Win32/Kryptik.GDAI

What is Win32/Kryptik.GDAI infection?

In this article you will certainly find regarding the interpretation of Win32/Kryptik.GDAI as well as its unfavorable influence on your computer. Such ransomware are a kind of malware that is specified by on the internet scams to demand paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.GDAI ransomware will instruct its targets to start funds transfer for the function of neutralizing the modifications that the Trojan infection has actually presented to the sufferer’s tool.

Win32/Kryptik.GDAI Summary

These adjustments 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.
  • 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;
  • 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
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Anomalous binary characteristics. This is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Ciphering the papers located on the target’s hard disk drive — so the target can no longer utilize the information;
  • Preventing normal accessibility 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.GDAI

The most common networks where Win32/Kryptik.GDAI Ransomware Trojans are infused are:

  • By ways of phishing e-mails;
  • As an effect of user ending up on a resource that organizes a harmful software application;

As quickly as the Trojan is successfully infused, it will either cipher the data on the sufferer’s PC or avoid the tool from operating in a correct way – while also putting a ransom money note that mentions the requirement for the sufferers to effect the settlement for the objective of decrypting the records or recovering the file system back to the first condition. In many circumstances, the ransom note will certainly show up when the customer restarts the PC after the system has actually currently been harmed.

Win32/Kryptik.GDAI circulation channels.

In numerous corners of the globe, Win32/Kryptik.GDAI grows by jumps as well as bounds. Nevertheless, the ransom notes as well as techniques of extorting the ransom amount might vary relying on certain regional (local) setups. The ransom money notes and techniques of extorting the ransom amount may vary depending on specific regional (local) setups.

Ransomware injection

As an example:

    Faulty notifies concerning unlicensed software program.

    In particular areas, the Trojans usually wrongfully report having discovered some unlicensed applications allowed on the victim’s tool. The sharp after that demands the individual to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software piracy is less prominent, this technique is not as effective for the cyber scams. Additionally, the Win32/Kryptik.GDAI popup alert might wrongly claim to be stemming from a police institution and will report having situated child pornography or various other illegal data on the gadget.

    Win32/Kryptik.GDAI popup alert may wrongly declare to be deriving from a legislation enforcement establishment and also will report having located kid porn or other illegal data on the gadget. The alert will in a similar way contain a demand for the customer to pay the ransom.

Technical details

File Info:

crc32: F83C7F49
md5: b86fa5db761e366c3ce4a1fd4a44b62f
name: B86FA5DB761E366C3CE4A1FD4A44B62F.mlw
sha1: 113d3b66a62edcbc4076c75c8533c6df1df7aff5
sha256: 7ea2f0946f6eb5acb257abf354ac66bff2c0699206f800d2e292d2fe6ccb9ea7
sha512: fe2ae3c6ba9664303812aec8d1210b07cb22550d8d7cf2e8cf0b88c457a563180cde4585fa517db6f116d2cd51bd761a163697af884853e34d545df3153a44d0
ssdeep: 6144:CtBPK8/kELO0B0kp4knnl7KrH1nQQjIQAyTMJwoGV:4BPK8/X/p/lWrHZBjCy4JwoGV
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, ignomfdoudeb
FileVersion: 10.1.10.11
ProductVersion: 10.1.10.11
Translation: 0x0809 0x04b0

Win32/Kryptik.GDAI also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00526cba1 )
Elastic malicious (high confidence)
DrWeb Trojan.Encoder.24384
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ5
ALYac DeepScan:Generic.BrResMon.1.9095A270
Cylance Unsafe
Zillya Trojan.GandCrypt.Win32.51
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/GandCrypt.64922daa
K7GW Trojan ( 00526cba1 )
Cybereason malicious.b761e3
Cyren W32/S-c5d37cab!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GDAI
APEX Malicious
Avast Win32:MalwareX-gen [Trj]
ClamAV Win.Trojan.Emotet-6450257-0
Kaspersky HEUR:Trojan-Ransom.Win32.GandCrypt.gen
BitDefender DeepScan:Generic.BrResMon.1.9095A270
NANO-Antivirus Trojan.Win32.NeutrinoPOS.exyoft
ViRobot Trojan.Win32.Ransom.253440.G
MicroWorld-eScan DeepScan:Generic.BrResMon.1.9095A270
Tencent Trojan.Win32.Gandcrypt.c
Ad-Aware DeepScan:Generic.BrResMon.1.9095A270
Sophos Mal/Generic-S + Mal/GandCrab-B
Comodo TrojWare.Win32.NeutrinoPOS.C@7ise8z
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMG2
McAfee-GW-Edition BehavesLike.Win32.Generic.dc
FireEye Generic.mg.b86fa5db761e366c
Emsisoft DeepScan:Generic.BrResMon.1.9095A270 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.GandCrypt.ao
Avira HEUR/AGEN.1117310
eGambit Unsafe.AI_Score_86%
Microsoft Trojan:Win32/Ursnif.KDS!MTB
Arcabit DeepScan:Generic.BrResMon.1.9095A270
AegisLab Trojan.Win32.GandCrypt.tpix
ZoneAlarm HEUR:Trojan-Ransom.Win32.GandCrypt.gen
GData DeepScan:Generic.BrResMon.1.9095A270
AhnLab-V3 Win-Trojan/MalPe34.Suspicious.X2029
Acronis suspicious
McAfee GenericRXEB-KP!B86FA5DB761E
MAX malware (ai score=98)
VBA32 TrojanBanker.NeutrinoPOS
Malwarebytes Trojan.Bunitu
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMG2
Rising Malware.Obscure/Heur!1.A89E (CLOUD)
Yandex Trojan.GandCrypt!lvoieGgmO84
Ikarus Trojan.Crypt
MaxSecure Ransomeware.CRAB.gen
Fortinet W32/Kryptik.GLKY!tr
AVG Win32:MalwareX-gen [Trj]
Paloalto generic.ml
Qihoo-360 Win32/TrojanPSW.Gozi.HwoCEpsA

How to remove Win32/Kryptik.GDAI 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.GDAI 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.GDAI 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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