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>
56 lines
2.2 KiB
TOML
56 lines
2.2 KiB
TOML
[metadata]
|
|
creation_date = "2020/08/12"
|
|
maturity = "production"
|
|
updated_date = "2021/12/30"
|
|
integration = "azure"
|
|
|
|
[rule]
|
|
author = ["Austin Songer"]
|
|
description = """
|
|
Identifies when a virtual network device is modified or deleted. This can be a network virtual
|
|
appliance, virtual hub, or virtual router.
|
|
"""
|
|
false_positives = [
|
|
"""
|
|
Virtual Network Device modification or deletion may be performed by a system administrator. Verify
|
|
whether the user identity, user agent, and/or hostname should be making changes in your environment.
|
|
Virtual Network Device modification or deletion by unfamiliar users should be investigated. If known
|
|
behavior is causing false positives, it can be exempted from the rule.
|
|
""",
|
|
]
|
|
from = "now-25m"
|
|
index = ["filebeat-*", "logs-azure*"]
|
|
language = "kuery"
|
|
license = "Elastic License v2"
|
|
name = "Azure Virtual Network Device Modified or Deleted"
|
|
note = """## Config
|
|
|
|
The Azure Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
|
|
references = ["https://docs.microsoft.com/en-us/azure/role-based-access-control/resource-provider-operations"]
|
|
risk_score = 21
|
|
rule_id = "573f6e7a-7acf-4bcd-ad42-c4969124d3c0"
|
|
severity = "low"
|
|
tags = ["Elastic", "Cloud", "Azure", "Continuous Monitoring", "SecOps", "Network Security"]
|
|
timestamp_override = "event.ingested"
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.dataset:azure.activitylogs and azure.activitylogs.operation_name:("MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/WRITE" or
|
|
"MICROSOFT.NETWORK/NETWORKINTERFACES/TAPCONFIGURATIONS/DELETE" or "MICROSOFT.NETWORK/NETWORKINTERFACES/WRITE" or
|
|
"MICROSOFT.NETWORK/NETWORKINTERFACES/JOIN/ACTION" or "MICROSOFT.NETWORK/NETWORKINTERFACES/DELETE" or
|
|
"MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/DELETE" or "MICROSOFT.NETWORK/NETWORKVIRTUALAPPLIANCES/WRITE" or
|
|
"MICROSOFT.NETWORK/VIRTUALHUBS/DELETE" or "MICROSOFT.NETWORK/VIRTUALHUBS/WRITE" or
|
|
"MICROSOFT.NETWORK/VIRTUALROUTERS/WRITE" or "MICROSOFT.NETWORK/VIRTUALROUTERS/DELETE") and
|
|
event.outcome:(Success or success)
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0040"
|
|
name = "Impact"
|
|
reference = "https://attack.mitre.org/tactics/TA0040/"
|