The list includes known malicious files, like minerd, but also some unknown suspicious files like transfer.sh. When we probed the remote server we found a list of suspicious files: This was the case this week when our sensors recorded the following attack vector that tried to exploit CVE-2017-9805: When we record an RCE attack that tries to download an external resource, we try to probe the remote host to gain further security information. This week we recorded an interesting remote code execution (RCE) attack through our web application sensors. These sensors are deployed in publicly accessible databases and web servers. Imperva deploys a network of sensors to gather security intelligence. In a nutshell, cryptojacking attackers have upped their game and they are getting crazier by the minute! Cryptojacking 2.0/ RedisWannaMine It demonstrates a worm-like behavior combined with advanced exploits to increase the attackers’ infection rate and fatten their wallets. RedisWannaMine is more complex in terms of evasion techniques and capabilities. We dubbed one of these attacks RedisWannaMine.

This week we saw a new generation of cryptojacking attacks aimed at both database servers and application servers.

The attacks contained malicious code that downloaded a cryptominer executable file and ran it with a basic evasion technique or none at all. Having said that, all of the attacks we have seen so far, were somewhat limited in their complexity and capability. At Imperva we have witnessed it firsthand and even concluded that these attacks hold roughly 90% of all remote code execution attacks in web applications.

Recently cryptojacking attacks have been spreading like wildfire.

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