diff --git a/rules/windows/process_creation/proc_creation_win_rundll32_parent_explorer.yml b/rules/windows/process_creation/proc_creation_win_rundll32_parent_explorer.yml index f1b485722..67faacd00 100644 --- a/rules/windows/process_creation/proc_creation_win_rundll32_parent_explorer.yml +++ b/rules/windows/process_creation/proc_creation_win_rundll32_parent_explorer.yml @@ -7,7 +7,7 @@ references: - https://thedfirreport.com/2022/09/26/bumblebee-round-two/ author: CD_ROM_ date: 2022/05/21 -modified: 2022/12/15 +modified: 2022/12/21 tags: - attack.defense_evasion logsource: @@ -18,7 +18,8 @@ detection: Image|endswith: '\rundll32.exe' ParentImage|endswith: '\explorer.exe' filter: - CommandLine|contains: ' C:\Windows\System32\' # The space at the start is required + - CommandLine|contains: ' C:\Windows\System32\' # The space at the start is required + - CommandLine|endswith: ' -localserver 22d8c27b-47a1-48d1-ad08-7da7abd79617' # Windows 10 volume control condition: selection and not filter fields: - Image