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Unmask Parasites - Check your web pages for hidden links, iframes, malicious scripts, unauthorized redirects and other signs of security problems.
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Versatile .CC Attacks

02 Mar 11   Filed in Website exploits with 28 Comments

A few days ago I tweeted that “this year the most popular TLD for malicious sites is .CC“. I conducted some research on the most prevalent attacks that use the .CC TLD and now want to elaborate on what is going on.
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Another Update on the osCommerce .htaccess Hack

18 Jan 11   Filed in Website exploits with 2 Comments

The osCommerce .htaccess hack that I wrote about here and here is still quite prevalent.

Some webmasters have problems locating the rogue .htaccess files so I decided to address this issue again.
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Injected Script Loads Host.exe Using Hidden Iframes and Java Applets

Today, I can see many blacklisted sites where Google report one of the following three domains as a source of the problem:

  • aubreyserr .com
  • medien-verlag .de
  • yennicq .be

E.g.

Malicious software is hosted on 1 domain(s), including medien-verlag.de/.

The attack is quite interesting so I decided to share results of my initial investigation here.
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Hackers Turn Legitimate Websites into Underground Software Stores

10 Dec 10   Filed in Website exploits with 2 Comments

This is the time of the year when online sellers do their best to attract herds of holiday shoppers. Software pirates are no different. They offer huge discounts (up to 95%) for popular and expensive software products and provide user-friendly online stores. They even made their sites one step closer to you!
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Doorways on Non-default Ports — New Trend in Black Hat SEO?

03 Dec 10   Filed in Website exploits with 12 Comments

A year ago I blogged about how hackers managed to hijack hundreds of high-profile websites to make them promote online stores that sold pirated software at about 5-10% of a real cost. They used quite a standard scheme that involved cloaking (making spammy links visible only to search engine crawlers) and conditional redirects (visitors from search engines who clicked on specifically-crafted links on compromised sites got redirected to online stores of software pirates)

Despite of all my warnings, most of those site are still hacked and help sell pirated software and steal credit card numbers. This negligence of site/server administrators encouraged cyber criminals to step even further in abusing reputation and resources of compromised servers. This post will be about one of such steps.
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Htaccess Redirect to Example.ru/dir/index.php

14 Oct 10   Filed in Website exploits with 8 Comments

Having read the Sucuri’s article about the kirm-sky .ru attack, I decided to complement it with my own information.

I started to track this website infection back in April. It has been active all these months.
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Two Malware Trends Combined in One Attack

06 Oct 10   Filed in Website exploits with 8 Comments

Two of the major trends in malware attacks described on this blog this summer were the use of hijacked DNS records of legitimate domains and continuous attacks against sites on MediaTemple and RackSpace. In the end of this September, I noticed a new attack that combined these two trends.

At higher level, this attack is no different from many preceding variations that hit MediaTemple. It prepends malicious code to the first line of some existing .js files or injects it inside the <ads>…</ads> tags at the bottom of HTML code of legitimate web pages.

However, soon you notice new techniques.
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Geezter, Qawfer and Other Malicious Iframes From 121 .156 .57 .184

This is a short post about one of the ongoing attacks. It injects the following script [usually] at the very bottom of the HTML
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EMI Server Hacked

25 Sep 10   Filed in Website exploits with 5 Comments

EMI Music is one of the world’s leading music companies with many successful record labels and signed popular artists that include The Beatles, Depeche Mode, Gorillaz, Iron Maiden, Kylie Minogue, Pink Floyd, Queen, Snoop Dogg and many more. They have their own web hosting subsidiary EMIHosting.com that provides web space for EMI’s websites and many official websites of EMI artists.

In the beginning of this September EMI Hositng.com was attacked by hackers. As a result more than a hundred websites on a server with IP address of 195 .225 .83 .57 have been infected with a malicious iframe. Google’s diagnostics page for AS34401 (EMIMUSICGROUP) says:
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“Inlovebot” and “Crazymasya” Iframes on RackSpace

19 Sep 10   Filed in Website exploits with 5 Comments

A few days ago I noticed a new mass infection of sites on RackSpace. It mostly affects WordPress blogs and sites hosted under the same account with WordPress blogs.

Hackers create malicious .js files in some subdirectory of the compromised sites and inject links to those .js files into website pages.
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