Win32/Kryptik.GHEO

What is Win32/Kryptik.GHEO infection?

In this short article you will certainly discover regarding the definition of Win32/Kryptik.GHEO as well as its unfavorable influence on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to demand paying the ransom money by a victim.

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In the majority of the instances, Win32/Kryptik.GHEO ransomware will certainly advise its victims to launch funds move for the objective of counteracting the modifications that the Trojan infection has actually presented to the victim’s tool.

Win32/Kryptik.GHEO Summary

These modifications 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;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • 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.

  • 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;
  • 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;
  • 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 files located on the victim’s hard disk drive — so the sufferer can no more make use of the data;
  • Preventing routine access 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.

Win32/Kryptik.GHEO

The most regular channels whereby Win32/Kryptik.GHEO Trojans are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of individual ending up on a source that holds a harmful software application;

As quickly as the Trojan is effectively infused, it will either cipher the data on the sufferer’s computer or stop the gadget from functioning in a correct manner – while additionally placing a ransom note that discusses the requirement for the targets to effect the settlement for the objective of decrypting the files or recovering the file system back to the preliminary condition. In a lot of circumstances, the ransom note will come up when the customer restarts the COMPUTER after the system has currently been damaged.

Win32/Kryptik.GHEO circulation channels.

In numerous edges of the world, Win32/Kryptik.GHEO expands by jumps and also bounds. Nevertheless, the ransom money notes and tricks of extorting the ransom money quantity may differ depending on specific local (local) setups. The ransom money notes and also techniques of obtaining the ransom money quantity might differ depending on particular local (local) setups.

Ransomware injection

For example:

    Faulty notifies about unlicensed software.

    In particular locations, the Trojans frequently wrongfully report having found some unlicensed applications made it possible for on the sufferer’s tool. The sharp then demands the user to pay the ransom.

    Faulty statements concerning prohibited content.

    In nations where software application piracy is less popular, this approach is not as reliable for the cyber frauds. Conversely, the Win32/Kryptik.GHEO popup alert may falsely assert to be originating from a law enforcement establishment as well as will report having located kid porn or various other unlawful data on the gadget.

    Win32/Kryptik.GHEO popup alert may wrongly claim to be acquiring from a legislation enforcement institution and will report having located child porn or various other illegal information on the tool. The alert will similarly contain a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 05D8E80B
md5: 0962bc6948f3100eb0c3a884e0212363
name: 0962BC6948F3100EB0C3A884E0212363.mlw
sha1: e901ffc45a6c359eef400f09de6f31dc23d49484
sha256: 14777bfeb9dadeff1d2c52b73335eb4dfe2c3bf891588b535ce48b3bc3de9a35
sha512: 7d2dcff36225b77a2ee5d4ca9655851c7021a6662b16c49b05f5ccdc32a02718dd5fd7f71253baf9c70b405997b04783d2fdb0b756862f522b3cfc69e96d7edd
ssdeep: 3072:CyQaN3YEEEEEE49n7rFhkCdPas/Pnfz0dDat012HE:Cvor7RhkMj7yau12k
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GHEO also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051918c1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.13570
Cynet Malicious (score: 100)
CAT-QuickHeal Ransom.Exxroute.A4
ALYac Trojan.GenericKDZ.40409
Cylance Unsafe
Zillya Trojan.Cryptor.Win32.168
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Backdoor:Win32/Zuepan.6e452755
K7GW Trojan ( 00516acf1 )
Cybereason malicious.948f31
Cyren W32/Ransom.GS.gen!Eldorado
Symantec Packed.Generic.493
ESET-NOD32 a variant of Win32/Kryptik.GHEO
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Ransomware.Locky-7349718-0
Kaspersky HEUR:Backdoor.Win32.Poison.vho
BitDefender Trojan.GenericKDZ.40409
NANO-Antivirus Trojan.Win32.Refinka.esrdca
SUPERAntiSpyware Ransom.Cerber/Variant
MicroWorld-eScan Trojan.GenericKDZ.40409
Tencent Malware.Win32.Gencirc.11496c29
Ad-Aware Trojan.GenericKDZ.40409
Sophos ML/PE-A + Mal/Elenoocka-E
Comodo TrojWare.Win32.Ransom.Locky.AF@7976es
BitDefenderTheta Gen:NN.ZexaF.34628.pqW@aiIgpUai
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_CERBER.SMALY0
McAfee-GW-Edition BehavesLike.Win32.Emotet.dc
FireEye Generic.mg.0962bc6948f3100e
Emsisoft Trojan.GenericKDZ.40409 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Cryptor.cs
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1120891
eGambit Unsafe.AI_Score_95%
Microsoft Trojan:Win32/Zuepan.A
Arcabit Trojan.Generic.D9DD9
AegisLab Trojan.Win32.Poison.m!c
GData Win32.Trojan.Kryptik.IT
AhnLab-V3 Win-Trojan/Lukitus3.Exp
Acronis suspicious
McAfee Ransomware-GFC!0962BC6948F3
MAX malware (ai score=100)
VBA32 Trojan.FakeAV.01657
Malwarebytes Malware.AI.398314526
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_CERBER.SMALY0
Rising Ransom.Locky!8.1CD4 (CLOUD)
Yandex Trojan.GenAsa!zJjlLm8/zYo
Ikarus Trojan.Win32.Refinka
Fortinet W32/Kryptik.FYKK!tr
AVG Win32:Malware-gen
Qihoo-360 HEUR/QVM20.1.5361.Malware.Gen

How to remove Win32/Kryptik.GHEO ransomware?

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.GHEO 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.GHEO 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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