From ae7a648e7253fef5afb6c19b9d336feeee12d5a0 Mon Sep 17 00:00:00 2001 From: root Date: Wed, 9 Sep 2020 12:25:00 +0000 Subject: [PATCH] Added detection testing service results inAccess LSASS Memory for Dump Creation --- .../access_lsass_memory_for_dump_creation.yml | 25 ++++++++++--------- 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/detections/access_lsass_memory_for_dump_creation.yml b/detections/access_lsass_memory_for_dump_creation.yml index d1753d4c50..c3be56cd49 100644 --- a/detections/access_lsass_memory_for_dump_creation.yml +++ b/detections/access_lsass_memory_for_dump_creation.yml @@ -1,6 +1,4 @@ -name: Access LSASS Memory for Dump Creation -id: fb4c31b0-13e8-4155-8aa5-24de4b8d6717 -version: 2 +author: Patrick Bareiss, Splunk date: '2019-12-06' description: Detect memory dumping of the LSASS process. how_to_implement: This search requires Sysmon Logs and a Sysmon configuration, which @@ -9,27 +7,30 @@ how_to_implement: This search requires Sysmon Logs and a Sysmon configuration, w (index, source, sourcetype, etc.) for Windows Sysmon logs. Replace the macro definition with configurations for your Splunk environment. The search also uses a post-filter macro designed to filter out known false positives. -type: ESCU +id: fb4c31b0-13e8-4155-8aa5-24de4b8d6717 +known_false_positives: Administrators can create memory dumps for debugging purposes, + but memory dumps of the LSASS process would be unusual. +name: Access LSASS Memory for Dump Creation references: - https://2017.zeronights.org/wp-content/uploads/materials/ZN17_Kheirkhabarov_Hunting_for_Credentials_Dumping_in_Windows_Environment.pdf -author: Patrick Bareiss, Splunk search: '`sysmon` EventCode=10 TargetImage=*lsass.exe CallTrace=*dbgcore.dll* OR CallTrace=*dbghelp.dll* | stats count min(_time) as firstTime max(_time) as lastTime by Computer, TargetImage, TargetProcessId, SourceImage, SourceProcessId | rename Computer as dest | `security_content_ctime(firstTime)`| `security_content_ctime(lastTime)` | `access_lsass_memory_for_dump_creation_filter` ' -known_false_positives: Administrators can create memory dumps for debugging purposes, - but memory dumps of the LSASS process would be unusual. tags: analytics_story: - Credential Dumping - mitre_attack_id: - - T1003.001 - kill_chain_phases: - - Actions on Objectives + asset_type: Windows + automated_detection_testing: passed cis20: - CIS 6 - CIS 8 + kill_chain_phases: + - Actions on Objectives + mitre_attack_id: + - T1003.001 nist: - DE.CM security_domain: endpoint - asset_type: Windows +type: ESCU +version: 2