Win32/Kryptik.EZCW

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

What is Win32/Kryptik.EZCW infection?

In this short article you will certainly find about the meaning of Win32/Kryptik.EZCW and also its adverse impact on your computer system. Such ransomware are a form of malware that is specified by on the internet scams to demand paying the ransom money by a target.

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Most of the situations, Win32/Kryptik.EZCW infection will advise its sufferers to initiate funds move for the function of reducing the effects of the changes that the Trojan infection has presented to the sufferer’s device.

Win32/Kryptik.EZCW Summary

These adjustments can be as complies with:

  • 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);
  • Injection with CreateRemoteThread in a remote process;
  • 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.
  • Mimics the system’s user agent string for its own requests;
  • A process attempted to delay the analysis task.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • Starts servers listening on 0.0.0.0:20074, :0;
  • 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.
  • Uses Windows utilities for basic functionality;
  • Code injection with CreateRemoteThread in a remote process;
  • Attempts to remove evidence of file being downloaded from the Internet;
  • Sniffs keystrokes;
  • Executed a process and injected code into it, probably while unpacking;
  • Tries to unhook or modify Windows functions monitored by Cuckoo;
  • Steals private information from local Internet browsers;
  • 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
  • Likely virus infection of existing system binary;
  • Creates Zeus (Banking Trojan) mutexes;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Attempts to modify browser security settings;
  • Harvests credentials from local FTP client softwares;
  • Creates a slightly modified copy of itself;
  • 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.
  • Clears web history;
  • Ciphering the documents located on the target’s hard disk — so the sufferer can no more make use of the data;
  • Preventing routine access 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.

Win32/Kryptik.EZCW

The most regular channels whereby Win32/Kryptik.EZCW Trojans are injected are:

  • By ways of phishing e-mails;
  • As an effect of customer ending up on a source that hosts a destructive software program;

As soon as the Trojan is effectively infused, it will either cipher the data on the victim’s computer or protect against the gadget from working in a proper manner – while additionally positioning a ransom money note that mentions the requirement for the sufferers to impact the payment for the objective of decrypting the papers or bring back the file system back to the first problem. In the majority of instances, the ransom money note will show up when the customer reboots the PC after the system has actually already been damaged.

Win32/Kryptik.EZCW circulation channels.

In numerous edges of the world, Win32/Kryptik.EZCW expands by jumps as well as bounds. Nonetheless, the ransom notes as well as methods of obtaining the ransom quantity may differ depending on certain neighborhood (regional) settings. The ransom money notes and techniques of extorting the ransom money quantity may differ depending on certain neighborhood (regional) setups.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software.

    In specific areas, the Trojans often wrongfully report having actually found some unlicensed applications made it possible for on the victim’s device. The sharp then demands the customer to pay the ransom money.

    Faulty declarations regarding unlawful material.

    In countries where software application piracy is much less preferred, this technique is not as effective for the cyber fraudulences. Conversely, the Win32/Kryptik.EZCW popup alert might falsely declare to be stemming from a law enforcement establishment and also will certainly report having situated youngster porn or various other illegal information on the gadget.

    Win32/Kryptik.EZCW popup alert may wrongly declare to be acquiring from a law enforcement institution as well as will report having situated kid pornography or other unlawful data on the device. The alert will similarly include a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 6921AC90
md5: a557bfa06aba0da23fe8da1412cbca74
name: A557BFA06ABA0DA23FE8DA1412CBCA74.mlw
sha1: 2b6bed00a79bd84952844e151f53ac66b1432557
sha256: cee5656607abd79f37d6b75b3f7b63cbab31d4b027cdd7cded58fafe3c6726ec
sha512: 2765ca994c3d8c3b5f6b5b030b9e9ddaa0f50d6217d9e737e7c48bcad56a7c3b33ef70de6b9c67b7b2436c6586578c387d876df2e5d17193621b7a98d4e579ca
ssdeep: 3072:XrzVegwOUkXX7x1PSOcXdkGrYe4dKdBW36yDFPxKqUqrtcrQquoQA27:XrzVegwOP/dcXHD4MBWF/UqxiBVZ27
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

0: [No Data]

Win32/Kryptik.EZCW also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Trojan ( 0051c95d1 )
Elastic malicious (high confidence)
DrWeb Trojan.PWS.Panda.12720
Cynet Malicious (score: 100)
McAfee GenericRXDZ-EC!A557BFA06ABA
Cylance Unsafe
Zillya Trojan.Foreign.Win32.59713
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Ransom:Win32/Foreign.bafb338a
K7GW Trojan ( 0051c95d1 )
Cybereason malicious.06aba0
Cyren W32/Trojan.CHF.gen!Eldorado
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.EZCW
APEX Malicious
Avast Win32:Malware-gen
ClamAV Win.Dropper.Zeus-9809557-0
Kaspersky Trojan-Ransom.Win32.Foreign.nrqn
BitDefender Gen:Variant.Cerbu.72968
NANO-Antivirus Trojan.Win32.Kryptik.evihel
MicroWorld-eScan Gen:Variant.Cerbu.72968
Tencent Malware.Win32.Gencirc.11494cb8
Ad-Aware Gen:Variant.Cerbu.72968
Sophos ML/PE-A + Mal/Ransom-EE
Comodo TrojWare.Win32.Zbot.EZXT@7tgdwr
BitDefenderTheta Gen:NN.ZexaF.34628.muX@aKh1Z6fi
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_Foreign.R002C0PAF21
FireEye Generic.mg.a557bfa06aba0da2
Emsisoft Gen:Variant.Cerbu.72968 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Generic.brqtg
Avira HEUR/AGEN.1112626
eGambit Unsafe.AI_Score_98%
Microsoft PWS:Win32/Zbot
AegisLab Trojan.Win32.Generic.4!c
GData Gen:Variant.Cerbu.72968
VBA32 Trojan-Ransom.Foreign
MAX malware (ai score=99)
Malwarebytes Zbot.Trojan.Stealer.DDS
Panda Trj/GdSda.A
TrendMicro-HouseCall Ransom_Foreign.R002C0PAF21
Rising Trojan.Crypto!8.364 (CLOUD)
Ikarus Trojan-Spy.Agent
Fortinet W32/Kryptik.FCAB!tr
AVG Win32:Malware-gen
Qihoo-360 Win32/Trojan.Ransom.60c

How to remove Win32/Kryptik.EZCW 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.EZCW 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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Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove Win32/Kryptik.EZCW 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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