diff --git a/rules/windows/defense_evasion_reg_disable_enableglobalqueryblocklist.toml b/rules/windows/defense_evasion_reg_disable_enableglobalqueryblocklist.toml new file mode 100644 index 00000000000..e3ee0189440 --- /dev/null +++ b/rules/windows/defense_evasion_reg_disable_enableglobalqueryblocklist.toml @@ -0,0 +1,79 @@ +[metadata] +creation_date = "2024/05/31" +integration = ["endpoint", "windows"] +maturity = "production" +updated_date = "2024/05/31" + +[rule] +author = ["Elastic"] +description = """ +Identifies changes to the DNS Global Query Block List (GQBL), a security feature that prevents the resolution of certain +DNS names often exploited in attacks like WPAD spoofing. Attackers with certain privileges, such as DNSAdmins, can +modify or disable the GQBL, allowing exploitation of hosts running WPAD with default settings for privilege escalation +and lateral movement. +""" +from = "now-9m" +index = ["logs-endpoint.events.registry-*", "logs-windows.sysmon_operational-*"] +language = "eql" +license = "Elastic License v2" +name = "DNS Global Query Block List Modified or Disabled" +references = [ + "https://cube0x0.github.io/Pocing-Beyond-DA/", + "https://www.thehacker.recipes/ad/movement/mitm-and-coerced-authentications/wpad-spoofing", + "https://www.netspi.com/blog/technical-blog/network-penetration-testing/adidns-revisited/" +] +risk_score = 47 +rule_id = "57bfa0a9-37c0-44d6-b724-54bf16787492" +severity = "medium" +tags = [ + "Domain: Endpoint", + "OS: Windows", + "Use Case: Threat Detection", + "Tactic: Defense Evasion", + "Data Source: Elastic Defend", + "Data Source: Sysmon" +] +timestamp_override = "event.ingested" +type = "eql" + +query = ''' +registry where host.os.type == "windows" and event.type : "change" and +( + (registry.value : "EnableGlobalQueryBlockList" and registry.data.strings : ("0", "0x00000000")) or + (registry.value : "GlobalQueryBlockList" and not registry.data.strings : "wpad") +) +''' + + +[[rule.threat]] +framework = "MITRE ATT&CK" +[[rule.threat.technique]] +id = "T1562" +name = "Impair Defenses" +reference = "https://attack.mitre.org/techniques/T1562/" +[[rule.threat.technique.subtechnique]] +id = "T1562.001" +name = "Disable or Modify Tools" +reference = "https://attack.mitre.org/techniques/T1562/001/" + + + +[rule.threat.tactic] +id = "TA0005" +name = "Defense Evasion" +reference = "https://attack.mitre.org/tactics/TA0005/" + + +[[rule.threat]] +framework = "MITRE ATT&CK" +[[rule.threat.technique]] +id = "T1557" +name = "Adversary-in-the-Middle" +reference = "https://attack.mitre.org/techniques/T1557/" + + +[rule.threat.tactic] +id = "TA0006" +name = "Credential Access" +reference = "https://attack.mitre.org/tactics/TA0006/" +