A Large Chain of Pharmacy Exploitation Affecting Dozens of University Websites Through Open-Source Script

anti spam






TOKYO (MacHouse) – We’ve been covering the story of pharmacy exploitation at the website of St. Louis University Medical School for the past few days. The same spam terrorist (same name, same IP address) circulated another spam comment about 4 hours ago. (See Screenshot 01.), which has led us to find another location of pharmacy exploitation at the website of Seabury-Western Theological Seminary (See Screenshot 02). Are these exploitation cases related? They actually are. The common factor is moodle. If you see the top of Screenshot 02, there are two folders, ‘moodle’ and ‘user.’ And we have seen this combination of folders at the website of St. Louis University Medical School. I clicked on the tab that said Forum posts, another and another. Then I found a key phrase Online Moodle. (See Screenshot 03.) Eventually, we found a large chain of exploited websites.


Moodle Open Source Course Management System exploitation security
Screenshot 01
  Moodle Open Source Course Management System exploitation security
Screenshot 02
  Moodle Open Source Course Management System exploitation security
Screenshot 03 – Source: medschool.slu.edu



So what is Moodle? According to moodle.org, it’s open-source course management system software that is distributed for free under the GNU Public License. (See Screenshot 04.) It sounds like a script package that colleges and universities can use for online education. In fact, there are many colleges and universities using this software. And sadly… That’s why many school websites are exploited in the same manner.

We don’t know how the spam terrorist group used this software to exploit the websites of St. Louis University Medical School and Seabury-Western Theological Seminary. We don’t know how they got a list of websites using this course management system software. What we know is that there are other dozen websites of academic institutions out there that have been exploited in the same manner. We also know that it’s easy to get a list of the websites installing this software though it may not be the same list that the spam terrorist group has. We simply asked Google what he thinks about /moodle/user/, and he passed us a list of 690,000 matches. (See Screenshot 05-6.) A short list of academic institutions using this software include





  • California Institute of Technology, Computer Science
  • Concord University, Department of Mathematics and Computer Science
  • University of Washington
  • University of Illinois at Urbana-Champaign, Curriculum, Technology & Education Reform (CTER)
  • Yale School of Medicine
  • Universidad de San Buenaventura, Colombia
  • Illinois College
  • Marquette University, Mathematics, Statistics and Computer Science
  • St. Thomas University




  • Moodle Open Source Course Management System exploitation security
    Screenshot 04 – Source: moodle.org
      Moodle Open Source Course Management System exploitation security
    Screenshot 05 – Source: Google
      Moodle Open Source Course Management System exploitation security
    Screenshot 06 – Source: Google



    Of course, there are more organizations and schools using this software. Some of the websites listed above are in fact exploited for pharmacy spam. We, therefore, strongly advise all users of Moodle to check urgently if there are traces of pharmacy exploitation at their own websites. One of the exploited websites we found contains an offensive message from the spam terrorist group. When I went to the exploited site of St. Thomas University (Miami Gardens. Florida), I saw a message that said

    Below is a (modified) version of the ad posted on a University’s educational web space by a spammer. If you, like me, can’t stand these vermin, then email the administrators of their website at abuse@masterhost.ru and complain about the Website listed below.

    So who is sponsoring this spam operation in this large scale? It’s a typical scenario of online pharmacy store websites behind affiliate spammers. Some of the sponsors include tabletsa.net, canadian-pharmacy-shop.com, pillbestellen.de, kaufmed.de and so forth.


    Moodle Open Source Course Management System exploitation security
    Screenshot 07 – Source: stu.edu
      Moodle Open Source Course Management System exploitation security
    Screenshot 08 – Source: tabletsa.net
      Moodle Open Source Course Management System exploitation security
    Screenshot 09 – Source: canadian-pharmacy-shop.com


    Moodle Open Source Course Management System exploitation security
    Screenshot 10 – Source: caltech.edu
      Moodle Open Source Course Management System exploitation security
    Screenshot 11 – Source: deoss.org
      Moodle Open Source Course Management System exploitation security
    Screenshot 12 – Source: elvag.edu.ee


    Moodle Open Source Course Management System exploitation security
    Screenshot 13 – Source: mscs.mu.edu
      Moodle Open Source Course Management System exploitation security
    Screenshot 14 – Source: gonzo.edu.au
      Moodle Open Source Course Management System exploitation security
    Screenshot 15 – Source: usbctg.edu.co



    Why are there so many websites of American academic institutions falling victims to pharmacy spam? Typically, they rarely patrol their websites. Arrogance is also a factor. We have attempted to contact dozens of academic institutions to notify them of affiliate spam exploitation at their websites. Only a few of them including Ohio State College of Education have written back band thanked us. Some of them are believed to ignore our kind notifications.






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