What is JS/Agent Trojan

JS/Agent Trojan refers to a large family of trojans written in JavaScript, a popular scripting language used extensively for creating dynamic web pages. These malicious scripts are designed to perform a variety of unauthorized actions on the victim’s computer, ranging from data theft to downloading and executing other malware. Due to the widespread use of JavaScript in web development, JS/Agent Trojans can easily blend with legitimate web content, making them particularly hard to detect and remove. The JS/Agent Trojan is a broad classification for a family of malicious JavaScript files that pose significant threats to computer systems. These Trojans are notorious for their versatility in delivering payloads, stealing data, and facilitating unauthorized access to infected systems. Understanding the nature of JS/Agent Trojan, its infection mechanisms, and effective removal strategies is crucial for maintaining cybersecurity. Removing a JS/Agent Trojan from an infected system requires a comprehensive approach, as these Trojans can download additional malware and modify system settings to avoid detection.

JS/Agent Trojan

How JS/Agent Trojan infected your system

JS/Agent Trojans primarily infect computers through compromised or malicious websites. When a user visits such a site, the malicious JavaScript code can be silently dropped onto the computer without the user’s knowledge, a process known as a drive-by download. These Trojans can also be distributed via email attachments or links, exploiting vulnerabilities in the browser or its plugins to execute the malicious script. Another common method of infection involves social engineering tactics, where users are tricked into executing the malicious JavaScript files themselves. This could be through misleading emails that masquerade as legitimate communications, containing attachments or links that lead to the Trojan.

  1. Download JS/Agent Trojan Removal Tool
  2. Use Windows Malicious Software Removal Tool to remove JS/Agent Trojan
  3. Use Autoruns to remove JS/Agent Trojan
  4. Files, folders and registry keys of JS/Agent Trojan
  5. Other aliases of JS/Agent Trojan
  6. How to protect from threats, like JS/Agent Trojan

Download Removal Tool

Download Removal Tool

To remove JS/Agent Trojan completely, we recommend you to use SpyHunter. It can help you remove files, folders, and registry keys of JS/Agent Trojan and provides active protection from viruses, trojans, backdoors. The trial version of SpyHunter offers virus scan and 1-time removal for FREE.

Download Alternative Removal Tool

Download Malwarebytes

To remove JS/Agent Trojan completely, we recommend you to use Malwarebytes Anti-Malware. It detects and removes all files, folders, and registry keys of JS/Agent Trojan and several millions of other malware, like viruses, trojans, backdoors.

Remove JS/Agent Trojan manually

Manual removal of JS/Agent Trojan by inexperienced users may become a difficult task because it does not create entries in Add/Remove Programs under Control Panel, does not install browser extensions, and uses random file names. However, there are pre-installed instruments in the Windows system, that allow you to detect and remove malware without using third-party applications. One of them is Windows Malicious Software Removal Tool. It comes with Windows Update in Windows 11, 10, 8. 8.1. For older operating system you can download it here: 64-bit version | 32-bit version.

Remove JS/Agent Trojan using Windows Malicious Software Removal Tool

  1. Type mrt in the search box near Start Menu.
  2. Run mrt clicking on found item.
  3. Click Next button.
  4. Choose one of the scan modes Quick scan, Full scan, Customize scan (Full scan recommended).
  5. Click Next button.
  6. Click on View detailed results of the scan link to view the scan details.
  7. Click Finish button.

Remove JS/Agent Trojan using Autoruns

JS/Agent Trojan often sets up to run at Windows startup as an Autorun entry or Scheduled task.

  1. Download Autoruns using this link.
  2. Extract the archive and run Autoruns.exe file.
  3. In Options menu make sure there are checkboxes near Hide Empty Locations, Hide Microsoft Entries, and Hide Windows Entries.
  4. Search for suspicious entries with weird names or running from locations like: C:\{username}\AppData\Roaming.
  5. Right-click on suspicious entry and choose Delete. This will prevent the threat to run at startup.
  6. Switch to Scheduled Tasks tab and do the same.
  7. To remove files themselves, click on suspicious entries and choose Jump to Entry…. Remove files or registry keys found.

Remove files, folder and registry keys of JS/Agent Trojan

JS/Agent Trojan files and folders


JS/Agent Trojan registry keys

no information

Aliases of JS/Agent Trojan

JS:Downloader-FTX, HTML/TrojanDownloader.IFrame, Trojan-Downloader.HTML.IFrame.aje, Exploit:HTML/IframeRef.gen

How to protect from threats, like JS/Agent Trojan, in future

bitdefender internet security

Standard Windows protection or any decent third-party antivirus (Norton, Avast, Kaspersky) should be able to detect and remove JS/Agent Trojan. However, if you got infected with JS/Agent Trojan with existing and updated security software, you may consider changing it. To feel safe and protect your PC from JS/Agent Trojan on all levels (browser, e-mail attachments, Word or Excel scripts, file system) we recommend a leading provider of internet security solutions – BitDefender. Its solutions both for home and business users proved to be one of the most advanced and effective. Choose and get your BitDefender protection via the button below:

Download BitDefender
Previous articleHow to remove Water Ransomware and decrypt .water files
Next articleHow to remove Apex Legends Virus
James Kramer
Hello, I'm James. My website Bugsfighter.com, a culmination of a decade's journey in the realms of computer troubleshooting, software testing, and development. My mission here is to offer you comprehensive, yet user-friendly guides across a spectrum of topics in this niche. Should you encounter any challenges with the software or the methodologies I endorse, please know that I am readily accessible for assistance. For any inquiries or further communication, feel free to reach out through the 'Contacts' page. Your journey towards seamless computing starts here