Linux init (PID 1) Secret Dump via GDB

[rule]
description = """
This rule monitors for the potential memory dump of the init process (PID 1) through gdb. Attackers may leverage memory
dumping techniques to attempt secret extraction from privileged processes. Tools that display this behavior include
"truffleproc" and "bash-memory-dump". This behavior should not happen by default, and should be investigated thoroughly.
"""
id = "ba70be59-bf50-48a9-8b36-0f0808a50fb8"
license = "Elastic License v2"
name = "Linux init (PID 1) Secret Dump via GDB"
os_list = ["linux"]
reference = ["https://github.com/controlplaneio/truffleproc", "https://github.com/hajzer/bash-memory-dump"]
version = "1.0.6"

query = '''
process where event.type == "start" and event.action == "exec" and process.name == "gdb" and 
process.args in ("--pid", "-p") and process.args == "1"
'''

min_endpoint_version = "7.15.0"
optional_actions = []
[[actions]]
action = "kill_process"
field = "process.entity_id"
state = 0

[[threat]]
framework = "MITRE ATT&CK"
[[threat.technique]]
id = "T1003"
name = "OS Credential Dumping"
reference = "https://attack.mitre.org/techniques/T1003/"
[[threat.technique.subtechnique]]
id = "T1003.007"
name = "Proc Filesystem"
reference = "https://attack.mitre.org/techniques/T1003/007/"



[threat.tactic]
id = "TA0006"
name = "Credential Access"
reference = "https://attack.mitre.org/tactics/TA0006/"

[internal]
min_endpoint_version = "7.15.0"