Samirbous
a5ded6513c
* [New Rule] Browser Hijack via Setting the Web Proxy to Localhost * fixed dates * adjusted query to include traffic redirection * relinted * added extra arg * reduced severity * Update rules/macos/credential_access_mitm_localhost_webproxy.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * Update rules/macos/credential_access_mitm_localhost_webproxy.toml Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> * Update rules/macos/credential_access_mitm_localhost_webproxy.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Update rules/macos/credential_access_mitm_localhost_webproxy.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Andrew Pease <7442091+peasead@users.noreply.github.com> Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
46 lines
1.4 KiB
TOML
46 lines
1.4 KiB
TOML
[metadata]
|
|
creation_date = "2021/01/05"
|
|
maturity = "production"
|
|
updated_date = "2021/01/05"
|
|
|
|
[rule]
|
|
author = ["Elastic"]
|
|
description = """
|
|
Identifies the use of the built-in networksetup command to configure webproxy settings. This may indicate an attempt to
|
|
hijack web browser traffic for credential access via traffic sniffing or redirection.
|
|
"""
|
|
false_positives = ["Legitimate WebProxy Settings Modification"]
|
|
from = "now-9m"
|
|
index = ["auditbeat-*", "logs-endpoint.events.*"]
|
|
language = "kuery"
|
|
license = "Elastic License"
|
|
name = "WebProxy Settings Modification"
|
|
references = [
|
|
"https://unit42.paloaltonetworks.com/mac-malware-steals-cryptocurrency-exchanges-cookies/",
|
|
"https://objectivebythesea.com/v2/talks/OBTS_v2_Zohar.pdf",
|
|
]
|
|
risk_score = 47
|
|
rule_id = "10a500bb-a28f-418e-ba29-ca4c8d1a9f2f"
|
|
severity = "medium"
|
|
tags = ["Elastic", "Host", "macOS", "Threat Detection", "Credential Access"]
|
|
type = "query"
|
|
|
|
query = '''
|
|
event.category:process and event.type:start and
|
|
process.name:networksetup and process.args:("-setwebproxy" or "-setsecurewebproxy" or "-setautoproxyurl")
|
|
'''
|
|
|
|
|
|
[[rule.threat]]
|
|
framework = "MITRE ATT&CK"
|
|
[[rule.threat.technique]]
|
|
id = "T1539"
|
|
name = "Steal Web Session Cookie"
|
|
reference = "https://attack.mitre.org/techniques/T1539/"
|
|
|
|
|
|
[rule.threat.tactic]
|
|
id = "TA0006"
|
|
name = "Credential Access"
|
|
reference = "https://attack.mitre.org/tactics/TA0006/"
|