Find sigma rule 
Attack: Automated Exfiltration
Adversaries may exfiltrate data, such as sensitive documents, through the use of automated processing after being gathered during Collection.(Citation: ESET Gamaredon June 2020)
When automated exfiltration is used, other exfiltration techniques likely apply as well to transfer the information out of the network, such as Exfiltration Over C2 Channel and Exfiltration Over Alternative Protocol.
MITRE
Tactic
- exfiltration
technique
- T1020
Test : IcedID Botnet HTTP PUT
OS
- windows
Description:
Creates a text file Tries to upload to a server via HTTP PUT method with ContentType Header Deletes a created file
Executor
powershell
Sigma Rule
-
posh_ps_script_with_upload_capabilities.yml (id: d2e3f2f6-7e09-4bf2-bc5d-90186809e7fb)
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posh_ps_web_request_cmd_and_cmdlets.yml (id: 1139d2e2-84b1-4226-b445-354492eba8ba)
-
net_connection_win_powershell_network_connection.yml (id: 1f21ec3f-810d-4b0e-8045-322202e22b4b)