Win32/Kryptik.GYYR
By John Johnson
What is Win32/Kryptik.GYYR infection?
In this article you will locate about the meaning of Win32/Kryptik.GYYR and also its adverse impact on your computer system. Such ransomware are a form of malware that is elaborated by on-line fraudulences to require paying the ransom by a target.
In the majority of the cases, Win32/Kryptik.GYYR infection will instruct its targets to initiate funds move for the purpose of reducing the effects of the changes that the Trojan infection has presented to the victim’s tool.
Win32/Kryptik.GYYR Summary
These alterations 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.
- 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.
- The executable is compressed using UPX;
- Attempts to delete volume shadow copies;
- 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;
- Uses suspicious command line tools or Windows utilities;
- Ciphering the files located on the sufferer’s hard disk — so the target can no more use the information;
- Preventing regular accessibility to the target’s workstation;
| z.whorecord.xyz | Ransom.Crysis |
| a.tomx.xyz | Ransom.Crysis |
Win32/Kryptik.GYYR
The most typical channels through which Win32/Kryptik.GYYR Ransomware are injected are:
- By means of phishing emails;
- As a repercussion of individual winding up on a source that hosts a malicious software application;
As quickly as the Trojan is efficiently injected, it will either cipher the data on the victim’s PC or protect against the gadget from functioning in a correct manner – while likewise placing a ransom note that discusses the demand for the victims to impact the payment for the objective of decrypting the files or bring back the data system back to the first problem. In a lot of instances, the ransom money note will certainly turn up when the customer restarts the PC after the system has actually currently been harmed.
Win32/Kryptik.GYYR circulation networks.
In various corners of the world, Win32/Kryptik.GYYR expands by leaps as well as bounds. However, the ransom notes and also methods of obtaining the ransom quantity might differ relying on particular regional (regional) setups. The ransom money notes and techniques of extorting the ransom amount may vary depending on particular local (regional) settings.
For example:
Faulty alerts regarding unlicensed software application.
In particular locations, the Trojans usually wrongfully report having found some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the individual to pay the ransom money.
Faulty declarations about unlawful web content.
In nations where software program piracy is much less popular, this technique is not as effective for the cyber fraudulences. Alternatively, the Win32/Kryptik.GYYR popup alert may incorrectly assert to be deriving from a police establishment and also will certainly report having located child porn or other prohibited information on the gadget.
Win32/Kryptik.GYYR popup alert may incorrectly declare to be deriving from a legislation enforcement institution and also will certainly report having situated child pornography or other unlawful information on the gadget. The alert will likewise contain a need for the customer to pay the ransom.
Technical details
File Info:
crc32: 3CA7CECEmd5: b96d7569d68440a9d6fc2f33d8adcae7name: dmx777.exesha1: 6379a05b3645203df1ec815ee5e81e7aa98088e9sha256: 79afaaa7fa75217d4a771f7f83c5ef4ec7b3dcd9e85deb6767933524ef6b9ee7sha512: 3a69754f4884fd9a47e25f2067fcb4e2afbeeedfe3286ed6e1daeacffbf98692bf84ee6abdfcef83d5b7d7192b34c7652adfea6cd67c96c3556febf8d9d7f33essdeep: 6144:pS6MrZzRgkkZ2rorInJp3cSaAQTnoo/75NZ:pkzdk0s0nXc9AQTnoolbtype: PE32 executable (GUI) Intel 80386, for MS Windows, UPX compressedVersion Info:
LegalCopyright: Copyright (c) Omnesys Technologies, Inc.InternalName: 931667FileVersion: 3.8.7.6CompanyName: Omnesys Technologies, Inc.LegalTrademarks: Copyright (c) Omnesys Technologies, Inc.ProductName: 931667ProductVersion: 3.8.7.6FileDescription: Translation Hand Truncatin Counterrotating Clients ServicesTranslation: 0x0409 0x04b0
Win32/Kryptik.GYYR also known as:
| GridinSoft | Trojan.Ransom.Gen |
| MicroWorld-eScan | Trojan.GenericKD.42074338 |
| McAfee | RDN/Generic.tfr |
| ALYac | Trojan.GenericKD.42074338 |
| Malwarebytes | Trojan.MalPack.UPX |
| VIPRE | Trojan.Win32.Generic!BT |
| AegisLab | Trojan.Win32.Malicious.4!c |
| Sangfor | Malware |
| CrowdStrike | win/malicious_confidence_90% (W) |
| BitDefender | Trojan.GenericKD.42074338 |
| K7GW | Trojan ( 0055c8711 ) |
| K7AntiVirus | Trojan ( 0055c8711 ) |
| BitDefenderTheta | Gen:NN.ZexaF.32517.smKfaO2hz1di |
| Symantec | Ransom.Crysis |
| ESET-NOD32 | a variant of Win32/Kryptik.GYYR |
| APEX | Malicious |
| GData | Trojan.GenericKD.42074338 |
| Kaspersky | Trojan.Win32.DelShad.brv |
| Endgame | malicious (moderate confidence) |
| Sophos | Mal/Generic-S |
| F-Secure | |
| DrWeb | Trojan.Encoder.3953 |
| Invincea | heuristic |
| McAfee-GW-Edition | BehavesLike.Win32.Dropper.dc |
| Trapmine | malicious.moderate.ml.score |
| FireEye | Generic.mg.b96d7569d68440a9 |
| Ikarus | Trojan.Win32.Crypt |
| Cyren | W32/Trojan.YUGK-9327 |
| Jiangmin | Trojan.DelShad.lb |
| Webroot | W32.Trojan.GenKD |
| Avira | TR/AD.Crysis.gub |
| MAX | malware (ai score=83) |
| Arcabit | Trojan.Generic.D28200E2 |
| ZoneAlarm | Trojan.Win32.DelShad.brv |
| Microsoft | Trojan:Win32/Tiggre!rfn |
| Ad-Aware | Trojan.GenericKD.42074338 |
| Panda | Trj/CI.A |
| TrendMicro-HouseCall | TROJ_GEN.R03BC0PL219 |
| SentinelOne | DFI – Suspicious PE |
| Fortinet | W32/Kryptik.GVSM!tr |
| AVG | FileRepMalware |
| Cybereason | malicious.b36452 |
| Paloalto | generic.ml |
| Qihoo-360 | Win32/Trojan.ddc |
How to remove Win32/Kryptik.GYYR ransomware?
The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.">2.
Download GridinSoft Anti-Malware.
You can download GridinSoft Anti-Malware by clicking the button below:
Download GridinSoft Anti-MalwareRun the setup file.
When setup file has finished downloading, double-click on the install-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.
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.
Press “Install” button.
Once installed, Anti-Malware will automatically run.
Wait for the Anti-Malware scan to complete.
GridinSoft Anti-Malware will automatically start scanning your system for Win32/Kryptik.GYYR 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.
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.
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 Anti-Malware
If the guide doesn’t help you to remove Win32/Kryptik.GYYR you can always ask me in the comments for getting help.
References
- GridinSoft Anti-Malware Review from HowToFix site:
- More information about GridinSoft products:
