Win32/Kryptik.GPEY

Written by Robert Bailey

What is Win32/Kryptik.GPEY infection?

In this article you will certainly find regarding the meaning of Win32/Kryptik.GPEY as well as its adverse effect on your computer system. Such ransomware are a kind of malware that is elaborated by on the internet scams to require paying the ransom money by a sufferer.

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In the majority of the instances, Win32/Kryptik.GPEY infection will advise its targets to launch funds transfer for the objective of counteracting the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Win32/Kryptik.GPEY 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.
  • A process attempted to delay the analysis task.;
  • Expresses interest in specific running processes;
  • A process created a hidden window;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • 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!
  • 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 CPU name from 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.
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the papers found on the target’s hard drive — so the victim can no more use the information;
  • 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.GPEY

The most typical channels whereby Win32/Kryptik.GPEY Ransomware 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 an effect of individual ending up on a source that organizes a malicious software;

As soon as the Trojan is efficiently injected, it will either cipher the information on the victim’s computer or protect against the tool from working in an appropriate way – while also placing a ransom money note that states the requirement for the victims to impact the repayment for the objective of decrypting the papers or restoring the file system back to the initial problem. In a lot of instances, the ransom note will certainly turn up when the customer reboots the PC after the system has actually already been harmed.

Win32/Kryptik.GPEY distribution channels.

In various corners of the world, Win32/Kryptik.GPEY expands by leaps and bounds. Nevertheless, the ransom notes and also tricks of extorting the ransom money amount may vary depending upon particular neighborhood (regional) settings. The ransom notes and tricks of extorting the ransom amount might differ depending on specific neighborhood (local) settings.

Ransomware injection

As an example:

    Faulty signals about unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having actually identified some unlicensed applications enabled on the sufferer’s tool. The alert after that requires the user to pay the ransom money.

    Faulty statements about prohibited web content.

    In countries where software application piracy is much less prominent, this approach is not as efficient for the cyber frauds. Additionally, the Win32/Kryptik.GPEY popup alert may falsely assert to be originating from a law enforcement institution and also will certainly report having situated child pornography or other unlawful information on the tool.

    Win32/Kryptik.GPEY popup alert might wrongly claim to be deriving from a legislation enforcement institution and also will certainly report having situated kid pornography or various other illegal data on the device. The alert will likewise have a need for the customer to pay the ransom money.

Technical details

File Info:

crc32: 45B740EB
md5: 7a8c1bcf20fa41c7a92ea2e2bcd16e01
name: 7A8C1BCF20FA41C7A92EA2E2BCD16E01.mlw
sha1: 041f9bb46651badac470a5b26636720ff5c48528
sha256: 512935aa5702d79e6321a4cae03144461a5ca1780b166063c47a92772a2ebd95
sha512: 14e0addc14622a66b56d5f67a50249063a096db25e30cb683bc7910bd152a24fd5be7b2a5862ae1c55f852ca9034a0e8658e76412eafaebad481a1d0a849996c
ssdeep: 6144:eHR7cBuH05DvqzsfNvqmRx0ZruIplUwyyUrEdUq3Ml7cK:YR7cBuH05DvqSNvqsYuIrnAYCc
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileVersion: 7.1.5.54
Translation: 0x0169 0x04b0

Win32/Kryptik.GPEY also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00547c951 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader27.23849
Cynet Malicious (score: 100)
ALYac Trojan.BrsecmonE.1
Cylance Unsafe
Zillya Trojan.Chapak.Win32.61777
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Gandcrab.f036e971
K7GW Trojan ( 00547c951 )
Cybereason malicious.f20fa4
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GPEY
APEX Malicious
Avast Win32:TrojanX-gen [Trj]
Kaspersky HEUR:Trojan.Win32.Zenpak.gen
BitDefender Trojan.BrsecmonE.1
NANO-Antivirus Trojan.Win32.Kryptik.fmpchw
MicroWorld-eScan Trojan.BrsecmonE.1
Tencent Win32.Trojan.Zenpak.Ajma
Ad-Aware Trojan.BrsecmonE.1
Sophos Mal/Generic-R + Mal/GandCrab-G
Comodo TrojWare.Win32.Azden.PB@8fhzsu
BitDefenderTheta Gen:NN.ZexaF.34670.uu0@aSoWXwei
VIPRE Trojan.Win32.Generic!BT
TrendMicro Trojan.Win32.SODINOK.SM.hp
McAfee-GW-Edition BehavesLike.Win32.Downloader.fh
FireEye Generic.mg.7a8c1bcf20fa41c7
Emsisoft Trojan.BrsecmonE.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.CryFile.fk
Avira HEUR/AGEN.1141143
eGambit Unsafe.AI_Score_99%
Antiy-AVL Trojan/Win32.Chapak
Microsoft Ransom:Win32/Gandcrab.AHB!MTB
Arcabit Trojan.BrsecmonE.1
AegisLab Trojan.Win32.Zenpak.4!c
GData Trojan.BrsecmonE.1
AhnLab-V3 Win-Trojan/MalPe2.Suspicious.X1937
McAfee Trojan-FPYT!7A8C1BCF20FA
MAX malware (ai score=89)
VBA32 BScope.Trojan.Chapak
Malwarebytes Trojan.MalPack.GS
Panda Trj/GdSda.A
TrendMicro-HouseCall Trojan.Win32.SODINOK.SM.hp
Rising Ransom.GandCrab!8.F355 (CLOUD)
Ikarus Trojan.Dofoil
Fortinet W32/Kryptik.GPMP!tr
AVG Win32:TrojanX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/Ransom.GandCrab.HgIASOUA

How to remove Win32/Kryptik.GPEY virus?

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.GPEY 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.GPEY 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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