Trojan.JS.Agent.KZI

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

What is Trojan.JS.Agent.KZI infection?

In this short article you will certainly discover regarding the definition of Trojan.JS.Agent.KZI and its negative impact on your computer. Such ransomware are a kind of malware that is clarified by on the internet fraudulences to demand paying the ransom by a victim.

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In the majority of the cases, Trojan.JS.Agent.KZI ransomware will advise its targets to launch funds transfer for the function of neutralizing the changes that the Trojan infection has actually introduced to the sufferer’s tool.

Trojan.JS.Agent.KZI Summary

These modifications 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.
  • Attempts to connect to a dead IP:Port (1 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.
  • A process created a hidden window;
  • Performs some HTTP requests;
  • Checks for the presence of known windows from debuggers and forensic tools;
  • Attempts to execute a binary from a dead or sinkholed URL;
  • 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.
  • A wscript.exe process commonly used in script or document file downloaders initiated network activity;
  • Detects VirtualBox through the presence of a registry key;
  • Attempts to modify proxy settings. This trick used for inject malware into connection between browser and server;
  • Ciphering the files located on the victim’s hard drive — so the sufferer can no longer make use of the information;
  • Preventing normal accessibility 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.
Similar behavior
Related domains
fprinter.com.brTrojan-Ransom.Script.Locky

Trojan.JS.Agent.KZI

The most common networks through which Trojan.JS.Agent.KZI Ransomware Trojans are infused are:

  • By means of phishing e-mails;
  • As a repercussion of customer ending up on a source that holds a harmful software program;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the victim’s computer or prevent the tool from functioning in an appropriate fashion – while additionally placing a ransom money note that points out the requirement for the sufferers to effect the settlement for the purpose of decrypting the records or restoring the documents system back to the initial condition. In most instances, the ransom note will certainly turn up when the client restarts the COMPUTER after the system has already been damaged.

Trojan.JS.Agent.KZI circulation networks.

In different edges of the globe, Trojan.JS.Agent.KZI expands by jumps as well as bounds. Nevertheless, the ransom notes and tricks of extorting the ransom amount might differ depending on particular regional (local) settings. The ransom money notes and also techniques of obtaining the ransom money quantity may differ depending on specific neighborhood (regional) setups.

Ransomware injection

For instance:

    Faulty informs concerning unlicensed software program.

    In certain locations, the Trojans typically wrongfully report having actually spotted some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the user to pay the ransom.

    Faulty statements regarding illegal material.

    In nations where software application piracy is less preferred, this method is not as efficient for the cyber scams. Additionally, the Trojan.JS.Agent.KZI popup alert might falsely claim to be deriving from a police institution and will report having located youngster pornography or various other prohibited information on the tool.

    Trojan.JS.Agent.KZI popup alert might wrongly claim to be deriving from a regulation enforcement establishment as well as will report having located youngster porn or various other prohibited information on the device. The alert will similarly include a need for the user to pay the ransom money.

Technical details

File Info:

crc32: 653D920D
md5: c4d1945866471a56324737d5422d67f4
name: balance_BD6.zip
sha1: c5a7d583837b29891826176ac14d721bf44f8872
sha256: ab5cca065fcc96c1f9219ef5ae46f77e9ac9e96c1011cf22d1ce58d9f9e588aa
sha512: 03cf0612478a6d68ad9723ebeb4ee212e50effef264fab406c9844d0b1c28308a638b86e8cb007cc346ca1b747f60d518eb8396c3cb5acd34ce8cc2614976c83
ssdeep: 96:1eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeAQOeeeeeeeeeeeeeeeeeeeeeeeeeeJ:n+S1vZ4JIM++S1vZ4JIMP+S1vZ4JIMVh
type: Zip archive data, at least v2.0 to extract

Version Info:

0: [No Data]

Trojan.JS.Agent.KZI also known as:

GridinSoftTrojan.Ransom.Gen
MicroWorld-eScanTrojan.JS.Agent.KZI
nProtectTrojan.JS.Agent.KZI
CAT-QuickHealJS.Dropper.GY
ALYacTrojan.JS.Agent.KZI
VIPRETrojan-Downloader.JS.Nemucod.c (v)
K7GWTrojan ( 004dfe6d1 )
K7AntiVirusTrojan ( 004dfe6d1 )
BaiduMulti.Threats.InArchive
F-ProtJS/Locky.AA
ESET-NOD32JS/TrojanDownloader.Nemucod.WG
AvastJS:Downloader-CZU [Trj]
ClamAVWin.Malware.Locky-5060
GDataTrojan.JS.Agent.KZI
KasperskyTrojan-Downloader.JS.Agent.ken
BitDefenderTrojan.JS.Agent.KZI
NANO-AntivirusTrojan.Script.Locky.ecathk
AegisLabJs.Troj.Crypt!c
TencentJs.Trojan.Raas.Auto
Ad-AwareTrojan.JS.Agent.KZI
EmsisoftTrojan.JS.Agent.KZI (B)
ComodoTrojWare.JS.TrojanDownloader.Swabfex.A
F-SecureTrojan.JS.Agent.KZI
DrWebJS.DownLoader.1225
ZillyaDownloader.Nemucod.JS.37
TrendMicroJS_LOCKY.EA
McAfee-GW-EditionJS/Nemucod.in
SophosJS/DwnLdr-NME
CyrenZIP/Locky.AA!Camelot
JiangminTrojan.JS/VBS.q
AviraHEUR/Suspar.Gen
Antiy-AVLTrojan/Generic.ASHS.37
ArcabitTrojan.JS.Agent.KZI
ViRobotJS.S.Downloader.536034[h]
MicrosoftTrojanDownloader:JS/Nemucod.OOE
McAfeeJS/Nemucod.in
AVwareTrojan-Downloader.JS.Nemucod.c (v)
RisingTrojan.Obfus/JS!1.A4A3
IkarusTrojan-Ransom.Script.Locky
FortinetJS/Nemucod.WG!tr.dldr
AVGJS/Downloader.Agent

How to remove Trojan.JS.Agent.KZI 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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The is an excellent way to deal with recognizing and removing threats – using Gridinsoft Anti-Malware. This program will scan your PC, find and neutralize all suspicious processes.2.

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 Trojan.JS.Agent.KZI 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 Trojan.JS.Agent.KZI 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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