Post by moon125 on Nov 2, 2024 3:21:28 GMT
Over many years of practice, we can say with confidence that, in general, malicious code (virus) gets to the site through the content management system (CMS). This happens like this: the user downloads a document from an unknown source and publishes it without checking it with an antivirus. Or the user downloads a document from an official source / receives a document from a trusted person with an error that cannot be visually seen. This is how the site becomes vulnerable.
Another option: you can download a "healthy" file to an infected computer. And when you transfer the file to the next recipient, there is a chance that you will send the file along with the virus. In this case, the harm will come from your computer. You need to regularly check it with an antivirus and treat it.
A site can become vulnerable to shopify website design viruses due to poorly developed code. Attackers are constantly in the search for such sites. In short, this is how it happens: having found a vulnerability, hackers introduce malicious code to the site. Check and protect your site with modern antiviruses to avoid getting into the risk zone.
The consequences of malicious code can be anything:
spam mailing for subscribed users,
replacement of images, videos and text content,
transfer of passwords and user/client data to third parties,
viewing reports and orders by attackers,
gaining access to your employees' mailboxes,
changing the appearance of the website's web pages,
redirect (redirection) to other sites,
distribution of advertising on the website pages,
and other harm that disrupts normal operating procedures.
Another reason for hacking may be a simple user password for logging into the site management system. Having gained access, the attacker subjects the site to any changes, even if the user only had access to edit the text content of the pages.
How to know if a website has a virus
The first ones who can tell you about the presence of a virus on the site are the browser, WebMaster, desktop antivirus. To make sure about the presence or absence of a virus, you need to check the site using the Dr. WEB virus removal utility. This utility is familiar with all known computer and web viruses. Finds and displays malicious code. Determines whether there are links to fraudulent sites. You can download the Dr. Web antivirus from the official resource.
How to recognize malicious code/file
Keep in mind that a website consists not only of lines of code, but also of folders with files. Commercial websites and corporate portals are of more interest to attackers than private computers. Company websites store customer databases, legal documents and other secret information that can be sold profitably.
For example, the executable file with the .exe extension may be subject to changes. In this case, the virus is hidden in it and the search for the source of harm becomes more complicated. A desktop antivirus may not see changes in the site files, because a computer virus differs from a virtual one.
How to check a website for viruses? For example, official hosting providers already have an antivirus installed in the control panel. With its help, you can check the website data for malicious files. Or contact an IT company that is engaged in website development, they definitely know how to check a resource for viruses.
What to do if viruses are found on the site
Restore your site backup. On average, technical support specialists back up your site once a month. You are lucky if your site backup was made long before the malicious code appeared. This will eliminate the need to manually treat the site.
Software update, CRM. CRM developers are constantly working to eliminate possible vulnerabilities in the system, fix them and release updates. Install updates from the official website of your CRM to increase the level of protection.
Remove pirated plugins (software module for expanding the capabilities of the system). We recommend installing extensions from official sites. However, not everyone follows this rule and installs free analogs from unknown developers. Most likely, such plugins already contain hidden viruses. Remove plugins, check the system for viruses and install the original software.
Change admin passwords. To access the site, intruders can hack your mail or plant a virus on your computer. Generate complex passwords with letters, numbers and special characters. But if you notice suspicious changes or pop-ups, it is recommended to check your computer for viruses, change passwords for mail accounts, the site control panel and the server.
Set access rights to site files. By setting up rights, you can limit / configure the list of employees who can view, execute and change the code.
Remove malicious code manually. Antivirus showed infected sections of code. If you have skills in working with the server console, then proceed to remove malicious code / file manually. You need to look for the following:
We delete files like wzxp.php, which by their name are clearly not included in the regular CMS files;
Check your .htaccess files to make sure they don't contain any foreign code or redirects to other sites;
Remove the base64 code. It may look like this: "DFJKsdkfjghJhHvKkOmHtgdfRcybJmLpIhVyfTCrfdxfCrtDFcHGhbBjhIJkMOkoI";
Check if eval() or preg_replace() function is used with key in first argument.
How to protect your website from viruses
We share with you a checklist tested by personal experience:
Set up the creation and storage of site backups.
Apply CMS updates and security patches that automatically find and fix site vulnerabilities.
Use only original plugins to extend browser functionality.
Change administrator passwords regularly.
Set access rights to site files or restrict access by allowing only those using their IP address to change the site content.
Check your computer and website regularly for viruses.
You can use these tips yourself. Or trust the security of your services to professional admins.
Another option: you can download a "healthy" file to an infected computer. And when you transfer the file to the next recipient, there is a chance that you will send the file along with the virus. In this case, the harm will come from your computer. You need to regularly check it with an antivirus and treat it.
A site can become vulnerable to shopify website design viruses due to poorly developed code. Attackers are constantly in the search for such sites. In short, this is how it happens: having found a vulnerability, hackers introduce malicious code to the site. Check and protect your site with modern antiviruses to avoid getting into the risk zone.
The consequences of malicious code can be anything:
spam mailing for subscribed users,
replacement of images, videos and text content,
transfer of passwords and user/client data to third parties,
viewing reports and orders by attackers,
gaining access to your employees' mailboxes,
changing the appearance of the website's web pages,
redirect (redirection) to other sites,
distribution of advertising on the website pages,
and other harm that disrupts normal operating procedures.
Another reason for hacking may be a simple user password for logging into the site management system. Having gained access, the attacker subjects the site to any changes, even if the user only had access to edit the text content of the pages.
How to know if a website has a virus
The first ones who can tell you about the presence of a virus on the site are the browser, WebMaster, desktop antivirus. To make sure about the presence or absence of a virus, you need to check the site using the Dr. WEB virus removal utility. This utility is familiar with all known computer and web viruses. Finds and displays malicious code. Determines whether there are links to fraudulent sites. You can download the Dr. Web antivirus from the official resource.
How to recognize malicious code/file
Keep in mind that a website consists not only of lines of code, but also of folders with files. Commercial websites and corporate portals are of more interest to attackers than private computers. Company websites store customer databases, legal documents and other secret information that can be sold profitably.
For example, the executable file with the .exe extension may be subject to changes. In this case, the virus is hidden in it and the search for the source of harm becomes more complicated. A desktop antivirus may not see changes in the site files, because a computer virus differs from a virtual one.
How to check a website for viruses? For example, official hosting providers already have an antivirus installed in the control panel. With its help, you can check the website data for malicious files. Or contact an IT company that is engaged in website development, they definitely know how to check a resource for viruses.
What to do if viruses are found on the site
Restore your site backup. On average, technical support specialists back up your site once a month. You are lucky if your site backup was made long before the malicious code appeared. This will eliminate the need to manually treat the site.
Software update, CRM. CRM developers are constantly working to eliminate possible vulnerabilities in the system, fix them and release updates. Install updates from the official website of your CRM to increase the level of protection.
Remove pirated plugins (software module for expanding the capabilities of the system). We recommend installing extensions from official sites. However, not everyone follows this rule and installs free analogs from unknown developers. Most likely, such plugins already contain hidden viruses. Remove plugins, check the system for viruses and install the original software.
Change admin passwords. To access the site, intruders can hack your mail or plant a virus on your computer. Generate complex passwords with letters, numbers and special characters. But if you notice suspicious changes or pop-ups, it is recommended to check your computer for viruses, change passwords for mail accounts, the site control panel and the server.
Set access rights to site files. By setting up rights, you can limit / configure the list of employees who can view, execute and change the code.
Remove malicious code manually. Antivirus showed infected sections of code. If you have skills in working with the server console, then proceed to remove malicious code / file manually. You need to look for the following:
We delete files like wzxp.php, which by their name are clearly not included in the regular CMS files;
Check your .htaccess files to make sure they don't contain any foreign code or redirects to other sites;
Remove the base64 code. It may look like this: "DFJKsdkfjghJhHvKkOmHtgdfRcybJmLpIhVyfTCrfdxfCrtDFcHGhbBjhIJkMOkoI";
Check if eval() or preg_replace() function is used with key in first argument.
How to protect your website from viruses
We share with you a checklist tested by personal experience:
Set up the creation and storage of site backups.
Apply CMS updates and security patches that automatically find and fix site vulnerabilities.
Use only original plugins to extend browser functionality.
Change administrator passwords regularly.
Set access rights to site files or restrict access by allowing only those using their IP address to change the site content.
Check your computer and website regularly for viruses.
You can use these tips yourself. Or trust the security of your services to professional admins.