Mika Ayenson
73 lines
2.4 KiB
TOML
73 lines
2.4 KiB
TOML
[metadata]
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creation_date = "2020/01/04"
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maturity = "production"
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updated_date = "2022/07/13"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the execution of a process with arguments pointing to known browser files that store passwords and cookies.
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Adversaries may acquire credentials from web browsers by reading files specific to the target browser.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Access of Stored Browser Credentials"
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note = """## Setup
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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"""
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references = ["https://securelist.com/calisto-trojan-for-macos/86543/"]
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risk_score = 73
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rule_id = "20457e4f-d1de-4b92-ae69-142e27a4342a"
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severity = "high"
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tags = ["Elastic", "Host", "macOS", "Threat Detection", "Credential Access"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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process where event.type in ("start", "process_started") and
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process.args :
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(
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"/Users/*/Library/Application Support/Google/Chrome/Default/Login Data",
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"/Users/*/Library/Application Support/Google/Chrome/Default/Cookies",
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"/Users/*/Library/Application Support/Google/Chrome/Profile*/Cookies",
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"/Users/*/Library/Cookies*",
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"/Users/*/Library/Application Support/Firefox/Profiles/*.default/cookies.sqlite",
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"/Users/*/Library/Application Support/Firefox/Profiles/*.default/key*.db",
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"/Users/*/Library/Application Support/Firefox/Profiles/*.default/logins.json",
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"Login Data",
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"Cookies.binarycookies",
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"key4.db",
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"key3.db",
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"logins.json",
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"cookies.sqlite"
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)
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1539"
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name = "Steal Web Session Cookie"
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reference = "https://attack.mitre.org/techniques/T1539/"
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[[rule.threat.technique]]
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id = "T1555"
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name = "Credentials from Password Stores"
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reference = "https://attack.mitre.org/techniques/T1555/"
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[[rule.threat.technique.subtechnique]]
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id = "T1555.003"
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name = "Credentials from Web Browsers"
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reference = "https://attack.mitre.org/techniques/T1555/003/"
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[rule.threat.tactic]
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id = "TA0006"
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name = "Credential Access"
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reference = "https://attack.mitre.org/tactics/TA0006/"
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