diff --git a/rules/windows/registry/registry_set/registry_set_taskcache_entry.yml b/rules/windows/registry/registry_set/registry_set_taskcache_entry.yml index ec3a77ffd..182b322bc 100644 --- a/rules/windows/registry/registry_set/registry_set_taskcache_entry.yml +++ b/rules/windows/registry/registry_set/registry_set_taskcache_entry.yml @@ -3,7 +3,7 @@ id: 4720b7df-40c3-48fd-bbdf-fd4b3c464f0d description: Monitor the creation of a new key under 'TaskCache' when a new scheduled task is registered by a process that is not svchost.exe, which is suspicious status: experimental date: 2021/06/18 -modified: 2022/07/27 +modified: 2022/07/29 references: - https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/ - https://labs.f-secure.com/blog/scheduled-task-tampering/ @@ -23,7 +23,11 @@ detection: filter_tiworker: Image|startswith: 'C:\Windows\' Image|endswith: '\TiWorker.exe' - TargetObject|contains: '\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\PLAIN\{1A552422-F571-4376-A7F1-5941E63D7B40}' + TargetObject|contains: + - '\MICROSOFT\WINDOWS NT\CURRENTVERSION\SCHEDULE\TASKCACHE\PLAIN\{1A552422-F571-4376-A7F1-5941E63D7B40}' + - '\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\Microsoft\Windows\DeviceDirectoryClient\' + - '\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{04622042-F26B-4CCA-815F-E7A8375D87E6}' + - '\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{C130EB11-1FDE-4953-B222-F44EEC6E1E8B}' filter_svchost: Image: 'C:\WINDOWS\system32\svchost.exe' filter_ngen: