Win32/Kryptik.EWSP

Written by Robert Bailey

What is Win32/Kryptik.EWSP infection?

In this post you will certainly discover about the definition of Win32/Kryptik.EWSP and its negative effect on your computer system. Such ransomware are a type of malware that is specified by online frauds to require paying the ransom money by a victim.

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In the majority of the situations, Win32/Kryptik.EWSP ransomware will certainly advise its targets to launch funds transfer for the purpose of counteracting the changes that the Trojan infection has presented to the sufferer’s tool.

Win32/Kryptik.EWSP Summary

These alterations 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.
  • Attempts to connect to a dead IP:Port (1 unique times);
  • Enumerates user accounts on the system;
  • 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.
  • A process attempted to delay the analysis task.;
  • At least one IP Address, Domain, or File Name was found in a crypto call;
  • 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;
  • Creates an excessive number of UDP connection attempts to external IP addresses;
  • Performs some HTTP requests;
  • The binary likely contains encrypted or compressed data. In this case, encryption is a way of hiding virus’ code from antiviruses and virus’ analysts.
  • Looks up the external IP address;
  • Uses Windows utilities for basic functionality;
  • Attempts to delete volume shadow copies;
  • Deletes its original binary from disk;
  • 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!
  • Modifies boot configuration settings;
  • Exhibits behavior characteristic of Cerber ransomware;
  • Creates or sets a registry key to a long series of bytes, possibly to store a binary or malware config;
  • Mimics the file times of a Windows system file;
  • 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.
  • EternalBlue behavior. Allows cyber threat actors to remotely execute arbitrary code and gain access to a network by sending specially crafted packets.

    This is has made EternalBlue trick popular with various malware, such as Trickbot, a modular banking trojan, as well as CoinMiner and WannaMine, crypto miners that use the EternalBlue exploit in order to gain access to computing power to mine cryptocurrencies.

  • Creates a copy of itself;
  • Generates some ICMP traffic;
  • 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 located on the sufferer’s hard disk drive — so the victim can no longer make use of the data;
  • Preventing normal accessibility to the sufferer’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
ipinfo.io Ransomware-GIX!A5471CE493B4

Win32/Kryptik.EWSP

The most regular channels through which Win32/Kryptik.EWSP Ransomware 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 an effect of user ending up on a resource that hosts a harmful software application;

As soon as the Trojan is effectively infused, it will certainly either cipher the data on the target’s PC or stop the device from working in a proper manner – while additionally putting a ransom money note that points out the need for the targets to effect the payment for the function of decrypting the documents or recovering the file system back to the first problem. In most circumstances, the ransom note will certainly show up when the client restarts the PC after the system has actually currently been damaged.

Win32/Kryptik.EWSP circulation channels.

In numerous edges of the world, Win32/Kryptik.EWSP expands by leaps as well as bounds. However, the ransom money notes and also tricks of obtaining the ransom quantity might differ depending upon specific local (regional) setups. The ransom notes as well as techniques of obtaining the ransom money quantity may vary depending on particular regional (regional) setups.

Ransomware injection

As an example:

    Faulty notifies about unlicensed software application.

    In specific locations, the Trojans usually wrongfully report having found some unlicensed applications enabled on the target’s device. The alert after that demands the customer to pay the ransom money.

    Faulty statements concerning prohibited web content.

    In nations where software piracy is less popular, this approach is not as effective for the cyber scams. Conversely, the Win32/Kryptik.EWSP popup alert may wrongly declare to be deriving from a police institution and also will report having located kid porn or various other illegal data on the gadget.

    Win32/Kryptik.EWSP popup alert might falsely assert to be acquiring from a legislation enforcement institution and will certainly report having situated child pornography or other illegal data on the tool. The alert will similarly include a requirement for the individual to pay the ransom money.

Technical details

File Info:

crc32: 75049EB3
md5: a5471ce493b4f8dea30c8a0cf3ea20ea
name: A5471CE493B4F8DEA30C8A0CF3EA20EA.mlw
sha1: b31a3699d0d0484e10c2795c575c016954c256b2
sha256: 0f9adf68aa5ce64a4e36f91d76f9a60b8d442dccda80cabda1b260818edc4c9d
sha512: 79a1052e197490ee86ed23d7c9328b00ea13708f72cc6e9bc0595d0a77ce62cbb913c7763349c001aa5ce0ff943e51077933ffa5ac3ce2157165ff52bd84f744
ssdeep: 3072:4pnXZz6PuAKmHkIHXyZdch82ZEw35TRizSRIIi:4pXZZDmEIHiyEwpT8zSRx
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright Birdberry Fole
InternalName: coolers
FileVersion: 9.9
CompanyName: Birdberry Fole
ProductName: coolers folkfree
ProductVersion: 9.9
FileDescription: coolers polygons lir
OriginalFilename: coolers.exe
Translation: 0x0409 0x04b0

Win32/Kryptik.EWSP also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware2
K7AntiVirus Trojan ( 0051e1001 )
Elastic malicious (high confidence)
McAfee Ransomware-GIX!A5471CE493B4
Cylance Unsafe
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (D)
Alibaba Ransom:Win32/Zerber.cd696638
K7GW Trojan ( 0051e1001 )
Cybereason malicious.493b4f
Symantec ML.Attribute.HighConfidence
ESET-NOD32 a variant of Win32/Kryptik.EWSP
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky Trojan-Ransom.Win32.Zerber.fhvv
BitDefender Gen:Variant.Razy.70974
NANO-Antivirus Trojan.Win32.Zerber.evklki
MicroWorld-eScan Gen:Variant.Razy.70974
Tencent Win32.Trojan.Zerber.Lkxb
Ad-Aware Gen:Variant.Razy.70974
Sophos ML/PE-A + Mal/Cerber-C
Comodo Malware@#ntz1vfxz182o
F-Secure Trojan.TR/Crypt.ZPACK.jqsfa
BitDefenderTheta Gen:NN.ZexaF.34690.hq0@aCV@V7ki
VIPRE Trojan.Win32.Generic!BT
McAfee-GW-Edition BehavesLike.Win32.Emotet.ch
FireEye Generic.mg.a5471ce493b4f8de
Emsisoft Gen:Variant.Razy.70974 (B)
SentinelOne Static AI – Suspicious PE
Jiangmin Trojan.Zerber.dki
Avira TR/Crypt.ZPACK.jqsfa
Microsoft Ransom:Win32/Cerber.A
AegisLab Trojan.Win32.Generic.4!c
ZoneAlarm Trojan-Ransom.Win32.Zerber.fhvv
GData Gen:Variant.Razy.70974
AhnLab-V3 Trojan/Win32.Generic.C2282563
VBA32 Trojan-Ransom.Zerber
MAX malware (ai score=100)
Malwarebytes Generic.Malware/Suspicious
Panda Trj/GdSda.A
Rising Ransom.Cerber!8.3058 (CLOUD)
Yandex Trojan.GenAsa!EPdV0KB6Z+g
Ikarus Trojan.Win32.Crypt
Fortinet W32/Kryptik.EYKI!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.EWSP virus?

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.EWSP 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.EWSP 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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