Win32/Kryptik.GCLG

Written by Robert Bailey

What is Win32/Kryptik.GCLG infection?

In this short article you will certainly discover regarding the meaning of Win32/Kryptik.GCLG as well as its adverse impact on your computer system. Such ransomware are a kind of malware that is specified by on the internet fraudulences to demand paying the ransom by a sufferer.

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Most of the situations, Win32/Kryptik.GCLG virus will instruct its victims to start funds transfer for the function of reducing the effects of the modifications that the Trojan infection has introduced to the sufferer’s gadget.

Win32/Kryptik.GCLG 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Attempts to connect to a dead IP:Port (1 unique times);
  • 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.
  • Repeatedly searches for a not-found process, may want to run with startbrowser=1 option;
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Hebrew;
  • 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;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • 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!
  • 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 papers situated on the victim’s hard drive — so the victim can no more make use of the information;
  • Preventing routine access to the victim’s workstation. This is the typical behavior of a virus called locker. It blocks access to the computer until the victim pays the ransom.
Similar behavior
Related domains
www.bing.com TrojWare.Win32.Ransom.Foreign.A@7i19jk

Win32/Kryptik.GCLG

One of the most normal networks where Win32/Kryptik.GCLG Ransomware Trojans are injected are:

  • By ways of phishing emails;
  • As a repercussion of user winding up on a resource that hosts a harmful software;

As quickly as the Trojan is successfully infused, it will either cipher the information on the sufferer’s PC or prevent the gadget from functioning in an appropriate fashion – while additionally positioning a ransom note that discusses the demand for the victims to impact the payment for the purpose of decrypting the files or recovering the documents system back to the first condition. In many instances, the ransom money note will certainly show up when the customer restarts the PC after the system has currently been harmed.

Win32/Kryptik.GCLG circulation networks.

In various edges of the world, Win32/Kryptik.GCLG grows by leaps as well as bounds. However, the ransom notes as well as tricks of extorting the ransom amount may differ relying on particular local (local) settings. The ransom notes and also methods of obtaining the ransom quantity might vary depending on particular regional (local) setups.

Ransomware injection

For example:

    Faulty signals regarding unlicensed software.

    In particular areas, the Trojans commonly wrongfully report having detected some unlicensed applications enabled on the sufferer’s tool. The alert then requires the individual to pay the ransom money.

    Faulty declarations concerning unlawful material.

    In countries where software program piracy is less popular, this technique is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.GCLG popup alert might incorrectly declare to be originating from a police institution and will report having situated kid porn or other illegal data on the gadget.

    Win32/Kryptik.GCLG popup alert might incorrectly assert to be acquiring from a law enforcement establishment as well as will report having situated youngster pornography or other prohibited data on the gadget. The alert will likewise consist of a requirement for the customer to pay the ransom.

Technical details

File Info:

crc32: 2EB84935
md5: 3280a6697fd6c66cfb443aa09f13eb8b
name: 3280A6697FD6C66CFB443AA09F13EB8B.mlw
sha1: 536b5310e3249e066a5c6b1434fcce4286f5e4d6
sha256: 969a6e2a0a427ea14c61a5db97ef70644b25b4527c892f7b8ba160a0e73418ef
sha512: 49f865b7c66e37491b0d26af5029af2a2b9701c96c0771cac7b53be5479900093f9e5a06f578a28bfb06363e96f70c63ee723fca5b489412d705bb9f4f56397e
ssdeep: 1536:FInb5/IyQjGP6yF2H74C6oL0c6l2kjnG3xJttRZce6sJ9u9dsG4m44j444n444p:FIV/Iy/PKz6lQ3DRY4
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (C) 2017, dfgirgethth
FileVersion: 6.3.6.8
ProductVersion: 6.3.6.8
Translation: 0x0809 0x04b0

Win32/Kryptik.GCLG also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0053305e1 )
Elastic malicious (high confidence)
DrWeb Trojan.DownLoader26.13159
Cynet Malicious (score: 100)
CAT-QuickHeal Trojan.Chapak.ZZ6
ALYac Trojan.BRMon.Gen.3
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_90% (D)
Alibaba Trojan:Win32/Gandcrab.ae3848f0
K7GW Trojan ( 0053305e1 )
Cybereason malicious.97fd6c
Cyren W32/S-b2c95f94!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GCLG
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Trojan.Emotet-6440972-0
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Trojan.BRMon.Gen.3
NANO-Antivirus Trojan.Win32.Jorik.exjsoy
MicroWorld-eScan Trojan.BRMon.Gen.3
Tencent Malware.Win32.Gencirc.10c8912b
Ad-Aware Trojan.BRMon.Gen.3
Sophos Mal/Generic-S + Mal/GandCrab-D
Comodo TrojWare.Win32.Ransom.Foreign.A@7i19jk
BitDefenderTheta Gen:NN.ZexaF.34686.hu0@aKb3btiG
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPGANDCRAB.SMONT
McAfee-GW-Edition BehavesLike.Win32.AdwareSEasy.ch
FireEye Generic.mg.3280a6697fd6c66c
Emsisoft Trojan.BRMon.Gen.3 (B)
Jiangmin Trojan.Banker.NeutrinoPOS.bo
Webroot W32.Trojan.Gen
Avira HEUR/AGEN.1126869
eGambit Unsafe.AI_Score_94%
Microsoft Trojan:Win32/Gandcrab.GM!MTB
Arcabit Trojan.BRMon.Gen.3
ZoneAlarm HEUR:Trojan-Banker.Win32.NeutrinoPOS.gen
GData Win32.Trojan-Ransom.GandCrab.N
TACHYON Banker/W32.NeutrinoPOS.125440
AhnLab-V3 Trojan/Win32.MalCrypted.R244796
Acronis suspicious
McAfee Packed-ZG!3280A6697FD6
VBA32 Trojan.Jorik
Malwarebytes Trojan.SmokeLoader
Panda Trj/Genetic.gen
TrendMicro-HouseCall Ransom_HPGANDCRAB.SMONT
Rising Ransom.GandCrab!1.B152 (CLOUD)
Yandex Trojan.GenAsa!obBZgHb9xfo
Ikarus Trojan.Win32.Crypt
Fortinet W32/GenKryptik.CNAR!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.GCLG ransomware?

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.GCLG 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.GCLG 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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