Win32/Kryptik.GWIM

What is Win32/Kryptik.GWIM infection?

In this short article you will locate regarding the definition of Win32/Kryptik.GWIM and also its unfavorable impact on your computer system. Such ransomware are a form of malware that is clarified by on-line scams to require paying the ransom money by a victim.

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Most of the instances, Win32/Kryptik.GWIM infection will certainly advise its victims to start funds transfer for the function of reducing the effects of the modifications that the Trojan infection has introduced to the victim’s gadget.

Win32/Kryptik.GWIM 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.
  • Injection (inter-process);
  • Injection (Process Hollowing);
  • 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.
  • Reads data out of its own binary image. The trick that allows the malware to read data out of your computer’s memory.

    Everything you run, type, or click on your computer goes through the memory. This includes passwords, bank account numbers, emails, and other confidential information. With this vulnerability, there is the potential for a malicious program to read that data.

  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Attempts to delete volume shadow copies;
  • Executed a process and injected code into it, probably while unpacking;
  • 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 copy of itself;
  • Uses suspicious command line tools or Windows utilities;
  • Ciphering the documents located on the victim’s disk drive — so the sufferer can no more use the information;
  • Preventing regular accessibility to the sufferer’s workstation;

Win32/Kryptik.GWIM

The most regular networks whereby Win32/Kryptik.GWIM Ransomware Trojans are infused are:

  • By ways of phishing emails;
  • As a consequence of user ending up on a source that hosts a harmful software program;

As soon as the Trojan is successfully injected, it will either cipher the data on the target’s PC or prevent the gadget from operating in a correct way – while also placing a ransom money note that mentions the requirement for the targets to impact the repayment for the objective of decrypting the documents or bring back the file system back to the preliminary condition. In a lot of circumstances, the ransom note will certainly show up when the client reboots the COMPUTER after the system has already been harmed.

Win32/Kryptik.GWIM circulation channels.

In various edges of the globe, Win32/Kryptik.GWIM expands by jumps and bounds. However, the ransom notes and also techniques of extorting the ransom amount might differ depending on certain neighborhood (regional) setups. The ransom money notes and also methods of obtaining the ransom quantity might differ depending on certain local (local) settings.

Ransomware injection

As an example:

    Faulty informs concerning unlicensed software.

    In certain locations, the Trojans usually wrongfully report having actually found some unlicensed applications enabled on the sufferer’s gadget. The sharp then requires the individual to pay the ransom.

    Faulty statements regarding illegal web content.

    In nations where software program piracy is much less popular, this method is not as efficient for the cyber fraudulences. Conversely, the Win32/Kryptik.GWIM popup alert may falsely claim to be stemming from a police establishment and also will certainly report having situated child porn or other prohibited information on the device.

    Win32/Kryptik.GWIM popup alert might incorrectly claim to be deriving from a regulation enforcement establishment and also will certainly report having located child pornography or other prohibited data on the gadget. The alert will in a similar way consist of a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: 34D5E5FC
md5: 58b728556d76035f01c6e4283801aa10
name: 58B728556D76035F01C6E4283801AA10.mlw
sha1: 08bf1e78885302bfbade5f77cbb5afc43bbe14eb
sha256: fa2cb424a250afb6d0f60a0328f390757a56cd82a40b97092326d54a2cc805ab
sha512: 775cf3abe73043b43f60cc6f36f2413a9fcc0587e879d80c1208ae7f4e0abab1e147549736e2c73dcd803a6af3d5e6498a78ffc06c6556bc948bb79f0ffec641
ssdeep: 12288:QtKDK2J7QwCamnxZUt1Lh6cZjKVzgVFy08Fk+ooGU5Sc6UDx9djdp/b:Q0DK2dQwCf4gc0VzsF3UDb7R
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright 2015 Blueberry Consultants Ltd.
FileVersion: 3.4.7.5
CompanyName: Blueberry Consultants Ltd.
FileDescription: Imac Xmlfile
LegalTrademarks: Copyright 2015 Blueberry Consultants Ltd.
Comments: Imac Xmlfile
ProductName: Sports
ProductVersion: 3.4.7.5
PrivateBuild: 3.4.7.5
OriginalFilename: Sports.exe
Translation: 0x0409 0x04b0

Win32/Kryptik.GWIM also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 005579ef1 )
Elastic malicious (high confidence)
DrWeb Trojan.Inject3.25537
Cynet Malicious (score: 100)
ALYac Trojan.BrsecmonE.1
Cylance Unsafe
Zillya Trojan.Foreign.Win32.59011
Sangfor Trojan.Win32.Save.a
Alibaba Ransom:Win32/Foreign.56194abe
K7GW Trojan ( 005579ef1 )
Cybereason malicious.56d760
Cyren W32/Kryptik.AEE.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.GWIM
APEX Malicious
Avast Win32:Trojan-gen
Kaspersky Trojan-Ransom.Win32.Foreign.oijq
BitDefender Trojan.BrsecmonE.1
NANO-Antivirus Trojan.Win32.Inject3.gaeeye
MicroWorld-eScan Trojan.BrsecmonE.1
Tencent Win32.Trojan.Foreign.Sxyl
Ad-Aware Trojan.BrsecmonE.1
Sophos Mal/Generic-S
Comodo Malware@#1hltcg16nq4na
BitDefenderTheta Gen:NN.ZexaF.34670.Tu0@aiT2Lqii
VIPRE Trojan.Win32.Generic!BT
TrendMicro Mal_HPGen-37b
McAfee-GW-Edition BehavesLike.Win32.Dropper.bc
FireEye Generic.mg.58b728556d76035f
Emsisoft Trojan.BrsecmonE.1 (B)
SentinelOne Static AI – Malicious PE
Avira HEUR/AGEN.1113279
Microsoft Trojan:Win32/Wacatac.B!ml
Arcabit Trojan.BrsecmonE.1
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan-Ransom.Win32.Foreign.oijq
GData Trojan.BrsecmonE.1
AhnLab-V3 Malware/Win32.Hpgen.C3471029
McAfee Artemis!58B728556D76
MAX malware (ai score=84)
Malwarebytes Ransom.Crysis
Panda Trj/CI.A
TrendMicro-HouseCall Mal_HPGen-37b
Rising Ransom.Foreign!8.292 (CLOUD)
Ikarus Trojan-Ransom.GandCrab
MaxSecure Trojan.Malware.73761530.susgen
Fortinet W32/Foreign.GWIM!tr.ransom
AVG Win32:Trojan-gen
Paloalto generic.ml
Qihoo-360 Win32/Trojan.Foreign.HgIASOoA

How to remove Win32/Kryptik.GWIM 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.GWIM 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.GWIM 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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