**Phase 1: Completed pre-decoding.
       full event: 'May 21 10:24:54 niban useradd[6070]: new group: name=test, gid=5006'
       hostname: 'niban'
       program_name: 'useradd'
       log: 'new group: name=test, gid=5006'

**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.