Siloscape is a new strain of malware that targets Windows Server containers to execute code on the underlying node and spread in the Kubernetes cluster.

Researchers from Palo Alto Networks have spotted a piece of malware that targets Windows Server containers to execute code on the underlying node and then drop a backdoor into Kubernetes clusters.

Siloscape is a heavily obfuscated malware that was designed to open a backdoor into poorly configured Kubernetes clusters in order to run malicious containers and carry out malicious activities.

Compromising an entire cluster could allow an attacker to steal sensitive information, including credentials, confidential files, or even entire databases hosted in the cluster. 

‚ÄúSiloscape uses the Tor proxy and an¬†.onion¬†domain to anonymously connect to its command and control (C2) server. I managed to gain access to this server. We identified 23 active Siloscape victims and discovered that the server was being used to host 313 users in total, implying that Siloscape was a small part of a broader campaign. I also discovered that this campaign has been taking place for more than a year.‚ÄĚ reads the¬†analysis¬†published by Palo Alto Network researcher Daniel Prizmant.

Siloscape

Siloscape, first known malware that drops a backdoor into Kubernetes clusters