Magento Stores – Self-Healing Malware Hitting

By | February 20, 2017

A new malware has discovered by security researchers  , It is targeting mostly on Magento stores, with capability of self-healing to restore itself after deletion.

Self-healing malware isn’t new, with the first such threat reportedly spotted nearly three decades ago, as the memory-residing Trojan called Yankee Doodle, which could infect .com and .exe files. Discovered in September 1989, this piece of malware would play the tune “Yankee Doodle” every day at 17:00 if it was in memory.

Process:

It is discovered by Jeroen Boersma, the recently spotted Magento-targeting malware is using a database trigger to restore itself in the event it has been deleted: every time a new order is made, injected SQL code searches the compromised Magento installation and, if it doesn’t find the malware, it re-adds it. The malware leverages SQL stored procedures for this operation.

According to Willem de Groot, who analyzed the threat, the malware’s infection point was a brute force attack on /rss/catalog/notifystock/ where the compromised shop was “otherwise completely patched.”

De Groot notes that the malware’s behavior renders previous cleaning routines useless, because removing the malicious code from the infected records will no longer ensure that the infection is gone. This would only work for regular Javascript-based malware, which normally gets injected in the static header or footer HTML definitions in the database.

he also added that, malware detection should now include database analysis as well, because file scanning is no longer efficient. “This discovery shows we have entered a new phase of malware evolution,”

According to security researchers

This malware ensures that the self-healing trigger is executed every time a new order is made. “The query checks for the existence of the malware in the header, footer, copyright and every CMS block. If absent, it will re-add itself,”

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