Error sending request which program can be fixed. HTTP Error Codes: Decryption and Troubleshooting

Another CryptMix ransomware variant has been discovered by malware researchers and this one has been released under the name Error (also known as Error Virus) ransomware. The threat uses an attack method identical to that used by CryptMix and unfortunately this means that its victims will not have a chance to use the free decryption utility to recover their data. Encryption is not the only terrible thing about Error (also known as Error Virus) ransomware and other variants, because the authors of these threats have implemented additional measures whose purpose is to ensure that victims will have a minimal chance of recovering their files. To achieve this, Error ransomware will end the attack by disabling System Restore and cleaning up all stored shadow copies.

Attacking Error Ransomware does not only encrypt files and add new extensions to their names. In addition to all this, the threat will also encode the original filenames, thus making it difficult for the victim to see if they have lost any important files during the Error Ransomware attack. When Error Ransomware completes all the above tasks, it will proceed to the final stage of the attack – to create a document used to fulfill the requirements of the attacker. The author of Error Ransomware decided to use a simple text file named ‘_HELP_INSTRUCTIONS.TXT,’ which does not include the exact amount of money that the victims need to pay. Instead, it tells contact users [email protected], [email protected] or [email protected] if they want to know how their data can be recovered.

- Hey!
Attention! All your data has been encrypted!
For specific details, please send us an email with your ID number:
[email protected],
[email protected]
[email protected]
We will help you as soon as possible!
Decode-code-[deleted] Col'

Use the Spyhunter Malicious Software Removal Tool for detection purposes only. And .

Although the note does not mention anything about the ransom, you can be sure that the authors of Error Ransomware will not be willing to help you if you end up giving them something in return. Ransomware authors are usually after money from their victims, and therefore it is likely that victims who choose to get in touch will be asked to pay an unhealthy amount of bitcoins in exchange for a decryptor.

Tips for Victims Error ransomware is an attempt to overcome the problem with alternative file recovery methods that do not involve funding future cyber scam projects. Naturally, before trying to get any of your data, you should make sure to prevent Ransomware from causing more damage. The best way to do this is to use anti-malware software to wipe all malicious files from your computer.

Removal instructions manual Error.

Removing Error related apps

Remove from Windows 7 and Windows Vista

  1. Click the Start button and select Control Panel.
  2. Select uninstall program and remove Error.

Remove from Windows XP

  1. Open the Start Menu and Control Panel.
  2. Select Add/Remove Programs and remove Error.

Remove from Windows 8

  1. Simultaneously press the Windows key + R and type in control panel.
  2. Press Enter and proceed to uninstall a program.
  3. Find unwanted applications and remove Error.

Removing Browsers Error

Remove Error from Internet Explorer

Remove Error from Mozilla Firefox

Use the Spyhunter Malicious Software Removal Tool for detection purposes only. And .

Remove Error from Google Chrome


* The SpyHunter scanner published on this site is intended to be used only as a detection tool. . To use the uninstall feature, you will need to purchase the full version of SpyHunter. If you want to remove SpyHunter, .

Have you recently downloaded software packages from the Internet? This is the most commonly used infiltration technique right now. Many PC users prefer to install software packages, which saves time and effort. The problem is, you have to pay close attention to the process. Select the Advanced/Custom option in the installation wizard. Remember that skipping the installation steps is a critical mistake. There can be a whole bunch of viruses attached to safe programs in the package. If you are not careful, you will install infections as well. It is much easier to prevent an infiltration than it is to remove a virus. Save yourself and be careful. Also, check the EULA (End User License Agreement) of what you download. The same piece of advice goes for terms and conditions. Take your time in installation and don't overlook possible threats. Also, stay away from illegal websites, torrents and ads. More often than not, those are unreliable.

Why are these ads dangerous?

Warning, multiple virus scanners found possible malware in Error.

Antivirus softwareVersionDetection
McAfee5.600.0.1067
Kingsoft AntiVirus2013.4.9.267 Win32.Troj.Generic.a.(kcloud)
Tencent1.0.0.1 Win32.Trojan.Bprotector.Wlfh
Qihoo-3601.0.0.1015 Win32/Virus.RiskTool.825
ESET NOD328894 Win32/Wajam.A
NANO AntiVirus0.26.0.55366 Trojan.Win32.Searcher.bpjlwd
VIPRE Antivirus22702 Wajam (fs)
Baidu International3.5.1.41473 Trojan.Win32.Agent.peo
Dr. Web Adware.Searcher.2467
Malwarebytes1.75.0.1 PUP.Optional.Wajam.A
McAfee-GW-Edition2013 Win32.Application.OptimizerPro.E

Error behavior

  • Distributes via pay-per-install or bundled with third party software.
  • Installs itself without permissions
  • Shows fake security warnings, pop-ups and ads.
  • Error deactivates the installed software.
  • Error shows commercial advertisement
  • Changes user Main page
  • Browser redirection to infected pages.
  • Steals or uses your sensitive data
  • Change desktop and browser settings.
  • Download MalwareBytes
  • Download Plumbytes
  • Download Spyhunter

Error is carried out by Windows OS versions

  • Windows 10 20%
  • Windows 8 37%
  • Windows 7 19%
  • Windows Vista 8%
  • Windows XP 16%

Geography Error

Eliminate Error from Windows

Remove from Windows XP Error:


Remove Error from your Windows 7 and Vista:


Erase Error from Windows 8 and 8.1:


Remove from your browsers Error

Error Removal from Internet Explorer


Erase Error from Mozilla Firefox


Stop Error from Chrome


Which of the fans of wandering around the expanses of the Internet has not encountered the appearance of a “400: Bad request” error in the browser? True, not all surfers know what it means and why it occurs. Now we will try to clarify this situation.

400 Bad request: what does this error mean?

As it is believed in the computer world, error number 400 is purely user-based when entering an incorrect request (URL address) to access a specific site on the World Wide Web. Let us disagree with this.

Of course, you can enter an incorrect address, but sometimes even with the correct address or the link you open, the “HTTP: 400 Bad request” error appears again and again. There can be many reasons for this. This is especially often manifested when accessing personal hosting hosted on different, independent servers from different providers. What is the reason?

Query syntax errors

Indeed, one of the root causes can be called a violation of the correctness of entering the page address. Let's take a simple example: when trying to access the same Mail.ru mail server, a Ukrainian user can enter a URL in the address bar, as if corresponding to his region (in this case, let's say that this is the mail.ua address).

In fact, such a site with a postal service does not exist in nature. It is clear that any Internet browser will immediately display the message “400: Bad request”. But even with this formulation of the question, you can still find a bunch of reasons for the occurrence of an access error.

400: Bad request Nginx error problem

The Nginx system itself is either a specific mail proxy server or a web server running under UNIX systems.

As a rule, errors of this kind are associated with an incorrect server response for a request from a specific IP address. The results of errors are written to a special LOG file, after which they are automatically entered into the firewall as unreliable. Thus, work is disrupted in hosting, regardless of which operating system or browser is used in this situation.

Firewall influence

As you already know, the "400: Bad request" error often occurs when a request is blocked by a firewall.

The way out of this situation may be to add the address of the site or access device to the list of exceptions. For Windows systems, this is done by accessing the security system menu located in the standard Control Panel.

In principle, there is nothing wrong even to disable the firewall completely (of course, if you have a powerful anti-virus package). On this account, too, some explanations are needed.

List of antivirus exclusions

As a rule, the most common standard anti-virus packages have their own built-in firewall. It can also block potentially unsafe or unwanted content.

Error 400 (Bad Request) is the HTTP response code , which means that the server was unable to process the request sent by the client due to invalid syntax. These HTTP response codes represent complex relationships between a client, a web application, a server, and often multiple third-party web services. Because of this, finding the cause of an error can be difficult, even within a controlled development environment.

In this article, we will analyze what the 400 Bad Request error means (translated as “ Bad request"), and how to fix it.

Server side or client side?

All HTTP response codes in the 4xx category are considered client-side errors. Despite this, the appearance of a 4xx error does not necessarily mean that the problem is somehow related to the client, which refers to the web browser or device used to access the application. Often, if you are trying to diagnose a problem with your application, you can immediately ignore most of the client code and components, such as HTML , cascading style sheets ( css), client-side JavaScript code, and so on. This also applies to more than just websites. Many smartphone apps that have a modern user interface are web apps.

On the other hand, a 400 Bad Request error means that the request sent by the client was invalid for one reason or another. The user client may try to download a file that is too large, the request may be malformed, the HTTP request headers may be incorrect, and so on.

We will look at some of these scenarios ( and potential solutions) below. But keep in mind: we can't unequivocally rule out either the client or the server as the source of the problem. In these cases, the server is a network entity that generates a 400 Bad Request error and returns it as an HTTP response code to the client, but the client may be responsible for the problem.

Start with a thorough app backup

It is important to make a full backup of your application, database, etc. before making any edits or changes to the system. Even better, if it is possible to create a complete copy of the application on an additional intermediate server that is not publicly available.

This approach will provide a clean testing ground in which to work out all possible scenarios and potential changes to fix or otherwise problem without compromising the security or integrity of your "live" application.

Diagnosing the 400 Bad Request Error

A 400 Bad Request error means that the server ( remote computer) cannot process the request sent by the client (browser ) due to a problem that the server treats as a problem on the client side.

There are many scenarios where a 400 Bad Request error can appear in an application. Below are some of the more likely cases:

  • The client accidentally (or intentionally) sends information that is intercepted by the spoof router. Some web applications look for special HTTP headers to process requests and make sure the client is not doing something malicious. If the expected HTTP header is not found or is incorrect, then a 400 Bad Request error is a possible result.
  • The client may be uploading a file that is too large. Most servers or applications have a file upload size limit. This prevents clogging the feed and other server resources. In many cases, the server will return a 400 Bad Request error when the file is too large and therefore the request cannot be completed.
  • The client is requesting an invalid URL. If the client sends a request to the wrong URL ( incorrectly drafted), which can result in a 400 Bad Request error.
  • The client is using invalid or obsolete cookies. This is possible because the local cookie in the browser is the session identifier. If a particular session token matches a request token from another client, then the server/application may interpret this as a malicious act and issue a 400 Bad Request error code.

Fixing problems on the client side

Error 400 Bad Request ( try later) it's better to start with a client-side fix. Here are some tips on what to try on the browser or device that is giving the error.

Check the requested URL

The most common cause of the 400 Bad Request error is simply entering an invalid URL. Domain names ( e.g. site) are case insensitive, so a link written in mixed case such as works the same way as the normal lowercase version of . But the parts of the URL that are located after the domain name are case sensitive. Unless the application/server specifically preprocesses all URLs and lowercases them before executing the request.

It is important to check the URL for inappropriate special characters that should not be in it. If the server receives an invalid URL, it will respond with a 400 Bad Request error.

Clear relevant cookies

One potential cause of a 400 Bad Request error is invalid or duplicate local cookies. Cookies in HTTP are small pieces of data stored on a local device that are used by websites and web applications to "remember" a particular browser or device. Most modern web applications use cookies to store browser- or user-specific data, identifying the customer and making next visits faster and easier.

But cookies storing session information about your account or device can conflict with another session token from another user, giving either of you (or both of you) a 400 Bad Request error.

In most cases, it is sufficient to consider only your application for cookies that are related to the site or web application that is throwing the 400 Bad Request error.

Cookies are stored based on the web application's domain name, so you can only remove cookies that match the site's domain, leaving the rest of the cookies intact. But if you're not familiar with manually deleting certain cookies, it's much easier and safer to clear all cookies at once.

This can be done in different ways depending on the browser you are using:

  • Google Chrome;
  • Internet Explorer;
  • Microsoft Edge;
  • Mozilla Firefox;
  • safari.

Uploading a smaller file

If you're getting a 400 Bad Request error when downloading a file, try to work correctly on a smaller file. This includes "downloads" of files that aren't downloadable from your local machine. Even files sent from other computers are considered "downloads" from the point of view of the web server your application is running on.

Sign out and sign in

Try logging out and back in. If you have recently cleared your browser cookies, this will automatically log you out the next time the page is loaded. Just try logging back in to see if the system worked correctly.

Also, the application might run into a problem with your previous session being just a string that the server sends to the client to identify the client on future requests. As with other data, the session token ( or session string) is stored locally on your device in cookies and transmitted from the client to the server on every request. If the server decides that the session token is invalid or compromised, you may get a 400 Bad Request error.

In most web applications, logging out and logging back in will regenerate the local session token.

Debugging on common platforms

If you are using common software packages on the server that give a 400 Bad Request error, study the stability and functionality of these platforms. The most common content management systems such as WordPress, Joomla! and Drupal are well tested in their basic versions. But once you start changing the PHP extensions they use, it's very easy to create unexpected problems that result in a 400 Bad Request error.

Roll back the latest changes

If you upgraded your content management system just before the 400 Bad Request error, consider rolling back to the previous version that was installed as the quickest and easiest way remove 400 bad request error.

Likewise, any extensions or modules that have been updated may cause errors on the server side, so rolling back to previous versions of these extensions may also help.

But in some cases, CMS do not provide the ability to rollback to previous versions. This is usually the case with popular platforms, so don't be afraid if you can't find an easy way to revert to an older version of a particular software platform.

Remove new extensions, modules or plugins

Depending on the specific CMS that the application uses, the names of these components will vary. But in all systems, they serve the same purpose: to improve the capabilities of the platform relative to its standard functionality.

At the same time, keep in mind that extensions can somehow take full control of the system, make changes to the PHP code, HTML, CSS, JavaScript or the database. Therefore, it may be a wise decision to remove any new extensions that have been recently added.

Check for unintentional changes in the database

Even if you uninstalled an extension through the CMS control panel, this does not guarantee that the changes it made were completely undone. This is the case for many WordPress extensions that are given full access to the database.

An extension can modify database records that are not "owned" by it, but are created and managed by other extensions ( or even the CMS itself). In such cases, the module may not know how to roll back changes made to database records.

I personally encountered such cases several times. Therefore, the best way is to open the database and manually look through the tables and records that may have been modified by the extension.

Finding problems on the server side

If you are sure that the 400 Bad Request error is not related to the CMS, here are some additional tips that may help you find the problem on the server side.

400 bad request error is a fairly common problem that can occur when trying to access the Internet. There are two interesting facts about this issue:

  • Routebuildservice 400 bad request can occur on absolutely any Internet browser. When this error occurs, very rarely a simple browser change can help.
  • The causes of trouble can be completely different.

The translation of "routebuildservice 400 bad request" means something like "invalid request", and does not help in the treatment at all. Therefore, you should carefully read the material below in order to understand how to fix a 400 bad request.

Correcting the situation

It is interesting that the solution to such a problem may be completely unrelated to the user, his equipment and settings on it - perhaps there were some difficulties on the part of the provider or the service provider company is currently working to improve its lines.

Of course, a normal organization is obliged to inform its customers about such a situation, but in practice this does not always happen. Therefore, the first step in resolving the question “what is a 400 bad request” is the following:

  1. Try to access the official website or forum of the ISP you are using - perhaps important information is provided there.
  2. Call friends who use a similar service and find out if they have a similar problem.
  3. Contact the representative of the provider and get all the necessary answers.

In general, this stage is recommended to be carried out first of all if there is any problem with the Internet connection. Only after receiving a response that the situation arose from the user, you can proceed to the rest of the treatment options.

Sometimes this error can look like this - 400 bad request request header or cookie too large. There is one important word in this sentence - "Cookie". In this case, it is from him that one should build on, searching for a solution to the error.

The treatment is quite simple:

  1. Open your favorite internet browser.
  2. We go to the settings menu.
  3. We are looking for the item responsible for cookies (it is located in different places for each browser).
  4. Delete this element, save and restart the program.

Did not help? We pay attention to the installed antivirus program. For some people, it will be a revelation that some software of this type uses an additional built-in firewall in its work, which can cause this disease. Therefore, it is necessary to look for the reason in this application. Usually in such programs there is a menu of options where you can see the line "rules for applications" or something similar. So, it is in this place that you need to go and increase the degree of trust in the outgoing and incoming connection.

A similar situation may arise with the standard firewall from Microsoft, which this company equips its operating systems with. What needs to be done:

  1. The first step is to disable this program: "Start" - "Control Panel" - "System" - "Firewall" - "On / Off".
  2. If this does not help, then the next step: the same path, only at the end go to the "permissions to launch programs" menu, where you must enter the name of the Internet browser manually.

Such a nuisance is unique in that its name makes it difficult to understand which treatment options to use. Therefore, you should immediately proceed to the above described technique, and not waste time searching for an answer to the question - "400 bad request - what does this mean"?