Severity scale:  
  (90/100)

Remove TrojanDownloader.VBS.Agent (Virus Removal Instructions) - Free Guide

removal by Jake Doevan - - | Type: Malware

TrojanDownloader.VBS.Agent is a type of malware that tries to exploit CVE-2006-0003 vulnerability on malicious websites

TrojanDownloader.VBS.Agent

TrojanDownloader.VBS.Agent is a malicious VBScript[1] that is present in a variety of hacked or specially crafted websites. Once executed, the malware is capable of executing arbitrary code commands, which may allow threat actors to remotely control the infected machine, install other viruses, or steal personal information of the victim.

TrojanDownloader:VBS/Agent virus targets a critical CVE-2006-0003[2] vulnerability that is found within RDS.Dataspace ActiveX environment, a flaw that was patched by Microsoft with the MS06-014 security update. Therefore, users who fail to update their systems are the most likely to get infected by the malware.

Unfortunately, the threat does not display any symptoms, although users might spot suspicious redirects or intrusive ads on various sites that they visit, software or OS crashes, BSoDs, a slowdown of the device, etc. Nevertheless, you should scan your computer for malware if you want to remove TrojanDownloader.VBS.Agent malware and avoid dangerous consequences like identity theft or money loss.

Name TrojanDownloader.VBS.Agent
Type VBScript
Category Malware, trojan
Symptoms Usually none, but victims might see redirects to suspicious sites, software crashes, BSoDs, etc.
Infiltration CVE-2006-0003 vulnerability on malicious sites or emails
Termination  Use reputable security software, such as Reimage Reimage Cleaner or Malwarebytes
Recovery To fix virus damage, scan your computer with Reimage Reimage Cleaner

TrojanDownloader:VBS/Agent is a heuristic[3] name for a particular type of malware, so multiple AV engines recognize the threat differently. For example:[4]

  • Script:SNH-gen [Trj]
  • HEUR:Trojan-Downloader.VBS.SLoad.gen
  • VBS/Agent.cq
  • VBS/Downloader
  • Trojan.Gen.NPE, etc.

TrojanDownloader:VBS/Agent can be encountered on a variety of websites where VBScript is embedded. For that reason, hackers create malicious copies of original sites or create their own. Later on, adware or similar, potentially unwanted programs might be redirecting victims to these dangerous websites. Alternatively, bad actors can also attach the .html document to the spam email.

Once users visit the malicious site or open the HTML document within the phishing email, the code is executed, and the scrips start looking for the CVE-2006-0003 vulnerability. If detected, users instantaneously get infected with TrojanDownloader.VBS.Agent.

Because of TrojanDownloader.VBS.Agent mainly works as malware downloader, secondary payloads may include other trojans, backdoors, cryptominers, data stealers, and even ransomware. The latter virus locks all personal files on the device and asks for ransom in Bitcoins or another cryptocurrency. Thus, this type of infection might result in permanent file loss.

To avoid such consequences, you should take care of TrojanDownloader.VBS.Agent removal immediately. Because the malware does not show any symptoms (or very minimal), you should use anti-virus software in order to determine whether you are infected or not. Due to the nature of the threat, experts[5] also suggest scanning the infected machine with Reimage Reimage Cleaner to fix virus damage.

TrojanDownloader.VBS.Agent trojan
TrojanDownloader.VBS.Agent is a heuristic detection for a trojan horse that can be installed once CVE-2006-0003 flaw is exploited

Update your software and the OS before malware can infect your computer

Security patches are among the most important security measures against malware infections. Unfortunately, many users go by the principle “it never happened before, so why should it now?” Updates are crafted in a way that would improve the performance, increase stability, and prevent zero-day vulnerabilities from being exploited. Therefore, thinking that patches are worthless is simply silly.

Therefore, make sure you set software updates to automatic option, be it for the installed programs (especially Adobe Flash and Java) or the operating system itself. Additionally, never postpone in installation for hours, sometimes it only takes one redirect to a malicious site for VBScript to be executed.

Additionally, be aware that crooks can clip the malicious .html or .vbs attachments to spam email emails and use bots to distribute them all over the world. Thus, be very careful when dealing with spam email attachments or hyperlinks – malware can slip in that way. Finally, do not forget to run reputable anti-malware software at all times.

Delete TrojanDownloader.VBS.Agent from your computer with powerful anti-virus software

Do not attempt manual TrojanDownloader.VBS.Agent removal, as this malware performs a variety of system changes, such as adding malicious files, scheduling new tasks, modifying the registry, shutting down security software, modifying system startup, etc. All these elements are located in different parts of the operating system, and reverting these changes manually would be impossible for a regular user.

Thus, remove TrojanDownloader:VBS/Agent virus with the help of security software – you can use Reimage Reimage Cleaner or similar tool. However, as we mentioned above, this malware tries to detect and disable AV engine, so you should access Safe Mode with Networking, as explained below. Additionally, to return Windows OS back to normal and fix virus-affected system files, scan your PC with Reimage Reimage Cleaner .

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Compatible with Microsoft Windows Supported versions Compatible with OS X Supported versions
What to do if failed?
If you failed to remove virus damage using Reimage Reimage Cleaner, submit a question to our support team and provide as much details as possible.
Reimage Reimage Cleaner has a free limited scanner. Reimage Reimage Cleaner offers more through scan when you purchase its full version. When free scanner detects issues, you can fix them using free manual repairs or you can decide to purchase the full version in order to fix them automatically.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage, try running SpyHunter 5.
Alternative Software
Different software has a different purpose. If you didn’t succeed in fixing corrupted files with Reimage Cleaner, try running Combo Cleaner.

To remove TrojanDownloader.VBS.Agent, follow these steps:

Remove TrojanDownloader.VBS.Agent using Safe Mode with Networking

To remove TrojanDownloader.VBS.Agent from your computer safely, enter Safe Mode with Networking as explained below:

  • Step 1: Reboot your computer to Safe Mode with Networking

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Safe Mode with Networking from the list Select 'Safe Mode with Networking'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Networking in Startup Settings window. Select 'Enable Safe Mode with Networking'
  • Step 2: Remove TrojanDownloader.VBS.Agent

    Log in to your infected account and start the browser. Download Reimage Reimage Cleaner or other legitimate anti-spyware program. Update it before a full system scan and remove malicious files that belong to your ransomware and complete TrojanDownloader.VBS.Agent removal.

If your ransomware is blocking Safe Mode with Networking, try further method.

Remove TrojanDownloader.VBS.Agent using System Restore

You can also attempt virus removal by using System Restore feature:

  • Step 1: Reboot your computer to Safe Mode with Command Prompt

    Windows 7 / Vista / XP
    1. Click Start Shutdown Restart OK.
    2. When your computer becomes active, start pressing F8 multiple times until you see the Advanced Boot Options window.
    3. Select Command Prompt from the list Select 'Safe Mode with Command Prompt'

    Windows 10 / Windows 8
    1. Press the Power button at the Windows login screen. Now press and hold Shift, which is on your keyboard, and click Restart..
    2. Now select Troubleshoot Advanced options Startup Settings and finally press Restart.
    3. Once your computer becomes active, select Enable Safe Mode with Command Prompt in Startup Settings window. Select 'Enable Safe Mode with Command Prompt'
  • Step 2: Restore your system files and settings
    1. Once the Command Prompt window shows up, enter cd restore and click Enter. Enter 'cd restore' without quotes and press 'Enter'
    2. Now type rstrui.exe and press Enter again.. Enter 'rstrui.exe' without quotes and press 'Enter'
    3. When a new window shows up, click Next and select your restore point that is prior the infiltration of TrojanDownloader.VBS.Agent. After doing that, click Next. When 'System Restore' window shows up, select 'Next' Select your restore point and click 'Next'
    4. Now click Yes to start system restore. Click 'Yes' and start system restore
    Once you restore your system to a previous date, download and scan your computer with Reimage Reimage Cleaner and make sure that TrojanDownloader.VBS.Agent removal is performed successfully.

Finally, you should always think about the protection of crypto-ransomwares. In order to protect your computer from TrojanDownloader.VBS.Agent and other ransomwares, use a reputable anti-spyware, such as Reimage Reimage Cleaner , SpyHunter 5Combo Cleaner or Malwarebytes

About the author

Jake Doevan
Jake Doevan - Computer technology expert

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