Win32/Kryptik.GEWG

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

What is Win32/Kryptik.GEWG infection?

In this post you will certainly locate regarding the interpretation of Win32/Kryptik.GEWG and also its negative effect on your computer system. Such ransomware are a type of malware that is clarified by online scams to require paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.GEWG virus will certainly instruct its victims to initiate funds transfer for the function of counteracting the changes that the Trojan infection has presented to the victim’s gadget.

Win32/Kryptik.GEWG Summary

These adjustments 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 attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Detects Sandboxie through the presence of a library;
  • Deletes its original binary from disk;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • A system process is generating network traffic likely as a result of process injection;
  • 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.
  • Checks the presence of disk drives in the registry, possibly for anti-virtualization;
  • Creates a copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the records found on the sufferer’s hard disk — so the sufferer can no more utilize the data;
  • 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.

Win32/Kryptik.GEWG

One of the most common channels whereby Win32/Kryptik.GEWG Trojans are injected are:

  • By means of phishing e-mails;
  • As an effect of individual winding up on a resource that holds a harmful software;

As quickly as the Trojan is successfully injected, it will certainly either cipher the data on the sufferer’s PC or prevent the device from functioning in an appropriate manner – while likewise placing a ransom money note that mentions the demand for the targets to impact the settlement for the purpose of decrypting the papers or bring back the file system back to the preliminary problem. In the majority of circumstances, the ransom money note will certainly show up when the client reboots the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GEWG circulation channels.

In different edges of the globe, Win32/Kryptik.GEWG expands by jumps and also bounds. Nevertheless, the ransom notes and techniques of extorting the ransom money amount may differ depending on certain local (regional) settings. The ransom money notes and methods of extorting the ransom quantity may vary depending on certain regional (local) settings.

Ransomware injection

For instance:

    Faulty notifies concerning unlicensed software program.

    In specific areas, the Trojans usually wrongfully report having actually detected some unlicensed applications made it possible for on the victim’s tool. The sharp then demands the individual to pay the ransom money.

    Faulty statements regarding unlawful content.

    In countries where software program piracy is less preferred, this method is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.GEWG popup alert might falsely assert to be originating from a law enforcement institution and will report having situated child pornography or other prohibited data on the gadget.

    Win32/Kryptik.GEWG popup alert may wrongly claim to be obtaining from a legislation enforcement organization and will report having located child porn or various other illegal information on the gadget. The alert will similarly include a need for the user to pay the ransom.

Technical details

File Info:

crc32: 575F633F
md5: a3f485234334a2bd5bce8f853f973195
name: A3F485234334A2BD5BCE8F853F973195.mlw
sha1: 1328fcba298473533b8e4846cfc0dedd1e4520d9
sha256: 8e7f2b6ad9835a3eda7c89b28b31855ef1b586b034dd0538996ce3ce5a95fe60
sha512: b2e48cfbd645f88ebfd5ed2c65909c8e4538c5696cb9d1b1eca24326febdce9a1129b68c27e280ba7c1686e51e56015d18b71f7c45374f7be34b577b6915b67d
ssdeep: 3072:5L2vgDYNsJicoZsrR2uik+M4r6X7NzoRy:5L2vvNg+M4O5zo
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GEWG also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware2
K7AntiVirusTrojan ( 0053305e1 )
Elasticmalicious (high confidence)
DrWebTrojan.Encoder.24384
CynetMalicious (score: 100)
CAT-QuickHealTrojan.Chapak.ZZ6
ALYacTrojan.BRMon.Gen.4
CylanceUnsafe
ZillyaTrojan.NeutrinoPOS.Win32.131
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_70% (D)
K7GWTrojan ( 0053305e1 )
Cybereasonmalicious.34334a
CyrenW32/S-01ba2890!Eldorado
SymantecPacked.Generic.525
ESET-NOD32a variant of Win32/Kryptik.GEWG
APEXMalicious
AvastWin32:Malware-gen
KasperskyHEUR:Trojan.Win32.Generic
BitDefenderTrojan.BRMon.Gen.4
NANO-AntivirusTrojan.Win32.NeutrinoPOS.ezdxxr
ViRobotTrojan.Win32.U.Ransom.268296
SUPERAntiSpywareTrojan.Agent/Gen-Kryptik
MicroWorld-eScanTrojan.BRMon.Gen.4
TencentWin32.Trojan.Generic.Loho
Ad-AwareTrojan.BRMon.Gen.4
SophosMal/Generic-S + Mal/GandCrab-D
ComodoTrojWare.Win32.NeutrinoPOS.NS@7ku27j
BitDefenderThetaGen:NN.ZexaF.34678.muW@aiX0lNg
VIPRETrojan.Win32.Generic!BT
TrendMicroRansom_GANDCRAB.SMALY-3
McAfee-GW-EditionBehavesLike.Win32.Generic.ch
FireEyeGeneric.mg.a3f485234334a2bd
EmsisoftTrojan.BRMon.Gen.4 (B)
SentinelOneStatic AI – Suspicious PE
JiangminTrojan.Banker.NeutrinoPOS.de
AviraTR/Crypt.XPACK.Gen7
eGambitUnsafe.AI_Score_99%
MicrosoftTrojan:Win32/Skeeyah.A!rfn
ArcabitTrojan.BRMon.Gen.4
AegisLabTrojan.Win32.NeutrinoPOS.7!c
GDataTrojan.BRMon.Gen.4
TACHYONRansom/W32.Blocker.202240.B
AhnLab-V3Win-Trojan/Gandcrab02.Exp
Acronissuspicious
McAfeePacked-FCS!A3F485234334
MAXmalware (ai score=100)
VBA32BScope.TrojanBanker.NeutrinoPOS
MalwarebytesRansom.GandCrab
PandaTrj/Genetic.gen
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-3
RisingMalware.Strealer!8.1EF (CLOUD)
YandexTrojan.GenAsa!F3ZxDoGRYrA
IkarusTrojan.Crypt
FortinetW32/Kryptik.GVHF!tr
AVGWin32:Malware-gen
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.Generic.HwoCEpsA

How to remove Win32/Kryptik.GEWG 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.GEWG 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.GEWG 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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