Find sigma rule 
Attack: Non-Application Layer Protocol
Adversaries may use an OSI non-application layer protocol for communication between host and C2 server or among infected hosts within a network. The list of possible protocols is extensive.(Citation: Wikipedia OSI) Specific examples include use of network layer protocols, such as the Internet Control Message Protocol (ICMP), transport layer protocols, such as the User Datagram Protocol (UDP), session layer protocols, such as Socket Secure (SOCKS), as well as redirected/tunneled protocols, such as Serial over LAN (SOL).
ICMP communication between hosts is one example.(Citation: Cisco Synful Knock Evolution) Because ICMP is part of the Internet Protocol Suite, it is required to be implemented by all IP-compatible hosts.(Citation: Microsoft ICMP) However, it is not as commonly monitored as other Internet Protocols such as TCP or UDP and may be used by adversaries to hide communications.
MITRE
Tactic
- command-and-control
technique
- T1095
Test : ICMP C2
OS
- windows
Description:
This will attempt to start C2 Session Using ICMP. For information on how to set up the listener refer to the following blog: https://www.blackhillsinfosec.com/how-to-c2-over-icmp/
Executor
powershell
Sigma Rule
-
proc_creation_win_powershell_download_patterns.yml (id: 3b6ab547-8ec2-4991-b9d2-2b06702a48d7)
-
proc_creation_win_susp_web_request_cmd_and_cmdlets.yml (id: 9fc51a3c-81b3-4fa7-b35f-7c02cf10fd2d)
-
posh_pm_susp_download.yml (id: de41232e-12e8-49fa-86bc-c05c7e722df9)
-
posh_pm_susp_invocation_specific.yml (id: 8ff28fdd-e2fa-4dfa-aeda-ef3d61c62090)
-
posh_ps_susp_invocation_specific.yml (id: ae7fbf8e-f3cb-49fd-8db4-5f3bed522c71)
-
posh_ps_web_request_cmd_and_cmdlets.yml (id: 1139d2e2-84b1-4226-b445-354492eba8ba)
-
posh_ps_nishang_malicious_commandlets.yml (id: f772cee9-b7c2-4cb2-8f07-49870adc02e0)
-
posh_ps_susp_download.yml (id: 403c2cc0-7f6b-4925-9423-bfa573bed7eb)
-
posh_ps_icmp_exfiltration.yml (id: 4c4af3cd-2115-479c-8193-6b8bfce9001c)
-
net_connection_win_powershell_network_connection.yml (id: 1f21ec3f-810d-4b0e-8045-322202e22b4b)
-
net_connection_win_susp_file_sharing_domains_susp_folders.yml (id: e0f8ab85-0ac9-423b-a73a-81b3c7b1aa97)