Win32/Kryptik.ESVQ

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

What is Win32/Kryptik.ESVQ infection?

In this post you will certainly find regarding the meaning of Win32/Kryptik.ESVQ and its negative influence on your computer system. Such ransomware are a type of malware that is clarified by on-line frauds to demand paying the ransom by a sufferer.

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In the majority of the instances, Win32/Kryptik.ESVQ virus will certainly advise its targets to start funds transfer for the function of counteracting the changes that the Trojan infection has introduced to the sufferer’s tool.

Win32/Kryptik.ESVQ 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.
  • Compression (or decompression);
  • Injection with CreateRemoteThread in a remote process;
  • Attempts to connect to a dead IP:Port (2 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.
  • 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.

  • 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.
  • Performs some HTTP requests;
  • Unconventionial language used in binary resources: Bulgarian;
  • Uses Windows utilities for basic functionality;
  • Deletes its original binary from disk;
  • Sniffs keystrokes;
  • 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
  • Attempts to identify installed AV products by registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Creates a copy of itself;
  • Creates a slightly modified copy of itself;
  • Ciphering the papers located on the sufferer’s hard drive — so the target can no longer use the information;
  • Preventing regular accessibility to the target’s workstation;
Similar behavior
Related domains
www.iclnet.org Gen:Variant.Ransom.TorrentLocker.1

Win32/Kryptik.ESVQ

One of the most regular channels whereby Win32/Kryptik.ESVQ Ransomware are infused are:

  • By means of phishing e-mails;
  • As a consequence of individual winding up on a resource that organizes a malicious software;

As soon as the Trojan is effectively infused, it will either cipher the information on the victim’s computer or prevent the tool from functioning in an appropriate manner – while likewise putting a ransom money note that states the demand for the sufferers to effect the repayment for the function of decrypting the papers or recovering the file system back to the preliminary problem. In most circumstances, the ransom money note will turn up when the client reboots the COMPUTER after the system has currently been damaged.

Win32/Kryptik.ESVQ distribution networks.

In different edges of the globe, Win32/Kryptik.ESVQ grows by jumps as well as bounds. Nevertheless, the ransom notes and techniques of extorting the ransom amount may vary relying on certain regional (regional) setups. The ransom money notes and also techniques of extorting the ransom money quantity might vary depending on certain neighborhood (regional) settings.

Ransomware injection

As an example:

    Faulty informs regarding unlicensed software application.

    In certain locations, the Trojans commonly wrongfully report having found some unlicensed applications allowed on the sufferer’s tool. The alert after that demands the user to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In countries where software piracy is less preferred, this approach is not as reliable for the cyber fraudulences. Conversely, the Win32/Kryptik.ESVQ popup alert might wrongly assert to be stemming from a police establishment as well as will certainly report having situated child porn or various other prohibited information on the device.

    Win32/Kryptik.ESVQ popup alert might incorrectly claim to be obtaining from a law enforcement institution and will report having located youngster pornography or other prohibited information on the gadget. The alert will likewise have a need for the individual to pay the ransom money.

Technical details

File Info:

crc32: BCF22909
md5: cda6569bc0a41cdb4458ab60b6d294dd
name: CDA6569BC0A41CDB4458AB60B6D294DD.mlw
sha1: b2ca09b2b2daaa77d30e0c5b270d5e4e4f68c2e1
sha256: 10d4247a261ff6cabcb16cfcec15f45ed8e6b20fb7b03400425943c7ecfdacf1
sha512: 252e4e03ab419663cf613f5e99511391a9c7336c6b179bc99b556d54ab582479ad8cd4250c5e7f8213dee9bc6d5a44fafa14e31ee2a758d0691b682e1ac94cb2
ssdeep: 6144:5wZ0o4xq7uuX1zb3nQmGYFuNtCtAvj+HXSfXg9HF5seKbBJ9q+iDNVek:Zxq73b3dry8Sfyb+7sT9
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright xa9 2010
InternalName: Distillers
FileVersion: 19, 58, 42, 60
CompanyName: DRD Systems, Inc.
ProductName: Finnish Chortle
ProductVersion: 84, 171, 42, 205

Win32/Kryptik.ESVQ also known as:

GridinSoft Trojan.Ransom.Gen
Bkav W32.AIDetect.malware1
K7AntiVirus Riskware ( 0040eff71 )
Elastic malicious (high confidence)
DrWeb Trojan.Gozi
MicroWorld-eScan Gen:Variant.Ransom.TorrentLocker.1
ALYac Gen:Variant.Ransom.TorrentLocker.1
Cylance Unsafe
Zillya Trojan.CryptGen.Win32.1
Sangfor Trojan.Win32.Save.a
CrowdStrike win/malicious_confidence_100% (W)
Alibaba Trojan:Win32/Kryptik.8de3f236
K7GW Riskware ( 0040eff71 )
Cybereason malicious.bc0a41
Baidu Win32.Trojan.Kryptik.acm
Symantec Trojan.Gen
ESET-NOD32 a variant of Win32/Kryptik.ESVQ
APEX Malicious
Avast Win32:Malware-gen
Cynet Malicious (score: 100)
Kaspersky HEUR:Trojan.Win32.Generic
BitDefender Gen:Variant.Ransom.TorrentLocker.1
NANO-Antivirus Trojan.Win32.Gozi.ebeyzj
ViRobot Trojan.Win32.Locky.Gen.C
Ad-Aware Gen:Variant.Ransom.TorrentLocker.1
Sophos ML/PE-A + Troj/Qadars-J
Comodo Malware@#31midqilu6g66
BitDefenderTheta Gen:NN.ZexaF.34738.yq1@a4UOblaO
VIPRE Trojan.Win32.Generic!BT
TrendMicro Ransom_HPLOCKY.SM1
McAfee-GW-Edition Artemis!Trojan
FireEye Generic.mg.cda6569bc0a41cdb
Emsisoft Gen:Variant.Ransom.TorrentLocker.1 (B)
SentinelOne Static AI – Malicious PE
Jiangmin Trojan.Waldek.bvi
Avira HEUR/AGEN.1123144
eGambit Generic.Malware
Antiy-AVL Trojan/Generic.ASMalwS.17B42A4
Microsoft TrojanSpy:Win32/Ursnif
AegisLab Trojan.Win32.Waldek.4!c
GData Gen:Variant.Ransom.TorrentLocker.1
TACHYON Trojan/W32.Waldek.402570
Acronis suspicious
McAfee Artemis!CDA6569BC0A4
MAX malware (ai score=100)
VBA32 BScope.Trojan.Inject
Panda Trj/CI.A
TrendMicro-HouseCall Ransom_HPLOCKY.SM1
Rising [email protected] (RDML:rgfED7dgx6Z5hYA9rZODlw)
Ikarus Trojan.Win32.Crypt
MaxSecure Trojan.Malware.300983.susgen
Fortinet W32/Kryptik.ESVF!tr
AVG Win32:Malware-gen
Paloalto generic.ml

How to remove Win32/Kryptik.ESVQ 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.ESVQ 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.ESVQ 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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