The Hidden Backdoors to the City of Cron
Fioravante Souza An attacker’s key to creating a profitable malware campaign is persistence. Malicious code that is easily detected and removed will not generate enough value for…
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Website Malware Infections
839 posts
How We Decoded Some Nasty Multi-Level Encoded Malware
Ante Kresic From time to time, we come up with interesting bits of malware that are just calling us to decode and learn more about them. This…
Another Fake WordPress Plugin – And Yet Another SPAM Infection!
Peter Gramantik We clean hundreds and thousands of infected websites, a lot of the cleanups can be considered to be somewhat “routine”. If you follow our blog,…
Understanding Google’s Blacklist – Cleaning Your Hacked Website and Removing From Blacklist
Today we found an interesting case where Google was blacklisting a client’s site but not sharing the reason why. The fact they were sharing very…
Blackhat SEO and ASP Sites
It’s all too easy to scream and holler at PHP based websites and the various malware variants associate with the technology, but perhaps we’re a…
Joomla – Fancy SPAM Injections
Malware writers can be really ingenious when it comes to obfuscating their code. And let’s face it, in today’s anti-malware push, they have to; the…
Backdoor Evasion Using Encrypted Content
Daniel Cid A few weeks ago on the Sucuri Research Labs we mentioned a new type of malware injection that does not use base64_decode, and instead conceals…
Malware iFrame Campaign from Sytes(.)net
For the last few weeks we have been tracking a large malframe (malicious iframe) campaign that has been injecting iframes from random domains from sytes(.)net…
WordPress Database Table and wp_head Injections
There are multiple places where a malware injection can be hidden on a web site. On WordPress, for example, it can be hidden inside the…
Security Archive – Case Study: phpbb.com Compromised
Security Archive: It is important to remember past security incidents to make sure we don’t commit the same mistakes over and over again. The idea…
Joomla Hacks – Part I – Phishing
Tony Perez Joomla is a very popular open source CMS, dominating approximately 10% of the website market. While great for them, horrible for many others, as being…