Written by Robert Bailey

What is JS:Trojan.JS.Agent.NA infection?

In this short article you will discover regarding the meaning of JS:Trojan.JS.Agent.NA as well as its adverse influence on your computer. Such ransomware are a form of malware that is specified by on the internet scams to require paying the ransom money by a sufferer.

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GridinSoft Anti-Malware

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Most of the situations, JS:Trojan.JS.Agent.NA infection will instruct its targets to launch funds move for the objective of neutralizing the amendments that the Trojan infection has actually introduced to the sufferer’s tool.

JS:Trojan.JS.Agent.NA Summary

These modifications can be as adheres to:

  • Ciphering the papers found on the sufferer’s disk drive — so the sufferer can no longer use the data;
  • Preventing regular accessibility to the target’s workstation;


One of the most common channels whereby JS:Trojan.JS.Agent.NA are injected are:

  • By means of phishing emails;
  • As a consequence of individual ending up on a resource that holds a destructive software program;

As soon as the Trojan is successfully injected, it will certainly either cipher the information on the sufferer’s PC or stop the device from functioning in a correct way – while additionally putting a ransom money note that discusses the requirement for the targets to impact the payment for the function of decrypting the papers or bring back the documents system back to the first problem. In many instances, the ransom note will show up when the client reboots the COMPUTER after the system has actually currently been damaged.

JS:Trojan.JS.Agent.NA circulation channels.

In various corners of the world, JS:Trojan.JS.Agent.NA expands by jumps as well as bounds. Nevertheless, the ransom money notes and also techniques of extorting the ransom amount might differ depending on certain regional (local) setups. The ransom money notes and methods of obtaining the ransom quantity might differ depending on certain local (regional) setups.

Ransomware injection

For instance:

    Faulty signals regarding unlicensed software application.

    In specific areas, the Trojans commonly wrongfully report having actually found some unlicensed applications made it possible for on the victim’s gadget. The alert after that demands the individual to pay the ransom.

    Faulty declarations regarding unlawful material.

    In nations where software piracy is much less preferred, this approach is not as reliable for the cyber fraudulences. Alternatively, the JS:Trojan.JS.Agent.NA popup alert may falsely claim to be stemming from a law enforcement organization and also will certainly report having located child porn or various other illegal data on the device.

    JS:Trojan.JS.Agent.NA popup alert might wrongly claim to be obtaining from a law enforcement establishment and will report having situated youngster porn or various other prohibited data on the device. The alert will likewise include a demand for the user to pay the ransom.

Technical details

File Info:

crc32: 6B054DD9
md5: 137ea90c64e279f15831bfbea86f928f
name: 09D21_it_F5D6DC.rar
sha1: 892e0f44adfdf7dcc3f07c1b1d314edf390fc23c
sha256: 41f4dec426698c994075aa2d45e3882f97c24325c26e3d6921d10fc0281e3b5a
sha512: 5f8a352fe4e16254aca02b80ee4df94f0ecc1d9dbaf2abb2b3ed6a9b5e532967a2efd93cdf5cb410dbbfb0f6b03da7837641244aae08dd8a6ed630ff614d3fda
ssdeep: 24:hgqgJOtlcr74cS8r9sTqAOQBhMLgxRXjZmE29qYmsJy6hwcFDtkhAxd1oJ061VPu:ygDcV9sTqsBWLgbNEDFR70061VQh
type: RAR archive data, v1d, os: Win32

Version Info:

0: [No Data]

JS:Trojan.JS.Agent.NA also known as:

GridinSoft Trojan.Ransom.Gen
MicroWorld-eScan JS:Trojan.JS.Agent.NA
CAT-QuickHeal JS.Dropper.AR
McAfee JS/Nemucod.ik
K7GW Trojan ( 004e1ad31 )
K7AntiVirus Trojan ( 004e1ad31 )
Arcabit JS:Trojan.JS.Agent.NA
Baidu JS.Trojan-Downloader.Nemucod.v
NANO-Antivirus Trojan.Script.Nemucod.ebzvar
F-Prot JS/Locky.X.gen
Symantec Trojan.Gen.NPE
ESET-NOD32 JS/TrojanDownloader.Nemucod.UH
TrendMicro-HouseCall JS_LOCKY.SM1
Avast Other:Malware-gen [Trj]
ClamAV Win.Malware.Nemucod-6769661-0
Kaspersky Trojan-Downloader.JS.Agent.kbk
BitDefender JS:Trojan.JS.Agent.NA
AegisLab Trojan.JS.Agent.a!c
Tencent Html.Win32.Script.503814
Emsisoft JS:Trojan.JS.Agent.NA (B)
Comodo TrojWare.JS.TrojanDownloader.Swabfex.A@6dflv6
F-Secure Trojan-Downloader:JS/Locky.D
DrWeb Trojan.DownLoader25.23487
TrendMicro JS_LOCKY.SM1
McAfee-GW-Edition JS/Nemucod.ik
Sophos JS/DwnLdr-NLD
Cyren JS/Locky.X.gen
Jiangmin TrojanDownloader.JS.bcur
Avira HEUR/Suspar.Gen
MAX malware (ai score=100)
Antiy-AVL Trojan[Downloader]/JS.Nemucod.yw
Microsoft TrojanDownloader:JS/Swabfex.P
ZoneAlarm Trojan-Downloader.JS.Agent.kbk
GData Script.Trojan-Downloader.Nemucod.BD
Rising Trojan.DL-Locky!1.A4D0 (CLASSIC)
Ikarus Trojan-Ransom.Script.Locky
Fortinet JS/Nemucod.C3A3!tr.dldr
AVG Other:Malware-gen [Trj]
Qihoo-360 trojan.js.downloader.1

How to remove JS:Trojan.JS.Agent.NA 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 JS:Trojan.JS.Agent.NA 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:Trojan.JS.Agent.NA 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: http://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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