Win32/Kryptik.GIRS

What is Win32/Kryptik.GIRS infection?

In this article you will certainly discover concerning the interpretation of Win32/Kryptik.GIRS and its adverse impact on your computer system. Such ransomware are a kind of malware that is clarified by on-line frauds to require paying the ransom money by a sufferer.

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Most of the situations, Win32/Kryptik.GIRS infection will certainly advise its sufferers to launch funds transfer for the objective of neutralizing the amendments that the Trojan infection has introduced to the sufferer’s device.

Win32/Kryptik.GIRS Summary

These modifications 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.
  • A process attempted to delay the analysis task.;
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Unconventionial language used in binary resources: Estonian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Detects Sandboxie through the presence of a library;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • 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 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 presence of disk drives in the 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.
  • Ciphering the records situated on the victim’s hard disk drive — so the target can no longer use the data;
  • Preventing normal 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.GIRS

The most typical networks through which Win32/Kryptik.GIRS Ransomware are injected are:

  • By ways of phishing e-mails;
  • As an effect of individual winding up on a source that organizes a malicious software application;

As soon as the Trojan is efficiently injected, it will either cipher the data on the target’s PC or stop the gadget from working in a correct manner – while additionally positioning a ransom money note that points out the need for the victims to impact the payment for the function of decrypting the papers or recovering the documents system back to the initial condition. In most circumstances, the ransom note will certainly turn up when the customer reboots the COMPUTER after the system has currently been harmed.

Win32/Kryptik.GIRS circulation networks.

In different corners of the globe, Win32/Kryptik.GIRS expands by leaps and also bounds. However, the ransom notes as well as methods of obtaining the ransom money amount may differ depending on particular neighborhood (regional) settings. The ransom money notes and also techniques of obtaining the ransom quantity may differ depending on particular local (local) settings.

Ransomware injection

As an example:

    Faulty alerts regarding unlicensed software.

    In specific areas, the Trojans frequently wrongfully report having actually detected some unlicensed applications allowed on the sufferer’s gadget. The alert after that demands the customer to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software application piracy is much less prominent, this approach is not as reliable for the cyber frauds. Additionally, the Win32/Kryptik.GIRS popup alert may incorrectly declare to be deriving from a law enforcement organization and will certainly report having located child porn or other prohibited information on the tool.

    Win32/Kryptik.GIRS popup alert may wrongly declare to be deriving from a regulation enforcement establishment and will certainly report having situated child pornography or various other prohibited data on the gadget. The alert will in a similar way consist of a demand for the user to pay the ransom money.

Technical details

File Info:

crc32: 433571B7
md5: 43c7c3b11660ad7fa50cb92efa8e020f
name: 43C7C3B11660AD7FA50CB92EFA8E020F.mlw
sha1: d626adc143e0d6b9609fd8ff6fdb6afb61cf18eb
sha256: 7492fe8e1d8c988da6377cb683528b82f9350cc2c7b51387c94cddc0365c5670
sha512: 42c9741ecaf978f0a0689dddc8717d39ae4c9218b6cdf09a7c7026062c82ac807dd71972be910ff52d05f1f26693ee8b10ec8f9033794cd3a4cc3b36deba56a0
ssdeep: 3072:bfDCoYP6p2UsKh/aN+WISRhAl6utBZAQ0MxQSTDv:CzKaNrwztBZAAQSTDv
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.GIRS also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.Common.BA5EFAAF
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Stealer.23950
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ6
McAfee GenericRXGC-SA!43C7C3B11660
Cylance Unsafe
Zillya Backdoor.Mokes.Win32.1300
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
K7GW Trojan ( 0053a0bc1 )
K7AntiVirus Trojan ( 00543e471 )
NANO-Antivirus Trojan.Win32.Coins.fffeox
Cyren W32/S-38342d72!Eldorado
ESET-NOD32 a variant of Win32/Kryptik.GIRS
APEX Malicious
Avast FileRepMalware
BitDefender Trojan.Mint.Jamg.C
ViRobot Trojan.Win32.U.GandCrab.259584
SUPERAntiSpyware Trojan.Agent/Gen-Kryptik
MicroWorld-eScan Trojan.Mint.Jamg.C
Tencent Win32.Trojan.Generic.Pdml
Ad-Aware Trojan.Mint.Jamg.C
Sophos Mal/Generic-S + Mal/GandCrab-B
Comodo TrojWare.Win32.Cloxer.FH@7qp6cw
BitDefenderTheta Gen:NN.ZexaF.34670.nuW@aGhB5kgI
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_GANDCRAB.SMALY-3
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
Emsisoft Trojan.Mint.Jamg.C (B)
SentinelOne Static AI – Suspicious PE
F-Prot W32/S-38342d72!Eldorado
Jiangmin Trojan.GandCrypt.gx
Avira HEUR/AGEN.1106533
Antiy-AVL Trojan[Backdoor]/Win32.Mokes
Arcabit Trojan.Mint.Jamg.C
AegisLab Trojan.Multi.Generic.4!c
ZoneAlarm HEUR:Trojan.Win32.Generic
AhnLab-V3 Win-Trojan/Gandcrab04.Exp
Acronis suspicious
VBA32 BScope.Trojan.Vigorf
Malwarebytes Trojan.MalPack
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_GANDCRAB.SMALY-3
Rising Backdoor.Mokes!8.619 (CLOUD)
Yandex Trojan.GenAsa!TGoWDh37vic
Ikarus Trojan.Win32.Danabot
eGambit Unsafe.AI_Score_99%
Fortinet W32/Kryptik.GUKZ!tr
AVG FileRepMalware
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Generic.HwoCEpsA

How to remove Win32/Kryptik.GIRS 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.GIRS 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.GIRS 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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