Win32/Kryptik.GKEK

What is Win32/Kryptik.GKEK infection?

In this article you will locate about the definition of Win32/Kryptik.GKEK and also its negative effect on your computer. Such ransomware are a kind of malware that is specified by on-line scams to demand paying the ransom money by a victim.

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Most of the cases, Win32/Kryptik.GKEK ransomware will certainly advise its targets to initiate funds move for the function of neutralizing the changes that the Trojan infection has presented to the sufferer’s tool.

Win32/Kryptik.GKEK 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.
  • Injection (inter-process);
  • Injection with CreateRemoteThread in a remote process;
  • Mimics the system’s user agent string for its own requests;
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • Drops a binary and executes it. Trojan-Downloader installs itself to the system and waits until an Internet connection becomes available to connect to a remote server or website in order to download additional malware onto the infected computer.
  • 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;
  • Detects Sandboxie through the presence of a library;
  • Detects the presence of Wine emulator via function name;
  • 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!
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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
  • Attempts to identify installed analysis tools by a known file location;
  • Checks for the presence of known devices from debuggers and forensic tools;
  • Detects the presence of Wine emulator via registry key;
  • Detects Sandboxie using a known mutex;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Checks for a known DeepFreeze Frozen State Mutex;
  • 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.
  • Ciphering the papers situated on the sufferer’s hard disk — so the sufferer can no longer use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.GKEK

The most normal networks where Win32/Kryptik.GKEK Ransomware are injected are:

  • By ways of phishing emails;
  • As a consequence of individual ending up on a source that hosts a malicious software program;

As soon as the Trojan is effectively infused, it will certainly either cipher the information on the target’s computer or protect against the device from working in a correct manner – while additionally putting a ransom note that states the requirement for the sufferers to effect the settlement for the objective of decrypting the papers or recovering the data system back to the first condition. In many circumstances, the ransom note will certainly come up when the customer restarts the COMPUTER after the system has already been harmed.

Win32/Kryptik.GKEK circulation channels.

In various corners of the world, Win32/Kryptik.GKEK expands by leaps as well as bounds. Nevertheless, the ransom money notes and tricks of obtaining the ransom money quantity might vary depending upon particular neighborhood (local) settings. The ransom notes and also methods of extorting the ransom money quantity may differ depending on certain local (regional) settings.

Ransomware injection

For instance:

    Faulty notifies about unlicensed software program.

    In specific locations, the Trojans often wrongfully report having actually found some unlicensed applications allowed on the target’s gadget. The alert after that demands the individual to pay the ransom money.

    Faulty statements concerning unlawful material.

    In countries where software piracy is much less prominent, this method is not as effective for the cyber fraudulences. Alternatively, the Win32/Kryptik.GKEK popup alert might incorrectly assert to be deriving from a police organization as well as will certainly report having located kid pornography or various other illegal data on the gadget.

    Win32/Kryptik.GKEK popup alert might incorrectly claim to be obtaining from a regulation enforcement institution and will certainly report having situated youngster porn or various other prohibited data on the gadget. The alert will likewise consist of a demand for the individual to pay the ransom.

Technical details

File Info:

crc32: 7EAEE2CA
md5: 03a394cbb8cdc478f547c36fc5ab6423
name: 03A394CBB8CDC478F547C36FC5AB6423.mlw
sha1: 6e412c2567533095446a0e0b765f937247754ae0
sha256: a00f332d257bf5230633ea7d2699d1212c0287aae34b83519157f2d1330e7215
sha512: fd9d2747c4d024869ce53613322690edd5cdadaa05e11d3dd94cc660dc6803927bcbdae2f00e5f02472063e77a0085fe97113fdfb12f196b73fcea23e187cc0a
ssdeep: 3072:j+YVXPSR5jV5qL2odEz+4l2b5x/z/w/tPNOndH8IQwMFx5faUG:nV/M50xdWHi/U/tPNOndH8IXefbG
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GKEK also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053b3821 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.24403
Cynet Malicious (score: 100)
ALYac Spyware.Banker.panda
Cylance Unsafe
Zillya Trojan.GenericKD.Win32.166561
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Skeeyah.bc64f0e8
K7GW Trojan ( 0053b3821 )
Cybereason malicious.bb8cdc
Cyren W32/Kryptik.HU.gen!Eldorado
Symantec Trojan Horse
ESET-NOD32 a variant of Win32/Kryptik.GKEK
APEX Malicious
Avast FileRepMalware
ClamAV Win.Malware.Generic-6666638-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Heur.Mint.Titirez.nuW@pOSKuFdG
NANO-Antivirus Trojan.Win32.Panda.fhutkh
SUPERAntiSpyware Ransom.GandCrab/Variant
MicroWorld-eScan Gen:Heur.Mint.Titirez.nuW@pOSKuFdG
Tencent Win32.Trojan.Generic.Eyd
Ad-Aware Gen:Heur.Mint.Titirez.nuW@pOSKuFdG
Sophos Mal/Generic-S + Mal/GandCrab-G
Comodo TrojWare.Win32.TrojanSpy.Ursnif.EM@7vyz23
BitDefenderTheta Gen:NN.ZexaF.34628.nuW@aOSKuFdG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom.Win32.GANDCRAB.SMJC.hp
McAfee-GW-Edition BehavesLike.Win32.Trojan.dc
FireEye Generic.mg.03a394cbb8cdc478
Emsisoft Gen:Heur.Mint.Titirez.nuW@pOSKuFdG (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Chapak.pu
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1106537
eGambit Unsafe.AI_Score_89%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Trojan:Win32/Skeeyah.A!bit
Arcabit Trojan.Mint.Titirez.ED14B2F
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
GData Gen:Heur.Mint.Titirez.nuW@pOSKuFdG
TACHYON Trojan-Spy/W32.Panda.220672
AhnLab-V3 Trojan/Win32.Gandcrab.C2679027
Acronis suspicious
McAfee Trojan-FQPW!03A394CBB8CD
MAX malware (ai score=99)
VBA32 BScope.Trojan.CryptInject
Malwarebytes Trojan.MalPack
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom.Win32.GANDCRAB.SMJC.hp
Rising Ransom.Genasom!8.293 (CLOUD)
Yandex Trojan.GenAsa!EGrmQsTq+mY
Ikarus Trojan.Win32.Danabot
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.CNB!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCzzsA

How to remove Win32/Kryptik.GKEK 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.GKEK 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.GKEK 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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