Win32/Kryptik.FUBV

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

What is Win32/Kryptik.FUBV infection?

In this article you will certainly locate regarding the meaning of Win32/Kryptik.FUBV as well as its negative influence on your computer. Such ransomware are a kind of malware that is clarified by on-line fraudulences to demand paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.FUBV virus will instruct its targets to start funds move for the function of counteracting the amendments that the Trojan infection has presented to the target’s tool.

Win32/Kryptik.FUBV 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Performs some HTTP requests;
  • 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;
  • Deletes its original binary from disk;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • Writes a potential ransom message to disk;
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • Generates some ICMP traffic;
  • 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the records situated on the victim’s disk drive — so the target can no more make use of the information;
  • Preventing routine accessibility to the sufferer’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
z.whorecord.xyzRansom.Cerber.S2636067
a.tomx.xyzRansom.Cerber.S2636067
api.blockcypher.comRansom.Cerber.S2636067
qfjhpgbefuhenjp7.1bxzyr.topRansom.Cerber.S2636067

Win32/Kryptik.FUBV

The most normal channels through which Win32/Kryptik.FUBV Ransomware Trojans are injected are:

  • By methods of phishing emails;
  • As a repercussion of customer ending up on a resource that organizes a harmful software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the data on the sufferer’s computer or avoid the device from functioning in a correct fashion – while additionally putting a ransom money note that states the demand for the sufferers to impact the payment for the function of decrypting the papers or recovering the data system back to the initial problem. In many circumstances, the ransom note will come up when the customer reboots the COMPUTER after the system has already been damaged.

Win32/Kryptik.FUBV distribution channels.

In numerous edges of the world, Win32/Kryptik.FUBV grows by leaps as well as bounds. Nonetheless, the ransom money notes and also methods of obtaining the ransom amount may differ depending upon particular regional (regional) settings. The ransom notes and also methods of extorting the ransom money amount might differ depending on specific local (regional) setups.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having actually spotted some unlicensed applications enabled on the target’s tool. The alert after that demands the individual to pay the ransom money.

    Faulty statements about illegal content.

    In countries where software piracy is less prominent, this method is not as reliable for the cyber scams. Conversely, the Win32/Kryptik.FUBV popup alert might incorrectly declare to be originating from a law enforcement organization and also will certainly report having located youngster pornography or various other unlawful data on the device.

    Win32/Kryptik.FUBV popup alert may wrongly assert to be acquiring from a regulation enforcement organization as well as will certainly report having situated kid pornography or various other prohibited information on the tool. The alert will similarly consist of a need for the user to pay the ransom.

Technical details

File Info:

crc32: 61AA3683
md5: 042d4d0102c010160118176536a284f2
name: 042D4D0102C010160118176536A284F2.mlw
sha1: b24c3b460f22bd98a0ae69263ad28ed8f674d716
sha256: 6a46fcc90eaa1c1b89d3518392a5140b425ae9209ab248d2fe75147795f7e2ad
sha512: 77810113eb8ac449f884cba6ed2152be7f5d6db3ce99b210a67651dd409ede7ab84f42ed15301409ebab4de7ca56f7f3208452a802e46764159621dece60e6b6
ssdeep: 3072:UIZa9xMcb9s9RxObzxawbNAVweZI2/mELeSQhbISXBGrMuQYbIsgTOB:ba9x2BKzkwbNyVR7yXISm5QYbeTOB
type: PE32 executable (GUI) Intel 80386 (stripped to external PDB), for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.FUBV also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
K7AntiVirusTrojan ( 0051134a1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.4691
CAT-QuickHealRansom.Cerber.S2636067
ALYacGen:Variant.Zusy.247646
MalwarebytesMalware.AI.2363800641
ZillyaTrojan.Zerber.Win32.3274
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
AlibabaRansom:Win32/Cerber.49aba10d
K7GWTrojan ( 0051134a1 )
Cybereasonmalicious.102c01
CyrenW32/S-ba429748!Eldorado
SymantecPacked.Generic.493
ESET-NOD32a variant of Win32/Kryptik.FUBV
APEXMalicious
AvastWin32:Trojan-gen
CynetMalicious (score: 100)
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderGen:Variant.Zusy.247646
NANO-AntivirusTrojan.Win32.Zerber.eqrnru
ViRobotTrojan.Win32.Cerber.249856.C
MicroWorld-eScanGen:Variant.Zusy.247646
TencentMalware.Win32.Gencirc.10b2e62c
Ad-AwareGen:Variant.Zusy.247646
ComodoTrojWare.Win32.Crypt.C@7vajd0
BitDefenderThetaGen:NN.ZexaF.34686.pqX@aysJhKpi
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_CERBER.SM3B
McAfee-GW-EditionBehavesLike.Win32.Emotet.dh
FireEyeGeneric.mg.042d4d0102c01016
EmsisoftGen:Variant.Zusy.247646 (B)
SentinelOneStatic AI – Malicious PE
JiangminTrojan.Zerber.cux
AviraHEUR/AGEN.1105007
eGambitUnsafe.AI_Score_63%
MicrosoftRansom:Win32/Cerber
AegisLabTrojan.Win32.Zerber.toXH
GDataGen:Variant.Zusy.247646
AhnLab-V3Trojan/Win32.Cerber.C2028388
Acronissuspicious
McAfeeRansomware-GCB!042D4D0102C0
MAXmalware (ai score=100)
VBA32Trojan-Ransom.Zerber
PandaTrj/GdSda.A
TrendMicro-HouseCallRansom_CERBER.SM3B
RisingRansom.Cerber!8.3058 (TFE:dGZlOgYWtppZMH1eew)
YandexTrojan.GenAsa!3h4peKRWsn8
IkarusTrojan.Crypt
FortinetW32/Agent.CIXD!tr
AVGWin32:Trojan-gen
Paloaltogeneric.ml

How to remove Win32/Kryptik.FUBV 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.FUBV 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.FUBV 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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