Win32/Kryptik.GCUD

What is Win32/Kryptik.GCUD infection?

In this article you will certainly discover about the interpretation of Win32/Kryptik.GCUD as well as its unfavorable influence on your computer. Such ransomware are a type of malware that is specified by on-line fraudulences to demand paying the ransom money by a victim.

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In the majority of the cases, Win32/Kryptik.GCUD infection will certainly advise its sufferers to start funds move for the objective of counteracting the changes that the Trojan infection has actually presented to the sufferer’s gadget.

Win32/Kryptik.GCUD Summary

These adjustments can be as complies with:

  • 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 repeatedly call a single API many times in order to delay analysis time. This significantly complicates the work of the virus analyzer. Typical malware tactics!
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the documents found on the sufferer’s hard disk — so the victim can no longer utilize the data;
  • Preventing normal access 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.

Win32/Kryptik.GCUD

One of the most regular networks through which Win32/Kryptik.GCUD Trojans are injected are:

  • By ways of phishing e-mails;
  • As a consequence of customer winding up on a resource that hosts a malicious software program;

As quickly as the Trojan is effectively injected, it will either cipher the information on the target’s computer or protect against the gadget from functioning in an appropriate manner – while additionally putting a ransom money note that discusses the requirement for the victims to effect the payment for the objective of decrypting the records or bring back the file system back to the preliminary condition. In the majority of instances, the ransom note will come up when the client reboots the COMPUTER after the system has actually already been harmed.

Win32/Kryptik.GCUD distribution channels.

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

Ransomware injection

For example:

    Faulty notifies concerning unlicensed software application.

    In specific locations, the Trojans commonly wrongfully report having actually discovered some unlicensed applications made it possible for on the target’s device. The alert after that requires the individual to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software piracy is less popular, this method is not as effective for the cyber scams. Conversely, the Win32/Kryptik.GCUD popup alert might falsely claim to be deriving from a law enforcement establishment and will certainly report having located kid pornography or various other unlawful data on the tool.

    Win32/Kryptik.GCUD popup alert might wrongly assert to be deriving from a regulation enforcement organization and will certainly report having situated child pornography or other unlawful data on the gadget. The alert will likewise contain a need for the individual to pay the ransom.

Technical details

File Info:

crc32: E3D65AD6
md5: 16813298c3c0ed422ba873e9b4b9ecf0
name: 16813298C3C0ED422BA873E9B4B9ECF0.mlw
sha1: f66ef1a845499834ed0084e9cce57705f2c51a70
sha256: 7cb5bc8a4f5a93a559cefc39e99270ab256041269cfcaa7a42b391ff04eb342f
sha512: 669e58c883916da26a40d58d5ca48f80c924d4295a82e5368a521ee38da3f581142f81f7963ad9cbe9b6dbfab3cce0b4fd390df703a3977ee923b1fde15ffb15
ssdeep: 3072:M6jphKJ81D8lxmsmzP1Vhmcasgk6XPvPTxQjNTt10FRtSZUnTAiGT9B79:9pValxmsqNVhmcavZlIf1kj8GTAhZ
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GCUD also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053305e1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24483
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Mauvaise.SL1
ALYac Trojan.BRMon.Gen.3
Cylance Unsafe
Zillya Trojan.GandCrypt.Win32.29
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Gandcrab.5560b88a
K7GW Trojan ( 0053305e1 )
Cybereason malicious.8c3c0e
Cyren W32/S-dea5fd14!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GCUD
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Packed.Gandcrab-6502433-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BRMon.Gen.3
NANO-Antivirus Trojan.Win32.NeutrinoPOS.expauo
ViRobot Trojan.Win32.Agent.248832.F
MicroWorld-eScan Trojan.BRMon.Gen.3
Tencent Malware.Win32.Gencirc.10b73c30
Ad-Aware Trojan.BRMon.Gen.3
Sophos ML/PE-A + Mal/Ransom-FN
Comodo Application.Win32.IStartSurf.PS@8c4m91
BitDefenderTheta Gen:NN.ZexaF.34608.puW@au3z4vh
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMONT
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.16813298c3c0ed42
Emsisoft Trojan.BRMon.Gen.3 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1117310
Microsoft Trojan:Win32/Gandcrab.GM!MTB
Arcabit Trojan.BRMon.Gen.3
AegisLab Trojan.Win32.GandCrypt.j!c
GData Win32.Trojan-Ransom.GandCrab.N
AhnLab-V3 Trojan/Win.MalPe.X2055
Acronis suspicious
McAfee Packed-ZG!16813298C3C0
MAX malware (ai score=95)
VBA32 TrojanBanker.NeutrinoPOS
Malwarebytes Trojan.Bunitu
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMONT
Rising Malware.Strealer!8.1EF (CLOUD)
Ikarus Trojan.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/GenKryptik.BOUD!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HwoCEpsA

How to remove Win32/Kryptik.GCUD 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.GCUD 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.GCUD 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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