Website Malware – Joomla SEP Attack – Pharma Injection

This was a fun, yet painful case. In the past we have written a few different posts targeting search engine poisoning attacks (SEP) that like to use Pharmaceutical keywords and their associated links to poison your search engine results.

Today we had an interesting scenario where Google had not yet blacklisted the client, but our free scanner, SiteCheck, was in fact picking up the injection. From what we could see it was being triggered by a referrer but it wasn’t the typical referrers you’d expect, it’s condition was if it came from itself.

If you’re wondering why that is, allow me to explain. That meant that the payload would not show up the first time you visit the page, only when you visit the same page and the referrer was set to itself. This actually a very good evasive technique, it would make detection that much harder by most conventional scanners. In short, if the user clicks on the paeg once, it wouldn’t appear. This makes it very hard to detect and replicate unless you start testing every option. In this case, it wasn’t until you clicked on the option two consecutive times that the injections would appear.

You could try any other variation and it’d never work, only if you clicked on it two consecutive times. How annoying is that !!! This probably explains why Google and many others never picked it up.

In either event, this was a Joomla site and so the question was, where the heck is this thing.

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Website Malware – SPAM Injections – HideMe – KickeMe

Every now and then you have to give thanks that attackers have a sense of humor.

For the past few weeks, maybe months, who keeps track of time anyway, we have been seeing this injection and it makes us giggle like school girls every time.

If you look a little harder you’ll usually find it’s accompanied by this JavaScript injection:



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Website Malware – SEP Attack – SPAM Link Farm

How appropriate that less than a few hours from my last post talking about Search Engine Poisoning (SEP) attacks I come across a case that aims to land the sites visitors on a spam link farm.

This is not an earth shattering post; it’s just a fun little write-up showing you some of the things we do for fun.

Synopsis

Client was complaining that their site wasn’t rendering on the browser.

Note: When a site doesn’t render on the browser performing remediation via the URI can be exceptionally difficult. When in doubt turn to your friend CURL to see what’s going on. You can also enable NoScript on your browser and it’ll show you what JavaScript is trying to run.

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Joomla Pharma Hack – Web Malware Removal

In my last SEO poisoning post I wrote about some really nasty conditional malware. In this one, we’re going to revert our attention to the more common variation of the attack, and look at the Joomla CMS.

Joomla Pharma Hack

This variation will be the Pharma hack. As of late, it seems to be going on a rampage on a number of CMS applications and many of its characteristics are similar. The objective appears to be clear though, find its way into Google’s search engine result pages (SERP).

While we can only speculate, the idea is simple – The SERPs are a cached product and as long as they keep the injections benign of malware they increase their odds of bypassing detection until someone spots it and reports.

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Is WordPress.com SPAM Campaign Due to Compromise?

*****Updated – 20121019*****

Both Matt Mullenweg and Barry Abrahamson, System Wrangler with Automattic, have confirmed that there was not an environmental compromise and everything was isolated to individual user accounts.

Per their incident handling process they identified a brute force like attack which made use of a list of compromised email / password combinations derived from a third-party application[s].

People often use the same username and password on different sites, even though we all know we shouldn’t. If a password on a smaller site is compromised bad guys try it against the big ones like Twitter, Facebook, and WordPress.com. If anything bad happens to a WP.com user we get in touch with them as soon as possible to assist them. – Automatic.com


At this point it’s unclear of the severity, as WordPress.com has not released anything public, but I would say the odds are not in their favor.

The Hacker News (THN) put out an article this morning titled: 15000 WordPress Blogs Hacked For making Money From Survey.

WordPress.com Spam

Naturally my first reaction was, meh, it’s likely a fluke of some kind, but as I read it I became more suspicious. It all started with this email:

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Vote SPAM For President: New Election Tactics or Same Old Tricks?

The United States presidential campaign is going full force, and it’s been a doozy. We don’t typically get involved with political situations, short of cleaning some of the crazy defacements we see, this is an exception.

Vote Spam
This election campaign has brought its typical bashing via commercials, the usual rhetoric we see in interviews, and even those cool vote for (plug in your favorite candidate) stickers. My personal favorite was the vice presidential debate which left me feeling like I was on the grade school playground making faces and sticking my tongue out at the resident bully.

Times have adapted a bit, and the tactics have changed along with the advancements in communications, and social interaction. Twitter discussions boasting crazy statistics, Facebook posts about how awesome each candidate is, all of these have even spawned interesting debate and discussion in my own social groups.

Apparently, the crazy and debatably bad tactics stem beyond the historical mediums into our lovely world of geek. I guess it was only a matter of time.

We have drummed up a couple of theories on how this happened, ultimately it’s up to you to decide. More on that at the end.


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SiteCheck – Got Blackhat SEO Spam Warning?

As of late it seems like we’re talking about a lot of SPAM related cases, this post will be no different.

Blackhat SEO

Before you start, let me preface this by saying that clearing a Blackhat SEO Spam injection is probably the biggest PITA (Google It) infection there is. They constantly evolve, making them difficult to detect and they employ both new and old techniques that, even after years, still prove to be annoying. This post will demonstrate one such case.

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Pharma Hack Backdoor Analyzed – PHP5.PHP

Some of you might remember my last Pharma hack post, Intelligent (Pharma) SPAM Decoded, today I will spend some time looking a different variant of the same infection type but focus on a payload that is not encoded or embedded within an existing file, instead it resides in its own file – PHP5.php.

“Hmm, maybe it’s a good / system file, it does have PHP in it, I won’t bother looking at it…”

If you have ever come across this file and find yourself thinking this, we highly encourage you not to and take a minute to see if any of its components resemble what we’re about to share.

Dissecting the Payload


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Fake jQuery Website Serving Redirection Malware

This just in, hot off the press, careful with the jQuery libraries you’re using on your websites.

We received word from @chris_olbekson via Twitter about some hacks being reported on the WordPress forums:

chris_olbekson

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Google Safe Browsing Program 5 Years Old – Been Blacklisted Lately?

Today Google released a nice post: Safe Browsing – Protecting Web Users for 5 Years and Counting. In it they provide a good summary of what they have been up to the past 5 years with their Safe Browsing program.

Here are some interesting data points:

  • 600 million users are protected
  • 9,500 new malicious websites are found every day
  • 12 – 14 million Google Search queries show malicious warnings
  • Provide warnings to about 300,000 downloads per day
  • Send thousands of notifications daily to webmasters
  • Sent thousands of notifications daily to Internet Service Providers (ISPs)


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