IDP.HEUR.26 Malware: A Complete Removal Guide

IDP.HEUR.26 - What is it?
IDP.HEUR.26 - What is it?
Written by Brendan Smith
IDP.HEUR.26 is a generic detection name employed by Avast antivirus software to identify files or software behavior that may potentially be malicious. This detection signifies that the Avast software has identified behavior that aligns with the behavior observed in certain types of malware, including trojans, viruses, or worms.

The inclusion of “IDP” in the detection name represents “Identity Protection,” indicating that the detection is rooted in analyzing the behavior of the file rather than relying solely on its signature or known attributes. The “HEUR” portion signifies “Heuristic,” implying that the detection is carried out using a collection of rules and algorithms specifically designed to identify potential threats that are previously unknown or unseen.

The specific number “26” serves as a unique identifier designated to this specific type of detection by Avast. It is crucial to acknowledge that not all detections with this name are inherently malicious, as certain legitimate software may display behavior that can trigger this particular type of detection.

Brendan Smith
Brendan Smith
IT Security Expert
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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Any type of malware exists with the only target – generate profits on you1. And the programmers of these things are not thinking of morality – they utilize all available methods. Taking your data, getting the payments for the promotions you watch for them, and exploiting your CPU and GPU to mine cryptocurrencies is not the full list of what they do. Do you like to be a riding horse? That is a rhetorical question.

What does the pop-up with IDP.HEUR.26 detection mean?

AVG consistently flags IDP.HEUR.26 virus for detection. It seems to re-enable itself despite having previously turned off AVG’s passive scanning and automatic downloads. My main antivirus software is Norton, and after conducting multiple scans with it, it hasn’t identified any issues. I’m inclined to believe it might be a false positive.

I’ve relocated the files to quarantine on numerous occasions, but they keep reappearing. Is there any possibility that this file could pose any genuine threat?from reddit

The IDP.HEUR.26 detection you can see in the lower right corner is displayed to you by Avast or AVG. That anti-malware program is good at scanning but prone to be unreliable. It is defenseless to malware invasions. It has a glitchy user interface and problematic malware removal features. Therefore, the pop-up states concerning the IDP.HEUR.26 is rather just a notification that Defender has found it. You will likely need to use another anti-malware program to remove it.

The exact IDP.HEUR.26 infection is a nasty thing. It digs into your computer disguised as a part of something legitimate or as a part of the tool you downloaded from a forum. After that, it makes everything weakens your system. At the end of this “party”, it downloads other malicious things – ones that are wanted by cybercriminals who control this virus. Hence, it is almost impossible to predict the effects of IDP.HEUR.26 actions. And unpredictability is one of the most unwanted things when we are talking about malware. That’s why it is better not to choose at all and don’t let the malware complete its task.

Threat Summary:

DetailsIDP.HEUR.26 – IDP (Intrusion Detection Protection), HEUR stands for Heuristic, indicating the method of detection. The number 26 represents a specific heuristic detection, with the first two elements of the detection considered more significant.
Fix ToolSee If Your System Has Been Affected by IDP.HEUR.26 Trojan

Is IDP.HEUR.26 dangerous?

As I have pointed out previously, non-harmful malware does not exist. And IDP.HEUR.26 is not an exclusion. This malware changes the system setup and alters the Group Policies and Windows registry. All of these elements are crucial for proper system functioning, even in cases when we are not talking about system safety. Therefore, the virus IDP.HEUR.26 contains, or which it will download after some time, will squeeze out maximum revenue from you. Cybercriminals can grab your personal information and sell it on the black market. Using adware and browser hijacker functions embedded in IDP.HEUR.26 virus, they can make money by showing you the ads. Each view gives them a penny, but 100 views per day = $1. 1000 victims who watch 100 banners per day – $1000. Easy math, but sad conclusions. It is a bad choice to be a donkey for crooks.

How did I get this virus?

It is hard to trace malware’s origins on your computer. Nowadays, things are mixed, and spreading ways chosen by adware five years ago can be utilized by spyware these days. But if we abstract from the exact spreading tactic and think of why it works, the answer will be pretty uncomplicated – low level of cybersecurity awareness. Individuals press on advertisements on weird websites, open the pop-ups they receive in their web browsers, and call “Microsoft tech support” believing that the odd banner that says about malware is true. It is very important to recognize what is legitimate – to prevent misunderstandings when figuring out a virus.

Microsoft Tech Support Scam

Microsoft Tech Support Scam

Nowadays, there are two of the most extensive ways of malware distribution – lure e-mails and injection into a hacked program. While the first one is not so easy to avoid – you should know a lot to recognize a counterfeit – the 2nd one is easy to solve: don’t utilize cracked applications. Torrent trackers and other sources of “free” applications (which are paid but with a disabled license checking) are a giveaway point of malware. And IDP.HEUR.26 is just among them.

How to remove the IDP.HEUR.26 from my PC?

IDP.HEUR.26 malware is very difficult to eliminate by hand. It places its data in multiple places throughout the disk and can get back itself from one of the elements. In addition, various alterations in the Windows registry, networking settings, and Group Policies are quite hard to identify and change to the initial. It is better to use a special program – exactly, an anti-malware app. GridinSoft Anti-Malware will fit the most ideal for virus elimination purposes.

Remove IDP.HEUR.26 with Gridinsoft Anti-Malware

We have also been using this software on our systems ever since, and it has always been successful in detecting viruses. It has blocked the most common Trojans as shown from our tests with the software, and we assure you that it can remove IDP.HEUR.26 as well as other malware hiding on your computer.

Gridinsoft Anti-Malware - Main Screen

To use Gridinsoft for remove malicious threats, follow the steps below:

1. Begin by downloading Gridinsoft Anti-Malware, accessible via the blue button below or directly from the official website

2.Once the Gridinsoft setup file (setup-gridinsoft-fix.exe) is downloaded, execute it by clicking on the file.


3.Follow the installation setup wizard's instructions diligently.

Gridinsoft Setup Wizard

4. Access the "Scan Tab" on the application's start screen and launch a comprehensive "Full Scan" to examine your entire computer. This inclusive scan encompasses the memory, startup items, the registry, services, drivers, and all files, ensuring that it detects malware hidden in all possible locations.

Scan for IDP.HEUR.26 Trojans

Be patient, as the scan duration depends on the number of files and your computer's hardware capabilities. Use this time to relax or attend to other tasks.

5. Upon completion, Anti-Malware will present a detailed report containing all the detected malicious items and threats on your PC.

The IDP.HEUR.26 was Found

6. Select all the identified items from the report and confidently click the "Clean Now" button. This action will safely remove the malicious files from your computer, transferring them to the secure quarantine zone of the anti-malware program to prevent any further harmful actions.

The IDP.HEUR.26 has been removed

8. If prompted, restart your computer to finalize the full system scan procedure. This step is crucial to ensure thorough removal of any remaining threats. After the restart, Gridinsoft Anti-Malware will open and display a message confirming the completion of the scan.

Remember Gridinsoft offers a 6-day free trial. This means you can take advantage of the trial period at no cost to experience the full benefits of the software and prevent any future malware infections on your system. Embrace this opportunity to fortify your computer's security without any financial commitment.

Trojan Killer for “IDP.HEUR.26” removal on locked PC

In situations where it becomes impossible to download antivirus applications directly onto the infected computer due to malware blocking access to websites, an alternative solution is to utilize the Trojan Killer application.

Trojan Killer - Main View

There is a really little number of security tools that are able to be set up on the USB drives, and antiviruses that can do so in most cases require to obtain quite an expensive license. For this instance, I can recommend you to use another solution of GridinSoft - Trojan Killer Portable. It has a 14-days cost-free trial mode that offers the entire features of the paid version. This term will definitely be 100% enough to wipe malware out.

Trojan Killer is a valuable tool in your cybersecurity arsenal, helping you to effectively remove malware from infected computers. Now, we will walk you through the process of using Trojan Killer from a USB flash drive to scan and remove malware on an infected PC. Remember, always obtain permission to scan and remove malware from a computer that you do not own.

Step 1: Download & Install Trojan Killer on a Clean Computer:

1. Go to the official GridinSoft website ( and download Trojan Killer to a computer that is not infected.

Download Trojan Killer

2. Insert a USB flash drive into this computer.

3. Install Trojan Killer to the "removable drive" following the on-screen instructions.

Install Trojan Killer to Removable Drive

4. Once the installation is complete, launch Trojan Killer.

Step 2: Update Signature Databases:

5. After launching Trojan Killer, ensure that your computer is connected to the Internet.

6. Click "Update" icon to download the latest signature databases, which will ensure the tool can detect the most recent threats.

Click Update Button

Step 3: Scan the Infected PC:

7. Safely eject the USB flash drive from the clean computer.

8. Boot the infected computer to the Safe Mode.

9. Insert the USB flash drive.

10. Run tk.exe

11. Once the program is open, click on "Full Scan" to begin the malware scanning process.

Searching IDP.HEUR.26 Virus

Step 4: Remove Found Threats:

12. After the scan is complete, Trojan Killer will display a list of detected threats.

Searching IDP.HEUR.26 Finished

13. Click on "Cure PC!" to remove the identified malware from the infected PC.

14. Follow any additional on-screen prompts to complete the removal process.

Restart needed

Step 5: Restart Your Computer:

15. Once the threats are removed, click on "Restart PC" to reboot your computer.

16. Remove the USB flash drive from the infected computer.

Congratulations on effectively removing IDP.HEUR.26 and the concealed threats from your computer! You can now have peace of mind, knowing that they won't resurface again. Thanks to Gridinsoft's capabilities and commitment to cybersecurity, your system is now protected.

Avast Detections

How to Remove IDP.HEUR.26 Virus

Name: IDP.HEUR.26

Description: If you have seen a message showing the “IDP.HEUR.26 found”, it seems that your system is in trouble. The IDP.HEUR.26 virus was detected, but to remove it, you need to use a security tool. Windows Defender, which has shown you this message, has detected the malware. However, Defender is not reliable - it is prone to malfunction when it comes to malware removal. Getting the IDP.HEUR.26 malware on your PC is an unpleasant thing, and removing it as soon as possible must be your primary task.

Operating System: Windows

Application Category: Trojan

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  1. Read about malware types on GridinSoft Threat encyclopedia.

About the author

Brendan Smith

I'm Brendan Smith, a passionate journalist, researcher, and web content developer. With a keen interest in computer technology and security, I specialize in delivering high-quality content that educates and empowers readers in navigating the digital landscape.

With a focus on computer technology and security, I am committed to sharing my knowledge and insights to help individuals and organizations protect themselves in the digital age. My expertise in cybersecurity principles, data privacy, and best practices allows me to provide practical tips and advice that readers can implement to enhance their online security.

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