Win32/Kryptik.FUMS

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

What is Win32/Kryptik.FUMS infection?

In this short article you will discover concerning the meaning of Win32/Kryptik.FUMS and its unfavorable impact on your computer. Such ransomware are a type of malware that is elaborated by online frauds to require paying the ransom by a target.

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Most of the cases, Win32/Kryptik.FUMS infection will certainly advise its victims to start funds transfer for the objective of reducing the effects of the amendments that the Trojan infection has introduced to the target’s device.

Win32/Kryptik.FUMS Summary

These adjustments 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.
  • Compression (or decompression);
  • 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.

  • Unconventionial language used in binary resources: Danish;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • 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.
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records situated on the victim’s hard disk drive — so the sufferer can no more make use of the information;
  • Preventing regular 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.FUMS

The most normal channels whereby Win32/Kryptik.FUMS Ransomware are injected are:

  • By means of phishing emails;
  • As a repercussion of individual winding up on a resource that holds a destructive software application;

As quickly as the Trojan is effectively injected, it will either cipher the data on the victim’s PC or protect against the gadget from operating in a proper way – while also positioning a ransom money note that discusses the demand for the targets to impact the settlement for the function of decrypting the records or recovering the data system back to the first problem. In many instances, the ransom note will come up when the client reboots the PC after the system has actually currently been harmed.

Win32/Kryptik.FUMS circulation networks.

In different edges of the world, Win32/Kryptik.FUMS grows by jumps and also bounds. However, the ransom notes and also techniques of extorting the ransom money amount might vary depending on particular regional (local) settings. The ransom money notes and tricks of extorting the ransom quantity may differ depending on certain local (regional) setups.

Ransomware injection

For instance:

    Faulty signals about unlicensed software program.

    In specific areas, the Trojans frequently wrongfully report having identified some unlicensed applications enabled on the victim’s gadget. The alert then requires the customer to pay the ransom.

    Faulty statements regarding unlawful web content.

    In nations where software piracy is much less popular, this technique is not as reliable for the cyber fraudulences. Additionally, the Win32/Kryptik.FUMS popup alert might wrongly claim to be originating from a law enforcement institution and also will certainly report having located youngster pornography or various other unlawful data on the tool.

    Win32/Kryptik.FUMS popup alert may falsely assert to be acquiring from a law enforcement organization and will report having situated youngster porn or other illegal information on the tool. The alert will similarly contain a demand for the individual to pay the ransom money.

Technical details

File Info:

crc32: BA3808AF
md5: 00ad994d0dbaddb3c696f10343c52915
name: 00AD994D0DBADDB3C696F10343C52915.mlw
sha1: 5f018cfdb79476274a2aa7fec52bc93a617e7010
sha256: 9fb5d60d85bffe5898962db615c4eb62397a7b145c1231443476b9db2af8891b
sha512: dd3f2942a70d2f94123cf4ced5a133a9f68625061a6cf740988bd32a176f487e9781574acb5d16684e7b50637262bd7cd7a45c842208f3a95e7d6f27bf5a2377
ssdeep: 24576:qFevCe42SK/r+9j1dOpZAD9qetVy6M/J0dLyIRv5kCO2:cQb9Pi9jOpItVy640xyIRvo2
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9. All rights reserved. Company
FileVersion: 3.4.65.6
CompanyName: Company
FileDescription: Nnlinear Sunbeamtech Moblogs
LegalTrademarks: Copyright xa9. All rights reserved. Company
Comments: Nnlinear Sunbeamtech Moblogs
ProductName: Financial
ProductVersion: 3.4.65.6
PrivateBuild: 3.4.65.6
OriginalFilename: Financial.exe
Translation: 0x0406 0x04b0

Win32/Kryptik.FUMS also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0056e9671 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.10507
CynetMalicious (score: 100)
ALYacTrojan.BrsecmonE.1
CylanceUnsafe
ZillyaTrojan.Shade.Win32.621
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_70% (D)
AlibabaRansom:Win32/Shade.974c9a24
K7GWTrojan ( 0056e9671 )
Cybereasonmalicious.d0dbad
SymantecTrojan Horse
ESET-NOD32a variant of Win32/Kryptik.FUMS
APEXMalicious
AvastWin32:Malware-gen
KasperskyTrojan-Ransom.Win32.Shade.nvx
BitDefenderTrojan.BrsecmonE.1
NANO-AntivirusTrojan.Win32.Shade.eqxoum
MicroWorld-eScanTrojan.BrsecmonE.1
TencentWin32.Trojan.Shade.Duz
Ad-AwareTrojan.BrsecmonE.1
SophosMal/Generic-S
ComodoMalware@#18udka4yvhlq5
BitDefenderThetaGen:NN.ZexaF.34690.ev0@a8VkTTkG
VIPRETrojan.Win32.Generic!BT
McAfee-GW-EditionBehavesLike.Win32.Generic.tc
FireEyeGeneric.mg.00ad994d0dbaddb3
EmsisoftTrojan.BrsecmonE.1 (B)
SentinelOneStatic AI – Malicious PE
AviraHEUR/AGEN.1113277
eGambitUnsafe.AI_Score_99%
Antiy-AVLTrojan/Generic.ASMalwS.211EA02
MicrosoftRansom:Win32/Troldesh.E
AegisLabTrojan.Win32.Shade.4!c
GDataTrojan.BrsecmonE.1
Acronissuspicious
McAfeeArtemis!00AD994D0DBA
MAXmalware (ai score=100)
VBA32BScope.TrojanRansom.Foreign
MalwarebytesMachineLearning/Anomalous.100%
PandaTrj/CI.A
RisingRansom.Shade!8.12CC (CLOUD)
YandexTrojan.GenAsa!2ieE07ZslvE
IkarusTrojan.Crypt
FortinetW32/Generic!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.FUMS 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.FUMS 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.FUMS 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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