Written by Robert Bailey

What is JS/TrojanDownloader.Agent.VZT infection?

In this article you will discover about the meaning of JS/TrojanDownloader.Agent.VZT and also its unfavorable impact on your computer. Such ransomware are a form of malware that is specified by on the internet scams to demand paying the ransom by a sufferer.

GridinSoft Anti-Malware Review

It is better to prevent, than repair and repent!

When we talk about the intrusion of unfamiliar programs into your computer’s work, the proverb “Forewarned is forearmed” describes the situation as accurately as possible. Gridinsoft Anti-Malware is exactly the tool that is always useful to have in your armory: fast, efficient, up-to-date. It is appropriate to use it as an emergency help at the slightest suspicion of infection.
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In the majority of the cases, JS/TrojanDownloader.Agent.VZT ransomware will advise its victims to launch funds transfer for the function of neutralizing the changes that the Trojan infection has actually presented to the victim’s tool.

JS/TrojanDownloader.Agent.VZT Summary

These modifications can be as complies with:

  • Injection (inter-process);
  • Uses Windows utilities for basic functionality;
  • 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!
  • A potential decoy document was displayed to the user;
  • Network activity detected but not expressed in API logs. Microsoft built an API solution right into its Windows operating system it reveals network activity for all apps and programs that ran on the computer in the past 30-days. This malware hides network activity.
  • Ciphering the papers located on the victim’s hard disk drive — so the victim can no longer utilize the data;
  • Preventing normal access 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
z.whorecord.xyz HEUR_JSRANSOM.O4
a.tomx.xyz HEUR_JSRANSOM.O4


The most normal channels whereby JS/TrojanDownloader.Agent.VZT are infused are:

  • By methods of phishing emails;
  • As a consequence of individual ending up on a resource that organizes a harmful software application;

As quickly as the Trojan is efficiently injected, it will certainly either cipher the information on the target’s PC or stop the tool from working in a proper fashion – while additionally positioning a ransom money note that points out the need for the victims to effect the settlement for the objective of decrypting the papers or restoring the documents system back to the preliminary condition. In the majority of instances, the ransom note will certainly turn up when the client reboots the PC after the system has actually currently been harmed.

JS/TrojanDownloader.Agent.VZT distribution networks.

In various corners of the world, JS/TrojanDownloader.Agent.VZT expands by jumps and also bounds. However, the ransom notes and methods of obtaining the ransom money amount might differ depending on certain neighborhood (regional) setups. The ransom money notes as well as tricks of extorting the ransom quantity might vary depending on particular neighborhood (local) setups.

Ransomware injection

As an example:

    Faulty alerts about unlicensed software application.

    In specific locations, the Trojans commonly wrongfully report having spotted some unlicensed applications made it possible for on the sufferer’s gadget. The alert after that requires the customer to pay the ransom money.

    Faulty declarations concerning unlawful content.

    In nations where software program piracy is less popular, this approach is not as reliable for the cyber fraudulences. Alternatively, the JS/TrojanDownloader.Agent.VZT popup alert might incorrectly declare to be deriving from a police organization and will report having situated kid porn or other illegal information on the device.

    JS/TrojanDownloader.Agent.VZT popup alert might wrongly assert to be acquiring from a legislation enforcement establishment as well as will report having situated child pornography or various other unlawful data on the tool. The alert will likewise have a requirement for the user to pay the ransom.

Technical details

File Info:

crc32: FC551DE5
md5: 844a675ac8641c875b5885658cb7919d
name: upload_file
sha1: 7a65b2b5f59e86b3c8ff6a849fa2393c4b453f07
sha256: 1317bf53d943ab530ba70ba2cc6ec8cb97a04cf46012dd2c47249b5e4822a395
sha512: 2973cd43efe66b72cc7afe4956c7873b5d7643db219339928cffd1d86da14acb64ad5aade2cc9d322e6445bfc2118cdc71719264c8b33bcde03442cd09979ba0
ssdeep: 192:gRjj+0ltSoTeMuik9Pxt23M5G3T5zcOtOC5BhjgAvNQ8:U20L/MU3T5RKAd
type: ASCII text, with very long lines, with CRLF line terminators

Version Info:

0: [No Data]

JS/TrojanDownloader.Agent.VZT also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan Trojan.GenericKD.34577102
FireEye Trojan.GenericKD.34577102
CAT-QuickHeal Pdf.Trojan.A881450
McAfee JS/Downloader.dd
Cyren Trojan.YMOD-6
Symantec Trojan.Gen.NPE
Avast Other:Malware-gen [Trj]
Kaspersky HEUR:Trojan.Script.Generic
BitDefender Trojan.GenericKD.34577102
NANO-Antivirus Trojan.Script.Heuristic-js.iacgm
AegisLab Trojan.Script.Generic.4!c
Ad-Aware Trojan.GenericKD.34577102
Sophos JS/DwnLdr-AAHF
Comodo Malware@#60kfqcbeoxzs
DrWeb Trojan.DownLoader34.50461
Invincea JS/DwnLdr-AAHF
McAfee-GW-Edition BehavesLike.JS.Exploit.lm
Emsisoft Trojan.GenericKD.34577102 (B)
Ikarus Trojan-Downloader.JS.Agent
Microsoft Trojan:Win32/Casdet!rfn
Arcabit HEUR.JS.Trojan.ba.1
ZoneAlarm HEUR:Trojan.Script.Generic
GData Trojan.GenericKD.34577102
ALYac Trojan.JS.Downloader.Agent
ESET-NOD32 JS/TrojanDownloader.Agent.VZT
Rising Downloader.Agent!8.B23 (TOPIS:E0:1oTy10asQ6P)
MAX malware (ai score=85)
AVG Other:Malware-gen [Trj]
Panda Trj/Agent.JB
Qihoo-360 virus.js.qexvmc.1

How to remove JS/TrojanDownloader.Agent.VZT 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

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 JS/TrojanDownloader.Agent.VZT 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 JS/TrojanDownloader.Agent.VZT you can always ask me in the comments for getting help.

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  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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