![[ 3G Stormtroopers (Blue Dream) ]](https://perishablepress.com/wp/wp-content/images/2008/blacklist-3g/blacklist-series_01.jpg)
In this series of five articles, I share insights and discoveries concerning website security and protecting against malicious attacks. In this first article of the series, I examine the process of identifying attack trends and using them to immunize against future attacks. Subsequent articles will focus on key blacklist strategies designed to protect your site transparently, effectively, and efficiently. At the conclusion of the series, the five articles will culminate in the release of the next generation 3G Blacklist. Improving […] Continue reading »
![[ Photo: Bob Barker Snarls at Rod Roddy ]](https://perishablepress.com/wp/wp-content/images/2008/blacklisted/2008-04-27.jpg "Go to the clam store and git some contestants, dammit!!")
Welcome to the Perishable Press “Blacklist Candidate” series. In this post, we continue our new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Since the implementation of my 2G Blacklist, I have enjoyed a significant decrease in the overall number and variety of site attacks. In fact, I had to time-travel back to March 1st just to find a candidate worthy of this month’s blacklist spotlight. I felt like Rod Roddy looking over the Price-is-Right audience […] Continue reading »
Not too long ago, a reader going by the name of bjarbj78 asked about how to block proxy servers from accessing her website. Apparently, bjarbj78 had taken the time to compile a proxy blacklist of over 9,000 domains, only to discover afterwards that the formulated htaccess blacklisting strategy didn’t work as expected. Here is the ineffective htaccess directive that was used: Deny from proxydomain.com proxydomain2.com Blacklisting proxy servers by blocking individual domains seems like a futile exercise. Although there are […] Continue reading »
![[ Photo: Bob Barker Pointing at You ]](https://perishablepress.com/wp/wp-content/images/2008/blacklisted/2008-03-09.jpg "Come on down! You're the next contestant on the 'Blacklist is Right'!")
Welcome to the Perishable Press “Blacklist Candidate” series. In this post, we continue our new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Imagine, if you will, an overly caffeinated Bob Barker, hunched over his favorite laptop, feverishly scanning his server access files. Like some underpaid factory worker pruning defective bobble heads from a Taiwanese assembly line, Bob rapidly identifies and isolates suspicious log entries with laser focus. Upon further investigation, affirmed spammers, scrapers and crackers […] Continue reading »
![[ 2G Blacklist ]](https://perishablepress.com/wp/wp-content/images/2008/misc-chunks/2g-blacklist.jpg)
Since posting the Ultimate htaccess Blacklist and then the Ultimate htaccess Blacklist 2, I find myself dealing with a new breed of malicious attacks. It is no longer useful to simply block nefarious user agents because they are frequently faked. Likewise, blocking individual IP addresses is generally a waste of time because the attacks are coming from a decentralized network of zombie machines. Watching my error and access logs very closely, I have observed the following trends in current attacks: Continue reading »
Over the course of each year, I blacklist a considerable number of individual IP addresses. Every day, Perishable Press is hit with countless numbers of spammers, scrapers, crackers and all sorts of other hapless turds. Weekly examinations of my site’s error logs enable me to filter through the chaff and cherry-pick only the most heinous, nefarious attackers for blacklisting. Minor offenses are generally dismissed, but the evil bastards that insist on wasting resources running redundant automated scripts are immediately investigated […] Continue reading »
![[ Photo: Bob Barker points a finger ]](https://perishablepress.com/wp/wp-content/images/2008/blacklisted/2008-02-10.jpg "Come on down! You're the next cracker whore to get blacklisted!")
Welcome to the Perishable Press “Blacklist Candidate” series. In this post, we continue our new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Like many bloggers, I like to spend a little quality time each week examining my site’s error logs. The data contained in Apache, 404, and even PHP error logs is always enlightening. In addition to suspicious behavior, spam nonsense, and cracker mischief, this site frequently endures automated and even manual attacks targeting various […] Continue reading »
Approximately 30 days ago, I completely uninstalled the Bad Behavior plugin from Perishable Press. As you may recall, many Bad Behavior users were unexpectedly locked out of their own sites and forced to either uninstall or upgrade in order to fix the problem. Of course, in my perpetual battle to optimize and streamline everything, I decided to drop Bad Behavior from the otherwise obligatory WordPress anti-spam trinity. 30 days later.. I am happy to report that Perishable Press has not […] Continue reading »
![[ Photo: Bob Barker Pointing ]](https://perishablepress.com/wp/wp-content/images/2008/blacklisted/2008-01-02.jpg "Come on down! You're the next hapless turd to get blocked!")
Welcome to the Perishable Press “Blacklist Candidate” series! In this first post, we begin a new tradition of exposing, humiliating and banishing spammers, crackers and other worthless scumbags.. Every Wednesday, I take a little time to investigate my 404 error logs. In addition to spam, crack attacks, and other deliberate mischief, the 404 logs for Perishable Press contain errors due to missing resources, mistyped URLs, and the occasional bizarre or even suspicious behavior of the search-engine robots. Whenever possible, I […] Continue reading »
Yup, ‘ol Slurp is at it again, flagrantly disobeying specific robots.txt rules forbidding access to my bad-bot trap, lovingly dubbed the “blackhole.” As many readers know, this is not the first time Yahoo has been caught behaving badly. This time, Yahoo was caught trespassing five different times via three different IPs over the course of four different days. Here is the data recorded in my site’s blackhole log (I know, that sounds terrible): Continue reading »
..And we’re back. After an insane week spent shopping for a new host, dealing with some Bad Behavior, and transferring Perishable Press to its new home on a virtual private server (VPS), everything is slowly falling back into place. Along the way, there have been some interesting challenges and many lessons learned. Here are a few of the highlights.. Continue reading »
Okay, I realize that the title sounds a bit odd, but nowhere near as odd as my recent discovery of Slurp ignoring explicit robots.txt rules and digging around in my highly specialized bot trap, which I have lovingly dubbed “the blackhole”. What is up with that, Yahoo!? — does your Slurp spider obey robots.txt directives or not? I have never seen Google crawling around that side of town, neither has MSN nor even Ask ventured into the forbidden realms. Has […] Continue reading »
“Oh no, not again!” It looks like another one of my non-existent bank accounts has been blocked at Bank of America. But that’s cool, because I like, totally graduated from third grade. Knowing best for all grammar and words in email. Let’s examine yet another idiotic phishing attempt, shall we? First, let’s have a look at the full-meal deal (sans bank logos, links, and other forged minutia): Continue reading »
![[ Image: Lunar Eclipse ]](https://perishablepress.com/wp/wp-content/images/2007/misc-chunks/blacklist2-eclipse.jpg)
In our original htaccess blacklist article, we provide an extensive list of bad user agents. This so-called “Ultimate htaccess Blacklist” works great at blocking many different online villains: spammers, scammers, scrapers, scrappers, rippers, leechers — you name it. Yet, despite its usefulness, there is always room for improvement. Continue reading »
Keeping track of your access and error logs is a critical component of any serious security strategy. Many times, you will see a recorded entry that looks legitimate, such that it may easily be dismissed as genuine Google fare, only to discover upon closer investigation a fraudulent agent. There are many such cloaked or disguised agents crawling around these days, mimicking various search engines to hide beneath the radar. So it’s always a good idea to implement a procedure for […] Continue reading »
In the hellish battle against spam, many WordPress users have adopted a highly effective trinity of anti-spam plugins: Akismet Bad Behavior Spam Karma This effective triage of free WordPress plugins has served many a WP-blogger well, eliminating virtually 99% of all automated comment-related spam. When spam first became a problem for me, I installed this triple-threat arsenal of anti-spam plugins and immediately enjoyed the results. Although Spam Karma seemed a little invasive and resource-intensive, too much protection seemed far better […] Continue reading »
