From d5fa226180fd5ed5f6ec3f554d23e1faeef35004 Mon Sep 17 00:00:00 2001 From: Cyb3rEng <88643791+Cyb3rEng@users.noreply.github.com> Date: Tue, 31 Aug 2021 21:54:32 -0600 Subject: [PATCH] Updated Rule Completed the following updates on the rule: - Modified the title - incremented 4 spaces for references and tags - updated author - updated description in detection section. - Removed the service: Sysmon, updated selection1. --- ...creations_with_Wmiprvse_parent_process.yml | 24 +++++++++---------- 1 file changed, 11 insertions(+), 13 deletions(-) diff --git a/rules/windows/sysmon/Monitor_LOLBins_process_creations_with_Wmiprvse_parent_process.yml b/rules/windows/sysmon/Monitor_LOLBins_process_creations_with_Wmiprvse_parent_process.yml index 3acabbeab..f08b2b5a9 100644 --- a/rules/windows/sysmon/Monitor_LOLBins_process_creations_with_Wmiprvse_parent_process.yml +++ b/rules/windows/sysmon/Monitor_LOLBins_process_creations_with_Wmiprvse_parent_process.yml @@ -1,25 +1,23 @@ -title: LOLBins process creations with Wmiprvse parent process(sysmon) +title: LOLBins Process Created With WmiPrvSE description: This rule will monitor LOLBin process creations by wmiprvse. Add more LOLBins to rule logic if needed. references: -- https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/ -- https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml -author: "Idea by: Vadim Khrykov" + - https://thedfirreport.com/2021/03/29/sodinokibi-aka-revil-ransomware/ + - https://github.com/vadim-hunter/Detection-Ideas-Rules/blob/main/Threat%20Intelligence/The%20DFIR%20Report/20210329_Sodinokibi_(aka_REvil)_Ransomware.yaml +author: "Vadim Khrykov (ThreatIntel), Cyb3rEng (Rule)" tags: -- attack.t1204.002 -- attack.t1047 -- attack.t1218.010 -- attack.execution -- attack.defence_evasion + - attack.t1204.002 + - attack.t1047 + - attack.t1218.010 + - attack.execution + - attack.defence_evasion status: experimental Date: 2021/23/8 logsource: product: Windows - service: Sysmon category: process_creation detection: - description: add more LOLBins to the rules logic of your choice. + #useful_information: add more LOLBins to the rules logic of your choice. selection1: - EventLog: Microsoft-Windows-Sysmon/Operational EventID: 1 selection2: Image|endswith: @@ -34,4 +32,4 @@ detection: condition: selection1 AND selection2 AND selection3 falsepositives: - "FPs are possible here, but some LOLBins weren't excluded for obvious reasons." -level: high \ No newline at end of file +level: high