Justin Ibarra
55 lines
1.7 KiB
TOML
55 lines
1.7 KiB
TOML
[metadata]
|
|
creation_date = "2021/01/19"
|
|
maturity = "production"
|
|
updated_date = "2021/03/03"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies attempts to modify the WDigest security provider in the registry to force the user's password to be stored in
|
|
clear text in memory. This behavior can be indicative of an adversary attempting to weaken the security configuration of
|
|
an endpoint. Once the UseLogonCredential value is modified, the adversary may attempt to dump clear text passwords from
|
|
memory.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["winlogbeat-*", "logs-endpoint.events.*", "logs-windows.*"]
|
|
language = "eql"
|
|
license = "Elastic License v2"
|
|
name = "Modification of WDigest Security Provider"
|
|
references = [
|
|
"https://www.csoonline.com/article/3438824/how-to-detect-and-halt-credential-theft-via-windows-wdigest.html",
|
|
"https://www.praetorian.com/blog/mitigating-mimikatz-wdigest-cleartext-credential-theft?edition=2019",
|
|
]
|
|
risk_score = 73
|
|
rule_id = "d703a5af-d5b0-43bd-8ddb-7a5d500b7da5"
|
|
severity = "high"
|
|
tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access"]
|
|
timestamp_override = "event.ingested"
|
|
type = "eql"
|
|
|
|
query = '''
|
|
registry where event.type in ("creation", "change") and
|
|
registry.path:"HKLM\\SYSTEM\\*ControlSet*\\Control\\SecurityProviders\\WDigest\\UseLogonCredential" and
|
|
registry.data.strings:"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 = "T1003.001"
|
|
name = "LSASS Memory"
|
|
reference = "https://attack.mitre.org/techniques/T1003/001/"
|
|
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0006"
|
|
name = "Credential Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0006/"
|
|
|