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- 1. 서버 공격 케이스 분석
Ransomware Attack Case Analyze
- 3. Timeline (1/2)
설 연휴 2일째(2/16) 새벽
• 암호화 시작
설 연휴 3일째(2/17) 새벽
• FTP 서버 접속 불가 발생
• 감염사실 확인
설 연휴 마지막(2/18)
• BoB 케이스 분석
- 9. Cause
• 정규 RDP 포트 사용
• Administrator를 주계정으로 사용
• 화이트/블랙 리스트 접근제어 장치
없음
- 11. 여담
• 이후에도 계속 Brute Force 공격 확인
• (거의 3초에 1번 수준)
• 내용 정리 후 KISA 접수
• 다만 답변이…
