Category Archives: Website Security

How to Detect and Remove Malware from Websites

Hackers are always on the lookout for vulnerable websites into which they could inject malware and use the same to distribute malware or other potentially harmful applications into users’ systems/devices.

There are many kinds of malware that evade detection and stay inactive until the hacker sends a signal to allow a backdoor entry or to unpack and spread some malicious application into the website’s database. Thus, it’s important to detect malware presence on time so as to remove it before the payload is unleashed and damage caused, not only from the website security perspective but to the business and its reputation as well. There are certain signs that indicate the presence of malware on a website. Let’s examine these signs and also discuss how to remove malware from website to ensure website security –

How to detect malware presence on websites

  • Noticeable difference in website performance and traffic- There will be a noticeable difference in website performance, especially relating to the traffic. There will be a noticeable dip in the traffic. If this happens, it should be seen as the indicator of malware presence and needs to be investigated.
  • Apparent changes in the website’s looks- A malware leaves markers on webpages. If you happen to see changes in the text, the presence of images that weren’t uploaded by you or any other such changes in the website’s looks, you should start investigating for malware presence.
  • Webpages crashing or changes in files at the backend- When webpages crash as visitors try to access them or when there are unexpected changes in some files at the website’s backend, you must start looking for malware presence.
  • Unwarranted password changes and notifications- Website administrators, if they find that their websites show password changes or related notifications, should stay cautioned. It could be a malware infection. The hacker, using the malware, could be trying to take over the administrator’s account. Investigations have to be made for malware detection.
  • Notification from the web host, Google delisting- Upon finding irregularities, website administrators would be notified by the website hosting service providers. Similarly, Google would also tend to delist websites where unaddressed malware infection that could harm searchers is detected. Such things call for prompt investigation.

Website Malware Removal

Once you detect malware presence on your website, there are certain things that you need to do to get it removed. Here’s an overview-

  • Download website files- Website hosting providers may provide website administrators with tools that could help perform searches on the website files, look at the files from a command console and detect changes. But if there’s no such web console access, administrators should first download all of the website’s files on to their computer and then go for the searches.
  • Use PHP codes to do searches for malware- Security researchers share online the PHP codes of some common malware strains. Administrators could use these PHP codes to perform searches and look for malware presence.
  • Remove affected files, replace with clean copies- Once the affected files are found from the search done on website files, the tainted files have to be deleted and replaced with clean, untainted copies obtained from the backup. Once replaced, these files should be uploaded and the website would then be clean.

Website malware detection and removal tools also help

There are many website detection and removal tools that make it easy for malware detection and removal to be done. You could use any of these and do website malware detection and website malware removal in an effective manner.

Related Resources:

Weird Signs of Malware Infection

What’s New With Separ Malware Family in 2019

Automated Malware Analysis in the Cloud

Static Malware Analysis Vs Dynamic Malware Analysis

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The Future of Web Filtering in the Era of 5G Networks

Security professionals and network administrators today are concerned with securing fifth-generation (5G) networks from digital dangers. Of the different technologies that they use very effectively for safeguarding 5G networks, DNS filtering is notable to a great extent. Let’s discuss different aspects pertaining to the future of DNS filtering in the light of 5G network security.

On the one hand, DNS filtering provides security to 5G networks from all kinds of threats, including botnets, ransomware, phishing scams etc while on the other hand, it also works towards providing network configuration controls for better security and parental controls.

MSPs (Managed Service Providers), ISPs (Internet Service Providers) and Cloud Access Security Brokers can benefit a lot from DNS filtering, using it along with web content categorization.

The 5G era is also the era of the IoT (Internet of Things). It needs to be pointed out that DNS filtering goes a long way in protecting IoT networks, in particular those that are 5G-based, from all kinds of threats, especially the DDoS (Distributed Denial of Service) attacks that very frequently target such networks and critical IoT applications. There are immense possibilities when it comes to using DNS filtering for IoT security on 5G networks, but there still seems to be a lack of sufficient research in this area. It seems that as regards tackling 5G traffic for IoT security management, most solutions are ill-equipped.

Now, let’s dwell on another important aspect of DNS filtering in the era of 5G networks. If on one hand, DNS filtering works towards securing 5G networks, on the other hand, it’s also a big security headache as it happens to be an area of security vulnerabilities. The number of connected devices and applications seems to be increasing like never before, on a global level. With a large number of devices getting connected to the 5G network, cybersecurity could become more challenging than ever before. Most of these devices are likely to be targeted for DDoS attacks and other cyberattacks. Hence, it’s imperative that security experts as well as service providers put in extra effort to study and understand the requirements of the next-generation 5G network. They are, in fact, trying to form a clear understanding of the cybersecurity-related challenges that would come up in the future as regards 5G networks.

A highly proficient 5G-aware DNS filtering is important when it comes to securing 5G-based IoT traffic and experts are coming up with all kinds of new security frameworks that are needed to accomplish the kind of networking abilities that this situation demands. Security firms and experts are working towards devising systems that have the capability of processing 5G-aware DNS filtering rules and thus ensure maximum security against cyberattacks of all magnitudes and kinds.

Though DNS filtering contributes greatly towards providing security to the critical 5G network infrastructure, the involvement of trusted cybersecurity partners and the employment of all kinds of security technologies is also needed. Since no single cybersecurity product can assure 100% security, it’s always best to go for different techniques and technologies including two-factor authentication, antivirus software, spam filters etc and also have concrete remediation policies in place.

Coming back to DNS filtering, it helps organizations adopt effective, extensive and forward-thinking Web use policies, block access to malicious websites and do what all is needed to protect their networks from all kinds of dangers. DNS filtering, along with other technologies, definitely helps organizations protect themselves against all kinds of known and unknown cybersecurity threats and also against unauthorized access to their 5G networks.
Remember, we live in a world where the number of connected devices and applications is increasing rapidly, to the tune of millions. Thus, there is a huge pressure to ensure that all networks are secure and adaptable. Technologies like DNS filtering provide solutions to ensure the kind of security and adaptability that’s needed in this context, especially for the much advanced 5G networks.

Also, Read:

Australia Doesn’t Want Huawei And Zte For Their 5G Networks

EU’s G5 Technology Roll-out In The Age Of Anti-Huawei Publicity

Huawei a Threat to Australia’s Infrastructure, Says Spy Chief

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Hackers Inject Scripts in WordPress Live Chat Plugin

Site administrators using WP Live Chat Support for WordPress are advised to upgrade the plug-in to the latest version to close persistent cross-site scripting (XSS) vulnerability that is exploited without any authentication.

Installed on more than 60,000 websites, the plug-in is presented as a free alternative to complete customer loyalty and chat solution.

The danger of automatic attacks

Sucuri researchers discovered that versions of the plug-in earlier than 8.0.27 are susceptible to persistent XSS issues that can be exploited remotely by a hacker who does not have an account on the affected site.

The hackers can automate their attacks and cover more victims, without having to authenticate on the target site. So going by the popularity of the plugin if you add it, and with little effort of the plugin, you are in for trouble.

Talking about XSS error, it’s quite serious issues, because it allows the hacker to place malicious code on websites or web applications, and then it compromises visitor accounts or shares them on modified pages.

XSS can be persistent if a malicious code is added to a section stored on the server, for instance, user comments. When a user loads the infected page, the malicious code is scanned by the browser and the attacker’s instructions are executed.

The details from Sucuri elucidates how exploiting this vulnerability could be due to unprotected “admin_init hook” – a common attack vector for WordPress plugins.

The researchers say that the wplc_head_basic function did not use the appropriate authorization controls to update the plug-in’s settings.

“Because the ‘admin_init’ hooks can be called by visiting /wp-admin/admin-post.php or /wp-admin/admin-ajax.php, an unauthenticated attacker can use these endpoints to get the ‘wplc_custom_js ‘update arbitrarily’, “Castros details

The content of the option is included on every page that loads live chat support so that hackers who reach a vulnerable site can insert JavaScript code on multiple pages

Sucuri informed developers of the plug-in on April 30 and a corrected version was released on Wednesday.

Related Resources:

Protect Your WordPress Website from SQL Injection

Yet Another WordPress Hack Exploiting Plugin Vulnerabilities

How to Clean Malware-Infected WordPress Website [Infographic]

WordPress Acting Weird? 10 Signs Your Site May Be Hacked

 

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