collection_linux_suspicious_clipboard_activity.toml

[metadata]
creation_date = "2023/07/27"
integration = ["endpoint", "auditd_manager"]
maturity = "production"
updated_date = "2024/05/21"

[rule]
author = ["Elastic"]
building_block_type = "default"
description = """
This rule monitors for the usage of the most common clipboard utilities on unix systems by an uncommon process group
leader. Adversaries may collect data stored in the clipboard from users copying information within or between
applications.
"""
from = "now-119m"
index = ["logs-endpoint.events.*", "endgame-*", "auditbeat-*", "logs-auditd_manager.auditd-*"]
interval = "60m"
language = "kuery"
license = "Elastic License v2"
name = "Potential Suspicious Clipboard Activity Detected"
risk_score = 21
rule_id = "884e87cc-c67b-4c90-a4ed-e1e24a940c82"
severity = "low"
tags = [
    "Domain: Endpoint",
    "OS: Linux",
    "Use Case: Threat Detection",
    "Tactic: Collection",
    "Rule Type: BBR",
    "Data Source: Elastic Defend",
    "Data Source: Elastic Endgame",
    "Data Source: Auditd Manager",
]
timestamp_override = "event.ingested"
type = "new_terms"

query = '''
event.category:process and host.os.type:"linux" and
event.type:"start" and event.action:("exec" or "exec_event" or "executed" or "process_started") and
process.name:("xclip" or "xsel" or "wl-clipboard" or "clipman" or "copyq")
'''


[[rule.threat]]
framework = "MITRE ATT&CK"
[[rule.threat.technique]]
id = "T1115"
name = "Clipboard Data"
reference = "https://attack.mitre.org/techniques/T1115/"


[rule.threat.tactic]
id = "TA0009"
name = "Collection"
reference = "https://attack.mitre.org/tactics/TA0009/"

[rule.new_terms]
field = "new_terms_fields"
value = ["host.id", "process.group_leader.executable"]
[[rule.new_terms.history_window_start]]
field = "history_window_start"
value = "now-7d"