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[Rule Tuning] SMTP on Port 26/TCP (#3521)

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(cherry picked from commit 07abc19932)
This commit is contained in:
Mika Ayenson
2024-03-19 15:55:25 -05:00
committed by github-actions[bot]
parent f66da9d350
commit 32ed8f141d
1 changed files with 2 additions and 3 deletions
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rules/network/command_and_control_port_26_activity.toml
+2 -3
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@@ -4,7 +4,7 @@ integration = ["network_traffic"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/08/17"
updated_date = "2024/03/18"
[rule]
author = ["Elastic"]
@@ -36,8 +36,7 @@ timestamp_override = "event.ingested"
type = "query"
query = '''
(event.dataset: network_traffic.flow or (event.category: (network or network_traffic))) and
network.transport:tcp and (destination.port:26 or (event.dataset:zeek.smtp and destination.port:26))
(event.dataset: (network_traffic.flow or zeek.smtp) or event.category:(network or network_traffic)) and network.transport:tcp and destination.port:26
'''