diff --git a/rules/windows/privilege_escalation_uac_bypass_com_clipup.toml b/rules/windows/privilege_escalation_uac_bypass_com_clipup.toml new file mode 100644 index 000000000..28c99a432 --- /dev/null +++ b/rules/windows/privilege_escalation_uac_bypass_com_clipup.toml @@ -0,0 +1,44 @@ +[metadata] +creation_date = "2020/10/28" +ecs_version = ["1.6.0"] +maturity = "production" +updated_date = "2020/10/28" + +[rule] +author = ["Elastic"] +description = """ +Identifies attempts to bypass User Account Control (UAC) by abusing an elevated COM Interface to launch a rogue +Windows ClipUp program. Attackers may attempt to bypass UAC to stealthily execute code with elevated permissions. +""" +from = "now-9m" +index = ["winlogbeat-*", "logs-endpoint.events.*"] +language = "eql" +license = "Elastic License" +name = "UAC Bypass Attempt with IEditionUpgradeManager Elevated COM Interface" +references = ["https://github.com/hfiref0x/UACME"] +risk_score = 71 +rule_id = "b90cdde7-7e0d-4359-8bf0-2c112ce2008a" +severity = "high" +tags = ["Elastic", "Host", "Windows", "Threat Detection", "Privilege Escalation"] +type = "eql" + +query = ''' +process where event.type in ("start", "process_started", "info") and process.name == "Clipup.exe" and +process.executable != "C:\\Windows\\System32\\ClipUp.exe" and process.parent.name == "dllhost.exe" and + /* CLSID of the Elevated COM Interface IEditionUpgradeManager */ + wildcard(process.parent.args,"/Processid:{BD54C901-076B-434E-B6C7-17C531F4AB41}") +''' + + +[[rule.threat]] +framework = "MITRE ATT&CK" +[[rule.threat.technique]] +id = "T1088" +name = "Bypass User Account Control" +reference = "https://attack.mitre.org/techniques/T1088/" + + +[rule.threat.tactic] +id = "TA0004" +name = "Privilege Escalation" +reference = "https://attack.mitre.org/tactics/TA0004/"