Shell Logins as a Magento Reinfection Vector

Shell Logins as a Magento Reinfection Vector

Recently, we have come across a number of websites that were facing reinfection of a credit card information stealer malware within the following files:

  • app/Mage.php;
  • lib/Varien/Autoload.php;
  • index.php;
  • app/code/core/Mage/Core/functions.php;

These are common files for attackers to target as they operate throughout Magento sites, but these instances were special as they had a very peculiar reinfection rate.

Malicious Scripts Loaded Through .bashrc

Upon closer inspection, we came across this snippet in the site owner’s .bashrc file.

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Story added 31. May 2018, content source with full text you can find at link above.