diff --git a/rules/windows/process_creation/process_creation_stickykey_like_backdoor.yml b/rules/windows/process_creation/process_creation_stickykey_like_backdoor.yml new file mode 100644 index 000000000..6e9c71ef5 --- /dev/null +++ b/rules/windows/process_creation/process_creation_stickykey_like_backdoor.yml @@ -0,0 +1,37 @@ +title: Sticky Key Like Backdoor Usage +id: 2fdefcb3-dbda-401e-ae23-f0db027628bc +related: + - id: baca5663-583c-45f9-b5dc-ea96a22ce542 + type: derived +description: Detects the usage and installation of a backdoor that uses an option to register a malicious debugger for built-in tools that are accessible in the login + screen +references: + - https://blogs.technet.microsoft.com/jonathantrull/2016/10/03/detecting-sticky-key-backdoors/ +tags: + - attack.privilege_escalation + - attack.persistence + - attack.t1015 # an old one + - attack.t1546.008 + - car.2014-11-003 + - car.2014-11-008 +author: Florian Roth, @twjackomo, Jonhnathan Ribeiro, oscd.community +date: 2018/03/15 +modified: 2021/09/12 +logsource: + category: process_creation + product: windows +detection: + selection_process: + ParentImage|endswith: '\winlogon.exe' + Image|endswith: '\cmd.exe' + CommandLine|contains: + - 'sethc.exe' + - 'utilman.exe' + - 'osk.exe' + - 'Magnify.exe' + - 'Narrator.exe' + - 'DisplaySwitch.exe' + condition: selection_process +falsepositives: + - Unlikely +level: critical \ No newline at end of file diff --git a/rules/windows/registry_event/sysmon_stickykey_like_backdoor.yml b/rules/windows/registry_event/registry_event_stickykey_like_backdoor.yml similarity index 73% rename from rules/windows/registry_event/sysmon_stickykey_like_backdoor.yml rename to rules/windows/registry_event/registry_event_stickykey_like_backdoor.yml index eeaeb2cf6..2ec90b7c1 100755 --- a/rules/windows/registry_event/sysmon_stickykey_like_backdoor.yml +++ b/rules/windows/registry_event/registry_event_stickykey_like_backdoor.yml @@ -1,5 +1,5 @@ -action: global title: Sticky Key Like Backdoor Usage +id: baca5663-583c-45f9-b5dc-ea96a22ce542 description: Detects the usage and installation of a backdoor that uses an option to register a malicious debugger for built-in tools that are accessible in the login screen references: @@ -13,12 +13,7 @@ tags: - car.2014-11-008 author: Florian Roth, @twjackomo, Jonhnathan Ribeiro, oscd.community date: 2018/03/15 -modified: 2020/11/28 -falsepositives: - - Unlikely -level: critical ---- -id: baca5663-583c-45f9-b5dc-ea96a22ce542 +modified: 2021/09/12 logsource: category: registry_event product: windows @@ -31,21 +26,7 @@ detection: - '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Magnify.exe\Debugger' - '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Narrator.exe\Debugger' - '\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\DisplaySwitch.exe\Debugger' - condition: 1 of them ---- -id: 2fdefcb3-dbda-401e-ae23-f0db027628bc -logsource: - category: process_creation - product: windows -detection: - selection_process: - ParentImage|endswith: '\winlogon.exe' - Image|endswith: '\cmd.exe' - CommandLine|contains: - - 'sethc.exe' - - 'utilman.exe' - - 'osk.exe' - - 'Magnify.exe' - - 'Narrator.exe' - - 'DisplaySwitch.exe' - condition: 1 of them + condition: selection_registry +falsepositives: + - Unlikely +level: critical \ No newline at end of file