34678.puW@aiUH85ei
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.de4d384c387372fc
Emsisoft Trojan.Ransom.BSO (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Zerber.cwu
Avira HEUR/AGEN.1109523
eGambit Unsafe.AI_Score_84%
Microsoft Ransom:Win32/Cerber
Arcabit Trojan.Ransom.BSO
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Trojan.Ransom.BSO
TACHYON Ransom/W32.Cerber.249856.AE
AhnLab-V3 Trojan/Win32.Cerber.R204904
Acronis suspicious
McAfee Ransomware-GDA!DE4D384C3873
MAX malware (ai score=100)
VBA32 BScope.Trojan.Encoder
Malwarebytes Trojan.MalPack.VAK
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Ransom.Cerber!8.3058 (CLOUD)
Yandex Trojan.GenAsa!YzOBHegLmxQ
Ikarus Trojan.Win32.Filecoder
Fortinet W32/GenKryptik.APXF!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.Generic.HxQBWRsA

How to remove Win32/Kryptik.FUSU 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 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.FUSU 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.FUSU 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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