From d072472b25d7cbd1e8913fcd15e9fc62ca46ea13 Mon Sep 17 00:00:00 2001 From: Tim Shelton Date: Tue, 10 May 2022 21:29:05 +0000 Subject: [PATCH] filtering out dnsZoneScope --- .../builtin/security/win_account_backdoor_dcsync_rights.yml | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/rules/windows/builtin/security/win_account_backdoor_dcsync_rights.yml b/rules/windows/builtin/security/win_account_backdoor_dcsync_rights.yml index 4fb27b2df..9218d3288 100644 --- a/rules/windows/builtin/security/win_account_backdoor_dcsync_rights.yml +++ b/rules/windows/builtin/security/win_account_backdoor_dcsync_rights.yml @@ -4,7 +4,7 @@ description: backdooring domain object to grant the rights associated with DCSyn Extended Right cmdlet, will allow to re-obtain the pwd hashes of any user/computer status: experimental date: 2019/04/03 -modified: 2022/05/05 +modified: 2022/05/10 author: Samir Bousseaden; Roberto Rodriguez @Cyb3rWard0g; oscd.community; Tim Shelton references: - https://twitter.com/menasec1/status/1111556090137903104 @@ -24,7 +24,9 @@ detection: - '1131f6aa-9c07-11d1-f79f-00c04fc2dcd2' - '89e95b76-444d-4c62-991a-0facbeda640c' filter1: - ObjectType: 'dnsNode' + ObjectType: + - 'dnsNode' + - 'dnsZoneScope' condition: selection and not 1 of filter* falsepositives: - New Domain Controller computer account, check user SIDs within the value attribute of event 5136 and verify if it's a regular user or DC computer account.