diff --git a/rules/macos/persistence_directory_services_plugins_modification.toml b/rules/macos/persistence_directory_services_plugins_modification.toml new file mode 100644 index 000000000..cbccc410b --- /dev/null +++ b/rules/macos/persistence_directory_services_plugins_modification.toml @@ -0,0 +1,44 @@ +[metadata] +creation_date = "2021/01/13" +maturity = "production" +updated_date = "2021/01/13" + +[rule] +author = ["Elastic"] +description = """ +Identifies the creation or modification of a DirectoryService PlugIns (dsplug) file. The DirectoryService daemonlaunches +on each system boot and automatically reloads after crash. It scans and executes bundles that are located in the +DirectoryServices PlugIns folder and can be abused by adversaries to maintain persistence. +""" +false_positives = ["Trusted DirectoryService PlugIns"] +from = "now-9m" +index = ["auditbeat-*", "logs-endpoint.events.*"] +language = "kuery" +license = "Elastic License" +name = "Persistence via DirectoryService Plugin Modification" +references = ["https://blog.chichou.me/2019/11/21/two-macos-persistence-tricks-abusing-plugins/"] +risk_score = 47 +rule_id = "89fa6cb7-6b53-4de2-b604-648488841ab8" +severity = "medium" +tags = ["Elastic", "Host", "macOS", "Threat Detection", "Persistence"] +type = "query" + +query = ''' +event.category:file and not event.type:deletion and + file.path:/Library/DirectoryServices/PlugIns/*.dsplug +''' + + +[[rule.threat]] +framework = "MITRE ATT&CK" +[[rule.threat.technique]] +id = "T1547" +name = "Boot or Logon Autostart Execution" +reference = "https://attack.mitre.org/techniques/T1547/" + + +[rule.threat.tactic] +id = "TA0003" +name = "Persistence" +reference = "https://attack.mitre.org/tactics/TA0003/" +