diff --git a/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml b/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml index 7c1fc3063..6fc70a361 100644 --- a/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml +++ b/rules/windows/powershell/powershell_CL_Invocation_LOLScript.yml @@ -19,18 +19,6 @@ detection: ScriptBlockText|contains|all: - 'CL_Invocation.ps1' - 'SyncInvoke' - selection2: - EventID: 4104 - ScriptBlockText|contains: - - 'CL_Invocation.ps1' - - 'SyncInvoke' - timeframe: 1m - condition: - - selection - - selection2 | count(ScriptBlockText) by Computer > 2 - # PS > Import-Module c:\Windows\diagnostics\system\Audio\CL_Invocation.ps1; SyncInvoke c:\Evil.exe - # or - # PS > Import-Module c:\Windows\diagnostics\system\Audio\CL_Invocation.ps1 - # PS > SyncInvoke c:\Evil.exe + condition: selection falsepositives: Unknown -level: high +level: high \ No newline at end of file diff --git a/rules/windows/powershell/powershell_CL_Invocation_LOLScript_v2.yml b/rules/windows/powershell/powershell_CL_Invocation_LOLScript_v2.yml new file mode 100644 index 000000000..f85370f51 --- /dev/null +++ b/rules/windows/powershell/powershell_CL_Invocation_LOLScript_v2.yml @@ -0,0 +1,26 @@ +title: Execution via CL_Invocation.ps1 +id: 4cd29327-685a-460e-9dac-c3ab96e549dc +description: Detects Execution via SyncInvoke in CL_Invocation.ps1 module +status: experimental +author: oscd.community, Natalia Shornikova +date: 2020/10/14 +references: + - https://github.com/LOLBAS-Project/LOLBAS/blob/master/yml/OSScripts/Cl_invocation.yml + - https://twitter.com/bohops/status/948061991012327424 +tags: + - attack.defense_evasion + - attack.t1216 +logsource: + product: windows + service: powershell +detection: + selection2: + EventID: 4104 + ScriptBlockText|contains: + - 'CL_Invocation.ps1' + - 'SyncInvoke' + condition: selection2 | count(ScriptBlockText) by Computer > 2 + # PS > Import-Module c:\Windows\diagnostics\system\Audio\CL_Invocation.ps1 + # PS > SyncInvoke c:\Evil.exe +falsepositives: Unknown +level: high \ No newline at end of file