A large majority of the malware we find on compromised websites are backdoors that allow an attacker to maintain unauthorized access to the site and execute whatever commands they want. Another common scenario includes malware which is directly injected into a website’s files and used to redirect traffic, steal credit cards and other sensitive information, […]
Tag Archives: Conditional Malware
Fake WordPress Plugin SiteSpeed Serves Malicious Ads & Backdoors
Fake WordPress plugins appear to be trending as an effective way of establishing a foothold on compromised websites. During a recent investigation, we discovered a fake component which was masquerading as a legitimate plugin. Named SiteSpeed, it contained a lot of interesting malicious capabilities. Unwanted Advertisements The malicious plugin can be used by the attacker […]
Phishing Campaign Targets Poste Italiane & SMS OTP Verification
When creating phishing lures, attackers may cite recent major regulatory changes within the context of their social engineering scheme to confuse or further entice victims into clicking a link or performing some action. For example, in September 2019 the EU directive PSD2 went into effect (with some parts delayed until the end of 2020). This […]
Obfuscated WordPress Malware Dropper
It goes without saying that evasive maneuvering is at the top of a hacker’s priority list. Most often, they try to evade detection by obfuscating their malicious code to make it unreadable to the naked eye. In our recent post we demonstrated how the PHP function file_put_contents is used to inject malicious data into a […]
Assemble the Cookies
When we investigate compromised websites, it’s not unusual to find malicious files that have been obfuscated through forms of encoding or encryption — however, these are not the only methods that attackers use to obfuscate code. Obfuscation via Predefined PHP Variables Here’s an example of obfuscation that doesn’t use encoding or encryption in any way: […]
Abused CloudFlare Workers Service Used to Inject Korean SEO Spam
We were recently contacted by a website owner about some malicious injected spam links that were being indexed by Google’s search engine crawler Googlebot. What was especially frustrating for the website owner was that these spammy links were not being loaded on the website when viewing it from a variety of devices — making it […]
Hacked Website Threat Report – 2019
The threat landscape for website owners is constantly shifting on a regular basis — and it’s becoming increasingly more complex. As attackers continue to develop tools and find new vulnerabilities to massively exploit, our team works diligently around the clock to identify, analyze, and protect website owners from compromise. Education is key to protecting yourself […]
Hacked Website Trend Report – 2018
We are proud to be releasing our latest Hacked Website Trend Report for 2018. This report is based on data collected and analyzed by the GoDaddy Security / Sucuri team, which includes the Incident Response Team (IRT) and the Malware Research Team (MRT). The data presented is based on the analysis of 25,168 cleanup requests […]
Hacked Website Trend Report – 2018
We are proud to be releasing our latest Hacked Website Trend Report for 2018. This report is based on data collected and analyzed by the GoDaddy Security / Sucuri team, which includes the Incident Response Team (IRT) and the Malware Research Team (MRT). The data presented is based on the analysis of 25,168 cleanup requests […]
Fake Browser Updates Push Ransomware and Bank Malware
Recently we came across a malicious campaign injecting scripts that push fake browser updates onto site visitors. This is what a typical fake update request looks like: Users see a message box that says it’s an “Update Center” for your browser type (in my case it’s Firefox, but they also have such messages for Chrome, […]
