Win32/Kryptik.GYQI

What is Win32/Kryptik.GYQI infection?

In this article you will certainly discover concerning the interpretation of Win32/Kryptik.GYQI as well as its adverse impact on your computer. Such ransomware are a type of malware that is specified by on-line fraudulences to demand paying the ransom money by a target.

In the majority of the cases, Win32/Kryptik.GYQI ransomware will instruct its victims to initiate funds transfer for the purpose of counteracting the changes that the Trojan infection has presented to the target’s gadget.

Win32/Kryptik.GYQI 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • Attempts to connect to a dead IP:Port (4 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.
  • Possible date expiration check, exits too soon after checking local time;
  • 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.
  • HTTP traffic contains suspicious features which may be indicative of malware related traffic;
  • Performs some HTTP requests;
  • Uses Windows utilities for basic functionality;
  • Executed a process and injected code into it, probably while unpacking;
  • Deletes its original binary from disk;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Steals private information from local Internet browsers;
  • Network activity contains more than one unique useragent.;
  • 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
  • Collects information about installed applications;
  • Checks the CPU name from registry, possibly for anti-virtualization;
  • Attempts to access Bitcoin/ALTCoin wallets;
  • Harvests credentials from local FTP client softwares;
  • Harvests information related to installed instant messenger clients;
  • Harvests information related to installed mail clients;
  • Collects information to fingerprint the system. There are behavioral human characteristics that can be used to digitally identify a person to grant access to systems, devices, or data. Unlike passwords and verification codes, fingerprints are fundamental parts of user’s identities. Among the threats blocked on biometric data processing and storage systems is spyware, the malware used in phishing attacks (mostly spyware downloaders and droppers), ransomware, and Banking Trojans as posing the greatest danger.
  • 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 situated on the sufferer’s hard disk — so the target can no more make use of the information;
  • Preventing normal accessibility 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.
Similar behavior
Related domains
waresustems.com Ransom.Stop.Generic
iplogger.org Ransom.Stop.Generic
apps.identrust.com Ransom.Stop.Generic
isrg.trustid.ocsp.identrust.com Ransom.Stop.Generic
ocsp.int-x3.letsencrypt.org Ransom.Stop.Generic

Win32/Kryptik.GYQI

The most typical channels whereby Win32/Kryptik.GYQI are infused are:

  • By ways of phishing e-mails;
  • As a consequence of user winding up on a source that organizes a harmful software;

As soon as the Trojan is efficiently infused, it will either cipher the information on the victim’s computer or prevent the device from operating in a correct way – while additionally positioning a ransom money note that states the demand for the targets to effect the repayment for the purpose of decrypting the papers or recovering the documents system back to the preliminary problem. In most circumstances, the ransom money note will turn up when the customer restarts the COMPUTER after the system has actually currently been damaged.

Win32/Kryptik.GYQI circulation channels.

In various edges of the world, Win32/Kryptik.GYQI grows by jumps and bounds. However, the ransom notes and methods of extorting the ransom amount may vary depending upon specific local (local) setups. The ransom notes and techniques of extorting the ransom amount may vary depending on particular neighborhood (regional) settings.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software.

    In specific areas, the Trojans often wrongfully report having actually spotted some unlicensed applications made it possible for on the target’s tool. The alert after that requires the customer to pay the ransom.

    Faulty statements about unlawful content.

    In countries where software program piracy is much less prominent, this method is not as effective for the cyber fraudulences. Conversely, the Win32/Kryptik.GYQI popup alert might wrongly assert to be originating from a law enforcement establishment as well as will report having situated child porn or various other prohibited data on the device.

    Win32/Kryptik.GYQI popup alert might falsely assert to be deriving from a law enforcement institution and will certainly report having situated child pornography or other unlawful data on the gadget. The alert will likewise consist of a demand for the customer to pay the ransom money.

Technical details

File Info:

crc32: 475DDF7Bmd5: f4d5c732b89e7caaa53d18dba071df10name: upp.exesha1: 5a087a3ff211bc4aedb5c2b837091b35bfc92120sha256: 19de4ea70d30d9c4163c593a76101058ef28839a226eb7d92021c67e6e832304sha512: 3a8e08388412d598cc7c8841f24a8c9f2496000752b2f6557e43474878d7a5538d3fd4d83c4dfb51994347cfc9caf8e5824510e22e72e0ae1e4ac445e5f2c76dssdeep: 3072:lsNocLcR/+M6gqx+nBNfp415wYV5W4N88KU5edNqjjjjjjjEwxS5YA:lsNvcRGzjxEA15wg5W4+RU5S1qAtype: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

FileOldVersionTree: 1.0.4.4InternalNameTwo: gjtrrh.exeTranslation: 0x0842 0x04c4

Win32/Kryptik.GYQI also known as:

GridinSoft Trojan.Ransom.Gen
DrWeb Trojan.PWS.Stealer.24273
MicroWorld-eScan Trojan.GenericKD.42039164
CAT-QuickHeal Trojanpws.Azorult
McAfee RDN/Generic PWS.y
Cylance Unsafe
VIPRE Trojan.Win32.Generic!BT
K7AntiVirus Trojan ( 0055be5e1 )
Alibaba Trojan:Win32/Kryptik.2632b4eb
K7GW Trojan ( 0055be5e1 )
CrowdStrike win/malicious_confidence_100% (W)
Arcabit Trojan.Generic.D281777C
BitDefenderTheta Gen:NN.ZexaF.32515.nyW@aOPj9jk
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GYQI
APEX Malicious
Paloalto generic.ml
ClamAV Win.Trojan.Generickdz-7406516-0
Kaspersky Trojan-PSW.Win32.Azorult.afvm
BitDefender Trojan.GenericKD.42039164
Rising Trojan.Kryptik!1.BE74 (CLASSIC)
Ad-Aware Trojan.GenericKD.42039164
Comodo Malware@#3jp8c65gg341e
F-Secure Trojan.TR/Kryptik.fbfih
Invincea heuristic
McAfee-GW-Edition BehavesLike.Win32.Generic.dh
Fortinet W32/Kryptik.GYQI!tr
Trapmine suspicious.low.ml.score
FireEye Generic.mg.f4d5c732b89e7caa
Sophos Mal/Generic-S
Ikarus Trojan-Downloader.Win32.SmokeLoader
Jiangmin Trojan.PSW.Tepfer.kdn
Webroot W32.Trojan.GenKD
Avira TR/Kryptik.fbfih
MAX malware (ai score=100)
Endgame malicious (high confidence)
Microsoft Trojan:Win32/Gepys.PVS!MTB
ViRobot Trojan.Win32.Z.Kryptik.212992.PT
ZoneAlarm Trojan-PSW.Win32.Azorult.afvm
AhnLab-V3 Trojan/Win32.MalPe.R300348
Acronis suspicious
VBA32 BScope.Backdoor.Predator
ALYac Spyware.Infostealer.Azorult
Malwarebytes Ransom.Stop.Generic
Panda Trj/GdSda.A
TrendMicro-HouseCall TROJ_GEN.R011C0PKN19
SentinelOne DFI – Suspicious PE
GData Win32.Trojan.Kryptik.ON
AVG FileRepMalware
Cybereason malicious.ff211b
Avast FileRepMalware
Qihoo-360 Win32/Trojan.PSW.f43

How to remove Win32/Kryptik.GYQI 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

Run the setup file.

Run Setup.exe
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 Scanning

Click on “Clean Now”.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

Full version of GridinSoft

If the guide doesn’t help you to remove Win32/Kryptik.GYQI you can always ask me in the comments for getting help.

References

    About the author

    Robert Bailey

    Security engineer focused on malware behavior, removal workflows, and Windows hardening. Robert reviews threat articles for practical accuracy, checking detection names, symptoms, and cleanup steps before publication.

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