Ill requests and malicious scans have been spiking recently, to the point where server performance was really taking a hit. One scan in particular hammered the server with thousands of bad requests in just a few minutes. There are people out there with strong scripts and small minds that are constantly scanning sites for vulnerabilities, and much of what I’ve seen is aimed primarily at WordPress. • Read more »
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5G Blacklist 2012
The 5G Blacklist helps reduce the number of malicious URL requests that hit your website. It’s one of many ways to improve the security of your site and protect against evil exploits, bad requests, and other nefarious garbage. After extensive beta testing, the 5G Blacklist/Firewall is solid and ready to help secure sites hosted on Apache servers. In addition to beta testing for the 5G, this is the 5th major update of my “G”-series blacklists. Here is [...] • Read more »
5G Blacklist for Microsoft IIS
By design the 5G Blacklist works on Apache servers, but thanks to Scott Stawarz, here is a version for Microsoft IIS: • Read more »
Building the 5G Blacklist
Protecting your website is more important than ever. There are a million ways to do it, and this is one of them. In fact, it’s what I use to protect Perishable Press and other key sites. It’s called the 5G Blacklist, and it’s something I’ve been working on for a long time. The idea is simple enough: analyze bad requests and block them using a firewall/blacklist via .htaccess. Now in its 5th generation, the 5G Blacklist has [...] • Read more »
Block Tough Proxies
If you want to block tough proxies like hidemyass.com, my previously posted .htaccess methods won’t work. Those methods will block quite a bit of proxy visits to your site, but won’t work on the stealthier proxies. Fortunately, we can use a bit of PHP to keep them out. • Read more »
5G Firewall Beta
Update 2012/01/25 — Official release version: 5G Blacklist 2012. The beta version provided in this post is now for reference only. Updating the 4G Blacklist, the new 5G Firewall is now open for beta testing. The new code is better than ever, providing wider protection with less code and fewer false positives. I’ve had much success with this new firewall, but more testing is needed to ensure maximum compatibility and minimal issues. • Read more »
What a Malicious Server Scan Looks Like
Like most sites on the Web, Perishable Press is scanned constantly by malicious scripts looking for vulnerabilities and exploit opportunities. There is no end to the type and variety of malicious URL requests. It all depends on the script, the target, and the goal of the attack. Malicious scripts generally seek one of two things: • Read more »