57 lines
1.8 KiB
TOML
57 lines
1.8 KiB
TOML
|
[metadata]
|
||
|
|
creation_date = "2023/08/30"
|
||
|
|
integration = ["endpoint"]
|
||
|
|
maturity = "production"
|
||
|
|
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
|
||
|
|
min_stack_version = "8.3.0"
|
||
|
|
updated_date = "2023/08/30"
|
||
|
|
bypass_bbr_timing = true
|
||
|
|
|
||
|
|
[rule]
|
||
|
|
author = ["Elastic"]
|
||
|
|
building_block_type = "default"
|
||
|
|
description = """
|
||
|
|
This rule monitors for potential memory dumping 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.
|
||
|
|
"""
|
||
|
|
from = "now-9m"
|
||
|
|
index = ["logs-endpoint.events.*"]
|
||
|
|
language = "eql"
|
||
|
|
license = "Elastic License v2"
|
||
|
|
name = "Linux Secret Dumping via GDB"
|
||
|
|
references = [
|
||
|
|
"https://github.com/controlplaneio/truffleproc",
|
||
|
|
"https://github.com/hajzer/bash-memory-dump"
|
||
|
|
]
|
||
|
|
risk_score = 21
|
||
|
|
rule_id = "66c058f3-99f4-4d18-952b-43348f2577a0"
|
||
|
|
severity = "low"
|
||
|
|
tags = ["Domain: Endpoint", "OS: Linux", "Use Case: Threat Detection", "Tactic: Credential Access", "Data Source: Elastic Defend", "Rule Type: BBR"]
|
||
|
|
timestamp_override = "event.ingested"
|
||
|
|
type = "eql"
|
||
|
|
query = '''
|
||
|
|
process where host.os.type == "linux" and event.action == "exec" and event.type == "start" and
|
||
|
|
process.name == "gdb" and process.args in ("--pid", "-p") and
|
||
|
|
/* Covered by d4ff2f53-c802-4d2e-9fb9-9ecc08356c3f */
|
||
|
|
process.args != "1"
|
||
|
|
'''
|
||
|
|
|
||
|
|
[[rule.threat]]
|
||
|
|
framework = "MITRE ATT&CK"
|
||
|
|
|
||
|
|
[[rule.threat.technique]]
|
||
|
|
id = "T1003"
|
||
|
|
name = "OS Credential Dumping"
|
||
|
|
reference = "https://attack.mitre.org/techniques/T1003/"
|
||
|
|
|
||
|
|
[[rule.threat.technique.subtechnique]]
|
||
|
|
id = "T1003.007"
|
||
|
|
name = "Proc Filesystem"
|
||
|
|
reference = "https://attack.mitre.org/techniques/T1003/007/"
|
||
|
|
|
||
|
|
[rule.threat.tactic]
|
||
|
|
id = "TA0006"
|
||
|
|
name = "Credential Access"
|
||
|
|
reference = "https://attack.mitre.org/tactics/TA0006/"
|