Win32/Kryptik.GJWW

What is the Win32:Evo-gen [Trj] virus?
Written by Robert Bailey

What is Win32/Kryptik.GJWW infection?

In this post you will certainly find concerning the interpretation of Win32/Kryptik.GJWW and also its negative impact on your computer system. Such ransomware are a kind of malware that is elaborated by online fraudulences to require paying the ransom by a target.

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Most of the cases, Win32/Kryptik.GJWW infection will certainly instruct its sufferers to launch funds move for the function of reducing the effects of the modifications that the Trojan infection has presented to the victim’s tool.

Win32/Kryptik.GJWW Summary

These modifications can be as follows:

  • 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.
  • Unconventionial language used in binary resources: Albanian;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Exhibits possible ransomware file modification behavior;
  • 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 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;
  • Ciphering the records located on the victim’s hard disk — so the victim can no longer make use of the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.GJWW

One of the most common networks whereby Win32/Kryptik.GJWW are infused are:

  • By methods of phishing e-mails. Email phishing is a cyber attack that uses disguised email as a goal is to trick the recipient into believing that the message is something they want or need — a request from their bank, for instance, or a note from someone in their company — and to click a link for download a malware.
  • As a repercussion of customer winding up on a resource that hosts a destructive software application;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the sufferer’s computer or prevent the tool from operating in a correct manner – while additionally placing a ransom note that states the demand for the sufferers to effect the repayment for the purpose of decrypting the files or bring back the data system back to the preliminary problem. In the majority of instances, the ransom money note will come up when the customer restarts the PC after the system has already been damaged.

Win32/Kryptik.GJWW distribution networks.

In different corners of the globe, Win32/Kryptik.GJWW grows by jumps as well as bounds. However, the ransom money notes and methods of extorting the ransom money amount may vary depending upon specific local (regional) settings. The ransom notes as well as tricks of extorting the ransom money amount may vary depending on particular local (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software.

    In particular locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications enabled on the target’s gadget. The sharp after that requires the user to pay the ransom.

    Faulty statements concerning prohibited material.

    In countries where software piracy is much less popular, this technique is not as efficient for the cyber frauds. Alternatively, the Win32/Kryptik.GJWW popup alert might falsely assert to be deriving from a law enforcement establishment and also will report having situated kid pornography or other illegal data on the tool.

    Win32/Kryptik.GJWW popup alert may falsely claim to be obtaining from a law enforcement organization and will certainly report having situated kid pornography or other unlawful information on the device. The alert will in a similar way include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 1BF4E57E
md5: daaf83f34ffd4ff41170c8e3fcc6d72b
name: DAAF83F34FFD4FF41170C8E3FCC6D72B.mlw
sha1: 6fc4e2fe3508147fc4c26a995ac985b208bb8c73
sha256: 5194eebd8712847d65533cf94a3f8b3357af5aa219e6c42352f5d5733ef04d8c
sha512: 352b1920ff9a73da4a4fa572e83d195f6f399e221122c8c2cb0d518a1b9a0261e4497c056a43517bea73d6a6ff5aa82ce1caee29af2186ca5a24881f5d3df347
ssdeep: 3072:JFuBqrItv5k/BG2nhL1WzMR/4JEl33DX65QGRAI0XJh/cB9lXfT593gnmmzBN5B:LuMd/p1WgRgJSDK5QGaIT9D3gnm25
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

Translation: 0x3245 0xa910

Win32/Kryptik.GJWW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 00516fdf1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Siggen2.6265
Cynet Malicious (score: 100)
McAfee Trojan-FPST!DAAF83F34FFD
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Trojan:Win32/Generic.f5735428
K7GW Trojan ( 00516fdf1 )
Cybereason malicious.34ffd4
Cyren W32/GandCrypt.A.gen!Eldorado
Symantec Packed.Generic.525
ESET-NOD32 a variant of Win32/Kryptik.GJWW
APEX Malicious
Avast Win32:Malware-gen
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender DeepScan:Generic.BrResMon.1.5EAB6640
NANO-Antivirus Trojan.Win32.Kryptik.fgtcvu
ViRobot Trojan.Win32.GandCrab.244224
SUPERAntiSpyware Trojan.Agent/Generic
MicroWorld-eScan DeepScan:Generic.BrResMon.1.5EAB6640
Tencent Malware.Win32.Gencirc.10cc6244
Ad-Aware DeepScan:Generic.BrResMon.1.5EAB6640
Sophos Mal/Generic-S
Comodo Malware@#2yf3lfzef3rhs
BitDefenderTheta Gen:NN.ZexaF.34608.ouW@aCMfqGhG
McAfee-GW-Edition BehavesLike.Win32.Emotet.dc
FireEye Generic.mg.daaf83f34ffd4ff4
Emsisoft DeepScan:Generic.BrResMon.1.5EAB6640 (B)
Avira HEUR/AGEN.1119073
eGambit Unsafe.AI_Score_98%
Kingsoft Win32.Troj.Generic_a.a.(kcloud)
Microsoft Ransom:Win32/Genasom
AegisLab Trojan.Win32.GandCrypt.j!c
GData DeepScan:Generic.BrResMon.1.5EAB6640
TACHYON Ransom/W32.GandCrab.244224
AhnLab-V3 Win-Trojan/Gandcrab06.Exp
Acronis suspicious
VBA32 BScope.Trojan.Chapak
Malwarebytes MachineLearning/Anomalous.93%
Panda Trj/GdSda.A
Rising Ransom.GandCrypt!8.F33E (CLOUD)
SentinelOne Static AI – Malicious PE
Fortinet W32/GenKryptik.CIHP!tr
AVG Win32:Malware-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.1ba

How to remove Win32/Kryptik.GJWW 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.GJWW 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.GJWW 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/comparison

About the author

Robert Bailey

I'm Robert Bailey, a passionate Security Engineer with a deep fascination for all things related to malware, reverse engineering, and white hat ethical hacking.

As a white hat hacker, I firmly believe in the power of ethical hacking to bolster security measures. By identifying vulnerabilities and providing solutions, I contribute to the proactive defense of digital infrastructures.

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