Access of Stored Browser Credentials

 1[metadata]
 2creation_date = "2020/01/04"
 3integration = ["endpoint"]
 4maturity = "production"
 5min_stack_comments = "New fields added: required_fields, related_integrations, setup"
 6min_stack_version = "8.3.0"
 7updated_date = "2023/06/22"
 8
 9[rule]
10author = ["Elastic"]
11description = """
12Identifies the execution of a process with arguments pointing to known browser files that store passwords and cookies.
13Adversaries may acquire credentials from web browsers by reading files specific to the target browser.
14"""
15from = "now-9m"
16index = ["auditbeat-*", "logs-endpoint.events.*"]
17language = "eql"
18license = "Elastic License v2"
19name = "Access of Stored Browser Credentials"
20note = """## Setup
21
22If 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.
23"""
24references = ["https://securelist.com/calisto-trojan-for-macos/86543/"]
25risk_score = 73
26rule_id = "20457e4f-d1de-4b92-ae69-142e27a4342a"
27severity = "high"
28tags = ["Domain: Endpoint", "OS: macOS", "Use Case: Threat Detection", "Tactic: Credential Access", "Data Source: Elastic Defend"]
29timestamp_override = "event.ingested"
30type = "eql"
31
32query = '''
33process where host.os.type == "macos" and event.type in ("start", "process_started") and
34  process.args :
35    (
36      "/Users/*/Library/Application Support/Google/Chrome/Default/Login Data",
37      "/Users/*/Library/Application Support/Google/Chrome/Default/Cookies",
38      "/Users/*/Library/Application Support/Google/Chrome/Profile*/Cookies",
39      "/Users/*/Library/Cookies*",
40      "/Users/*/Library/Application Support/Firefox/Profiles/*.default/cookies.sqlite",
41      "/Users/*/Library/Application Support/Firefox/Profiles/*.default/key*.db",
42      "/Users/*/Library/Application Support/Firefox/Profiles/*.default/logins.json",
43      "Login Data",
44      "Cookies.binarycookies",
45      "key4.db",
46      "key3.db",
47      "logins.json",
48      "cookies.sqlite"
49    )
50'''
51
52
53[[rule.threat]]
54framework = "MITRE ATT&CK"
55[[rule.threat.technique]]
56id = "T1539"
57name = "Steal Web Session Cookie"
58reference = "https://attack.mitre.org/techniques/T1539/"
59
60[[rule.threat.technique]]
61id = "T1555"
62name = "Credentials from Password Stores"
63reference = "https://attack.mitre.org/techniques/T1555/"
64[[rule.threat.technique.subtechnique]]
65id = "T1555.003"
66name = "Credentials from Web Browsers"
67reference = "https://attack.mitre.org/techniques/T1555/003/"
68
69
70
71[rule.threat.tactic]
72id = "TA0006"
73name = "Credential Access"
74reference = "https://attack.mitre.org/tactics/TA0006/"