Samirbous
d1dc7b413e
* [New Rule] Apple Script Execution followed by Network Connection * Update rules/macos/execution_scripting_osascript_exec_followed_by_netcon.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/macos/execution_scripting_osascript_exec_followed_by_netcon.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * excluding LAN and loopback addresses * Update rules/macos/execution_scripting_osascript_exec_followed_by_netcon.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/macos/execution_scripting_osascript_exec_followed_by_netcon.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/macos/execution_scripting_osascript_exec_followed_by_netcon.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
67 lines
2.1 KiB
TOML
67 lines
2.1 KiB
TOML
[metadata]
|
|
creation_date = "2020/12/07"
|
|
maturity = "production"
|
|
updated_date = "2020/12/07"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Detects execution via the Apple script interpreter (osascript) followed by a network connection from
|
|
the same process within a short time period. Adversaries may use malicious scripts for execution and command and
|
|
control.
|
|
"""
|
|
from = "now-9m"
|
|
index = ["auditbeat-*", "logs-endpoint.events.*"]
|
|
language = "eql"
|
|
license = "Elastic License"
|
|
name = "Apple Script Execution followed by Network Connection"
|
|
references = [
|
|
"https://developer.apple.com/library/archive/documentation/LanguagesUtilities/Conceptual/MacAutomationScriptingGuide/index.html",
|
|
]
|
|
risk_score = 47
|
|
rule_id = "47f76567-d58a-4fed-b32b-21f571e28910"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "macOS", "Threat Detection", "Command and Control", "Execution"]
|
|
type = "eql"
|
|
|
|
query = '''
|
|
sequence by host.id, process.entity_id with maxspan=30s
|
|
[process where event.type == "start" and process.name == "osascript"]
|
|
[network where event.type != "end" and process.name == "osascript" and destination.ip != "::1" and
|
|
not cidrmatch(destination.ip, "10.0.0.0/8",
|
|
"172.16.0.0/12",
|
|
"192.168.0.0/16",
|
|
"127.0.0.0/8",
|
|
"169.254.0.0/16",
|
|
"224.0.0.0/4",
|
|
"FE80::/10",
|
|
"FF00::/8")
|
|
]
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1059"
|
|
name = "Command and Scripting Interpreter"
|
|
reference = "https://attack.mitre.org/techniques/T1059/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0002"
|
|
name = "Execution"
|
|
reference = "https://attack.mitre.org/tactics/TA0002/"
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1105"
|
|
name = "Ingress Tool Transfer"
|
|
reference = "https://attack.mitre.org/techniques/T1105/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0011"
|
|
name = "Command and Control"
|
|
reference = "https://attack.mitre.org/tactics/TA0011/"
|