title: Possible Shim Database Persistence via sdbinst.exe author: Markus Neis date: 2019/01/16 description: Detects installation of a new shim using sdbinst.exe. A shim can be used to load malicious DLLs into applications. detection: SELECTION_1: EventID: 1 SELECTION_2: Image: '*\sdbinst.exe' SELECTION_3: CommandLine: '*.sdb*' SELECTION_4: CommandLine: - '*iisexpressshim.sdb*' condition: (SELECTION_1 and (SELECTION_2 and SELECTION_3) and not (SELECTION_4)) falsepositives: - Unknown id: 517490a7-115a-48c6-8862-1a481504d5a8 level: high logsource: category: process_creation product: windows modified: 2021/08/14 references: - https://www.fireeye.com/blog/threat-research/2017/05/fin7-shim-databases-persistence.html status: experimental tags: - attack.persistence - attack.privilege_escalation - attack.t1546.011 - attack.t1138 ruletype: SIGMA