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[Tuning] Reverse Shell Rules (#2959)

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* [Rule Tuning] Reverse Shell Rule destination.ip tuning

* Updated updated_date
This commit is contained in:
Ruben Groenewoud
2023-07-25 14:55:56 +02:00
committed by GitHub
parent 93845626b7
commit dbd7ed65a9
5 changed files with 14 additions and 10 deletions
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rules/linux/execution_shell_via_java_revshell_linux.toml
+3 -2
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@@ -4,7 +4,7 @@ integration = ["endpoint"]
maturity = "production"
min_stack_comments = "New fields added: required_fields, related_integrations, setup"
min_stack_version = "8.3.0"
updated_date = "2023/07/04"
updated_date = "2023/07/25"
[rule]
author = ["Elastic"]
@@ -28,7 +28,8 @@ type = "eql"
query = '''
sequence by host.id with maxspan=5s
[ network where host.os.type == "linux" and event.action in ("connection_accepted", "connection_attempted") and
process.executable : ("/usr/bin/java", "/bin/java", "/usr/lib/jvm/*", "/usr/java/*") ] by process.entity_id
process.executable : ("/usr/bin/java", "/bin/java", "/usr/lib/jvm/*", "/usr/java/*") and
destination.ip != null and destination.ip != "127.0.0.1" and destination.ip != "::1" ] by process.entity_id
[ process where host.os.type == "linux" and event.action == "exec" and
process.parent.executable : ("/usr/bin/java", "/bin/java", "/usr/lib/jvm/*", "/usr/java/*") and
process.parent.args : "-jar" and process.executable : "*sh" ] by process.parent.entity_id