title: Visual Basic Command Line Compiler Usage ruletype: Sigma author: Ensar Şamil, @sblmsrsn, @oscd_initiative date: 2020/10/07 description: Detects successful code compilation via Visual Basic Command Line Compiler that utilizes Windows Resource to Object Converter. detection: SELECTION_1: EventID: 1 SELECTION_2: ParentImage: '*\vbc.exe' SELECTION_3: Image: '*\cvtres.exe' condition: (SELECTION_1 and SELECTION_2 and SELECTION_3) falsepositives: - Utilization of this tool should not be seen in enterprise environment id: 7b10f171-7f04-47c7-9fa2-5be43c76e535 level: high logsource: category: process_creation product: windows modified: 2021/11/27 references: - https://lolbas-project.github.io/lolbas/Binaries/Vbc/ status: test tags: - attack.defense_evasion - attack.t1027.004