Colson Wilhoit
150ff0502e
* Linux Shell Evasion Rule Tuning * Update execution_python_tty_shell.toml * Update rules/linux/execution_apt_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_apt_binary.toml * Update rules/linux/execution_awk_binary_shell.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_awk_binary_shell.toml * Update rules/linux/execution_c89_c99_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_c89_c99_binary.toml * Update rules/linux/execution_cpulimit_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_cpulimit_binary.toml * Update rules/linux/execution_expect_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_expect_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_expect_binary.toml * Update rules/linux/execution_find_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_find_binary.toml * Update rules/linux/execution_gcc_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_gcc_binary.toml * Update rules/linux/execution_mysql_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_mysql_binary.toml * Update rules/linux/execution_nice_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_nice_binary.toml * Update rules/linux/execution_ssh_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_ssh_binary.toml * Update execution_perl_tty_shell.toml * Update execution_python_tty_shell.toml * Update rules/linux/execution_apt_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_awk_binary_shell.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_c89_c99_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_cpulimit_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_expect_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_find_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_gcc_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_mysql_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_nice_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Update rules/linux/execution_ssh_binary.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
58 lines
2.0 KiB
TOML
58 lines
2.0 KiB
TOML
[metadata]
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creation_date = "2020/05/26"
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maturity = "production"
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updated_date = "2021/07/20"
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integration = "aws"
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[rule]
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author = ["Elastic", "Austin Songer"]
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description = """
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Identifies the deactivation of a specified multi-factor authentication (MFA) device and removes it from association with
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the user name for which it was originally enabled. In AWS Identity and Access Management (IAM), a device must be
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deactivated before it can be deleted.
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"""
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false_positives = [
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"""
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A MFA device may be deactivated by a system or network administrator. Verify whether the user identity, user agent,
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and/or hostname should be making changes in your environment. MFA device deactivations from unfamiliar users or
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hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
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""",
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]
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from = "now-60m"
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index = ["filebeat-*", "logs-aws*"]
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interval = "10m"
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language = "kuery"
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license = "Elastic License v2"
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name = "AWS IAM Deactivation of MFA Device"
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note = """## Config
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The AWS Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
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references = [
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"https://awscli.amazonaws.com/v2/documentation/api/latest/reference/iam/deactivate-mfa-device.html",
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"https://docs.aws.amazon.com/IAM/latest/APIReference/API_DeactivateMFADevice.html",
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]
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risk_score = 47
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rule_id = "d8fc1cca-93ed-43c1-bbb6-c0dd3eff2958"
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severity = "medium"
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tags = ["Elastic", "Cloud", "AWS", "Continuous Monitoring", "SecOps", "Monitoring"]
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timestamp_override = "event.ingested"
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type = "query"
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query = '''
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event.dataset:aws.cloudtrail and event.provider:iam.amazonaws.com and event.action:(DeactivateMFADevice or DeleteVirtualMFADevice) and event.outcome:success
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1531"
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name = "Account Access Removal"
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reference = "https://attack.mitre.org/techniques/T1531/"
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[rule.threat.tactic]
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id = "TA0040"
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name = "Impact"
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reference = "https://attack.mitre.org/tactics/TA0040/"
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