Ransom:Win32/FileCryptor.K!MTB

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

What is Ransom:Win32/FileCryptor.K!MTB infection?

In this article you will discover regarding the meaning of Ransom:Win32/FileCryptor.K!MTB and its unfavorable influence on your computer system. Such ransomware are a kind of malware that is clarified by on-line fraudulences to require paying the ransom by a target.

GridinSoft Anti-Malware Review
It is better to prevent, than repair and repent!
When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
Gridinsoft Anti-Malware 6-day trial available.
EULA | Privacy Policy | 10% Off Coupon
Subscribe to our Telegram channel to be the first to know about news and our exclusive materials on information security.

Most of the instances, Ransom:Win32/FileCryptor.K!MTB ransomware will instruct its victims to start funds move for the function of counteracting the modifications that the Trojan infection has introduced to the sufferer’s gadget.

Ransom:Win32/FileCryptor.K!MTB Summary

These modifications can be as adheres to:

  • 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 attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Russian;
  • Writes a potential ransom message to disk;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files located on the target’s hard disk drive — so the target can no longer make use of the information;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
z.whorecord.xyzWin32/Trojan.Ransom.74e
a.tomx.xyzWin32/Trojan.Ransom.74e

Ransom:Win32/FileCryptor.K!MTB

One of the most typical channels whereby Ransom:Win32/FileCryptor.K!MTB Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer winding up on a resource that holds a harmful software application;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s computer or stop the gadget from operating in a correct way – while also positioning a ransom money note that discusses the need for the sufferers to impact the settlement for the purpose of decrypting the records or restoring the documents system back to the first condition. In most circumstances, the ransom money note will certainly show up when the customer reboots the COMPUTER after the system has already been harmed.

Ransom:Win32/FileCryptor.K!MTB circulation channels.

In numerous corners of the globe, Ransom:Win32/FileCryptor.K!MTB expands by leaps as well as bounds. Nevertheless, the ransom notes and also techniques of obtaining the ransom money quantity might differ depending on certain local (regional) setups. The ransom money notes and also techniques of obtaining the ransom amount may vary depending on certain local (regional) setups.

Ransomware injection

As an example:

    Faulty alerts concerning unlicensed software program.

    In particular locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s gadget. The sharp then requires the user to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In nations where software program piracy is much less preferred, this method is not as efficient for the cyber fraudulences. Additionally, the Ransom:Win32/FileCryptor.K!MTB popup alert might wrongly declare to be stemming from a law enforcement organization as well as will certainly report having located kid porn or various other prohibited data on the device.

    Ransom:Win32/FileCryptor.K!MTB popup alert might incorrectly assert to be obtaining from a regulation enforcement institution and also will report having located kid porn or other prohibited data on the gadget. The alert will similarly include a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: DEF72235
md5: 01a378b49db5cdae61453520e58fd7a8
name: upload_file
sha1: dc6a61e931d0f74a48b3c38e098f2f28bede28f2
sha256: 04d8109c6c78055d772c01fefe1e5f48a70f2a65535cff17227b5a2c8506b831
sha512: c3dfa6a82591c09f795395e91d160e894f50e85a6ad44808a5d6fcb6a14c78927baaf856d2b0985732de29f5889c8834e6cc2de6e4182007cbc678c0909136f0
ssdeep: 12288:CjEiyrFmeLmbWAUVAyu2kLV13E4PmKvymcesKxt5Z3y+pIhfJhkiMySTXdv5MiW6:sEbfmbWcymjabesKxt5Z3y+pIhfJhkiK
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Ransom:Win32/FileCryptor.K!MTB also known as:

GridinSoftTrojan.Ransom.Gen
Elasticmalicious (high confidence)
MicroWorld-eScanGen:Variant.Barys.62761
Qihoo-360Win32/Trojan.Ransom.74e
ALYacGen:Variant.Barys.62761
CylanceUnsafe
K7AntiVirusRiskware ( 0040eff71 )
BitDefenderGen:Variant.Barys.62761
K7GWRiskware ( 0040eff71 )
Cybereasonmalicious.931d0f
CyrenW32/Filecoder.U.gen!Eldorado
SymantecML.Attribute.HighConfidence
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan-Ransom.Win32.Cryakl.gen
NANO-AntivirusTrojan.Win32.Cryakl.hqhjwt
Ad-AwareGen:Variant.Barys.62761
EmsisoftGen:Variant.Barys.62761 (B)
F-SecureTrojan.TR/FileCryptor.ereit
DrWebTrojan.Encoder.32204
ZillyaTrojan.Cryakl.Win32.500
FireEyeGeneric.mg.01a378b49db5cdae
AviraTR/FileCryptor.ereit
MAXmalware (ai score=89)
Antiy-AVLTrojan[Ransom]/Win32.Cryakl
MicrosoftRansom:Win32/FileCryptor.K!MTB
ArcabitTrojan.Barys.DF529
ZoneAlarmHEUR:Trojan-Ransom.Win32.Cryakl.gen
GDataGen:Variant.Barys.62761
CynetMalicious (score: 90)
ESET-NOD32Win32/Filecoder.EQ
RisingTrojan.Generic@ML.85 (RDMK:p1MFGH+lXMPKhiLNAUsfbQ)
IkarusTrojan-Ransom.FileCrypter
FortinetW32/Filecoder.EQ!tr.ransom
BitDefenderThetaGen:NN.ZelphiF.34566.QGW@aGQOB6mc
AVGWin32:Malware-gen
MaxSecureTrojan.Malware.73995288.susgen

How to remove Ransom:Win32/FileCryptor.K!MTB 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

The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Ransom:Win32/FileCryptor.K!MTB 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 Ransom:Win32/FileCryptor.K!MTB you can always ask me in the comments for getting help.

Sending
User Review
0 (0 votes)
Comments Rating 0 (0 reviews)

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.

Leave a Reply

Sending