diff --git a/rules/windows/process_creation/proc_creation_win_lolbin_gpscript.yml b/rules/windows/process_creation/proc_creation_win_lolbin_gpscript.yml new file mode 100644 index 000000000..bd18b7548 --- /dev/null +++ b/rules/windows/process_creation/proc_creation_win_lolbin_gpscript.yml @@ -0,0 +1,25 @@ +title: Gpscript Execution +id: 1e59c230-6670-45bf-83b0-98903780607e +status: experimental +description: Detects the execution of the LOLBIN gpscript, which executes logon or startup scripts configured in Group Policy +references: + - https://oddvar.moe/2018/04/27/gpscript-exe-another-lolbin-to-the-list/ + - https://lolbas-project.github.io/lolbas/Binaries/Gpscript/ +author: frack113 +date: 2022/05/02 +logsource: + product: windows + category: process_creation +detection: + selection: + Image|endswith: '\gpscript.exe' + CommandLine|contains: + - ' /logon' + - ' /startup' + condition: selection +falsepositives: + - Legitimate uses of logon scripts distributed via group policy +level: medium +tags: + - attack.defense_evasion + - attack.t1218 diff --git a/rules/windows/process_creation/proc_creation_win_lolbin_jsc.yml b/rules/windows/process_creation/proc_creation_win_lolbin_jsc.yml new file mode 100644 index 000000000..2a0444ef5 --- /dev/null +++ b/rules/windows/process_creation/proc_creation_win_lolbin_jsc.yml @@ -0,0 +1,22 @@ +title: JSC Convert Javascript To Executable +id: 52788a70-f1da-40dd-8fbd-73b5865d6568 +status: experimental +description: Detects the execution of the LOLBIN jsc.exe used by .NET to compile javascript code to .exe or .dll format +references: + - https://lolbas-project.github.io/lolbas/Binaries/Jsc/ +author: frack113 +date: 2022/05/02 +logsource: + product: windows + category: process_creation +detection: + selection: + Image|endswith: '\jsc.exe' + CommandLine|contains: '.js' + condition: selection +falsepositives: + - Unknown +level: medium +tags: + - attack.defense_evasion + - attack.t1127 diff --git a/rules/windows/process_creation/proc_creation_win_lolbin_printbrm.yml b/rules/windows/process_creation/proc_creation_win_lolbin_printbrm.yml new file mode 100644 index 000000000..a9e8bce20 --- /dev/null +++ b/rules/windows/process_creation/proc_creation_win_lolbin_printbrm.yml @@ -0,0 +1,26 @@ +title: PrintBrm ZIP Creation of Extraction +id: cafeeba3-01da-4ab4-b6c4-a31b1d9730c7 +status: experimental +description: Detects the execution of the LOLBIN PrintBrm.exe, which can be used to create or extract ZIP files. PrintBrm.exe should not be run on a normal workstation. +references: + - https://lolbas-project.github.io/lolbas/Binaries/PrintBrm/ +author: frack113 +date: 2022/05/02 +logsource: + product: windows + category: process_creation +detection: + selection: + Image|endswith: '\PrintBrm.exe' + CommandLine|contains|all: + - ' -f' + - '.zip' + condition: selection +falsepositives: + - Unknown +level: high +tags: + - attack.command_and_control + - attack.t1105 + - attack.defense_evasion + - attack.t1564.004