Mika Ayenson
50 lines
1.4 KiB
Python
50 lines
1.4 KiB
Python
# Copyright Elasticsearch B.V. and/or licensed to Elasticsearch B.V. under one
|
|
# or more contributor license agreements. Licensed under the Elastic License
|
|
# 2.0; you may not use this file except in compliance with the Elastic License
|
|
# 2.0.
|
|
|
|
from . import common
|
|
from . import RtaMetadata
|
|
|
|
|
|
metadata = RtaMetadata(
|
|
uuid="4406f514-0ffa-465b-9cef-2eeeb32f1096",
|
|
platforms=["macos"],
|
|
endpoint=[
|
|
{
|
|
"rule_id": "5dce3865-838f-4773-9781-87226af1fc12",
|
|
"rule_name": "Payload Decoded and Decrypted via Built-In Utilities",
|
|
}
|
|
],
|
|
siem=[],
|
|
techniques=["T1027", "T1140", "T1059", "T1059.004", "T1204", "T1204.002"],
|
|
)
|
|
|
|
|
|
@common.requires_os(metadata.platforms)
|
|
def main():
|
|
|
|
# create masquerades
|
|
masquerade = "/tmp/DiskImageMounter"
|
|
masquerade2 = "/tmp/bash"
|
|
masquerade3 = "/tmp/openssl"
|
|
common.create_macos_masquerade(masquerade)
|
|
common.create_macos_masquerade(masquerade2)
|
|
common.create_macos_masquerade(masquerade3)
|
|
|
|
# Execute command
|
|
common.log("Launching fake bash with base64 decode commands")
|
|
common.execute([masquerade], timeout=10, kill=True)
|
|
|
|
command = f"{masquerade3} enc -base64 -d"
|
|
common.execute([masquerade2, "childprocess", command, "/Volumes/test"], timeout=10, kill=True)
|
|
|
|
# cleanup
|
|
common.remove_file(masquerade)
|
|
common.remove_file(masquerade2)
|
|
common.remove_file(masquerade3)
|
|
|
|
|
|
if __name__ == "__main__":
|
|
exit(main())
|