**Phase 1: Completed pre-decoding. full event: 'Jun 16 09:53:44 niban useradd[5721]: new group: name=test2, gid=12001' hostname: 'niban' program_name: 'useradd' log: 'new group: name=test2, gid=12001' **Phase 2: Completed decoding. No decoder matched. **Phase 3: Completed filtering (rules). Rule id: '5901' Level: '8' Description: 'New group added to the system' **Alert to be generated.