Win32/Kryptik.GEVB

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

What is Win32/Kryptik.GEVB infection?

In this post you will certainly discover about the definition of Win32/Kryptik.GEVB and also its unfavorable impact on your computer. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom money by a target.

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In the majority of the instances, Win32/Kryptik.GEVB ransomware will certainly advise its sufferers to initiate funds transfer for the objective of reducing the effects of the changes that the Trojan infection has introduced to the target’s device.

Win32/Kryptik.GEVB Summary

These modifications 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.
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Attempts to connect to a dead IP:Port (5 unique times);
  • Starts servers listening on 127.0.0.1:0;
  • A process created a hidden window;
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • 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;
  • 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 copy of itself;
  • Creates a slightly modified copy of itself;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the files found on the victim’s hard drive — so the sufferer can no longer make use of the data;
  • Preventing normal accessibility to the target’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_GANDCRAB.SMALY-2
a.tomx.xyzRansom_GANDCRAB.SMALY-2
testniche.comRansom_GANDCRAB.SMALY-2
resolver1.opendns.comRansom_GANDCRAB.SMALY-2
myip.opendns.comRansom_GANDCRAB.SMALY-2
f11.karilor.atRansom_GANDCRAB.SMALY-2
worldwidelighting.netRansom_GANDCRAB.SMALY-2
www.worldwidelighting.netRansom_GANDCRAB.SMALY-2
hce-pa.comRansom_GANDCRAB.SMALY-2
abn.zitti.atRansom_GANDCRAB.SMALY-2
centerlessblade.comRansom_GANDCRAB.SMALY-2
chuckyockey.comRansom_GANDCRAB.SMALY-2
msfiscallyfit.comRansom_GANDCRAB.SMALY-2

Win32/Kryptik.GEVB

The most common channels whereby Win32/Kryptik.GEVB Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of customer winding up on a resource that holds a malicious software program;

As quickly as the Trojan is efficiently injected, it will either cipher the information on the target’s computer or avoid the gadget from working in a proper fashion – while likewise putting a ransom money note that points out the demand for the victims to effect the payment for the function of decrypting the papers or recovering the documents system back to the initial problem. In a lot of circumstances, the ransom note will come up when the client restarts the COMPUTER after the system has already been damaged.

Win32/Kryptik.GEVB circulation channels.

In various edges of the globe, Win32/Kryptik.GEVB grows by jumps and bounds. Nonetheless, the ransom money notes and techniques of extorting the ransom quantity may vary relying on certain regional (regional) settings. The ransom money notes and methods of obtaining the ransom money amount might differ depending on certain neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty informs regarding unlicensed software program.

    In certain locations, the Trojans frequently wrongfully report having found some unlicensed applications enabled on the sufferer’s gadget. The sharp then requires the individual to pay the ransom.

    Faulty statements concerning illegal material.

    In countries where software piracy is less preferred, this approach is not as reliable for the cyber scams. Additionally, the Win32/Kryptik.GEVB popup alert may incorrectly declare to be originating from a police organization and also will certainly report having located kid porn or various other prohibited information on the gadget.

    Win32/Kryptik.GEVB popup alert may wrongly assert to be acquiring from a legislation enforcement establishment and also will report having situated youngster pornography or various other unlawful information on the tool. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: 7339D727
md5: 0f8f8141b4680c61c270311841299c11
name: 0F8F8141B4680C61C270311841299C11.mlw
sha1: a152809583683dd8265ea18f39278a941843403b
sha256: 4df4a915e36c8a865416d65891f3e50be275b06d6cb28f580801021933e7a69a
sha512: 9507244c9a9a4fdc0b53d176961cbef84f0db6c1a1bfa6652a51a2992f91e6b55ab9d988448f01e4910dd85b153338794a7f507b5b6b1d3aef4e5a9da94661d7
ssdeep: 6144:2i0Yg4oRxd0GNWyiliZk61yDI2EMVF2TLT2Z46Zz0uDl/FVtY4BsTzXkiRKUjOD:2iZg4otnNWxiZ9YV0TOZ46lbl5YmsTb
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, dogmdgee
InternalName: sgahffjfghj.exe
FileVersion: 1.0.0.2
ProductVersion: 1.0.0.2
Translation: 0x0809 0x04b0

Win32/Kryptik.GEVB also known as:

GridinSoftTrojan.Ransom.Gen
BkavW32.AIDetect.malware1
Elasticmalicious (high confidence)
DrWebBackDoor.IRC.Bot.5041
MicroWorld-eScanTrojan.BRMon.Gen.4
FireEyeGeneric.mg.0f8f8141b4680c61
CAT-QuickHealTrojan.Chapak.ZZ6
ALYacTrojan.BRMon.Gen.4
CylanceUnsafe
VIPRETrojan.Win32.Generic!BT
SangforTrojan.Win32.Save.a
CrowdStrikewin/malicious_confidence_100% (D)
BitDefenderTrojan.BRMon.Gen.4
K7GWTrojan ( 003e58dd1 )
K7AntiVirusTrojan ( 003e58dd1 )
BitDefenderThetaGen:NN.ZexaF.34590.wu0@aSRDQbpi
CyrenW32/Kryptik.DG.gen!Eldorado
SymantecPacked.Generic.525
APEXMalicious
AvastWin32:Malware-gen
ClamAVWin.Dropper.Jimmy-6518211-0
KasperskyHEUR:Trojan.Win32.Generic
NANO-AntivirusTrojan.Win32.Upatre.ezdcak
RisingTrojan.Kryptik!8.8 (CLOUD)
Ad-AwareTrojan.BRMon.Gen.4
SophosMal/Generic-S + Mal/GandCrab-A
ComodoTrojWare.Win32.Crypt.AEG@7ku1nk
F-SecureHeuristic.HEUR/AGEN.1117310
ZillyaTrojan.Miner.Win32.3329
TrendMicroRansom_GANDCRAB.SMALY-2
McAfee-GW-EditionBehavesLike.Win32.Generic.fc
EmsisoftTrojan.BRMon.Gen.4 (B)
IkarusTrojan-Ransom.GandCrab
JiangminTrojan.Banker.Jimmy.eg
eGambitUnsafe.AI_Score_96%
AviraHEUR/AGEN.1117310
Antiy-AVLTrojan/Win32.Miner
MicrosoftTrojan:Win32/Skeeyah.A!rfn
ArcabitTrojan.BRMon.Gen.4
SUPERAntiSpywareBackdoor.Andromeda/Variant
ZoneAlarmHEUR:Trojan.Win32.Generic
GDataTrojan.BRMon.Gen.4
CynetMalicious (score: 100)
AhnLab-V3Win-Trojan/Gandcrab02.Exp
Acronissuspicious
McAfeeGenericRXEK-XA!0F8F8141B468
MAXmalware (ai score=99)
VBA32Trojan.Miner
MalwarebytesTrojan.MalPack
PandaTrj/Genetic.gen
ESET-NOD32a variant of Win32/Kryptik.GEVB
TrendMicro-HouseCallRansom_GANDCRAB.SMALY-2
TencentWin32.Trojan.Generic.Itb
YandexTrojan.GenAsa!p7oGX6mnOWM
SentinelOneStatic AI – Suspicious PE
MaxSecureTrojan.Ransom.GandCrab.Gen
FortinetW32/Kryptik.GKJF!tr
WebrootW32.Trojan.Gen
AVGWin32:Malware-gen
Cybereasonmalicious.1b4680
Paloaltogeneric.ml
Qihoo-360Win32/Trojan.c6e

How to remove Win32/Kryptik.GEVB 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

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.GEVB 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 Win32/Kryptik.GEVB 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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