Report password cracking (2)

Nhóm : GVHD: Trần Quốc Dũng Phạm Văn Tính Nguyễn Hải Đăng Nguyễn Hồ Vương Trương Quang Minh

Password Crack ,[object Object],[object Object],[object Object],[object Object],[object Object]

SAM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

System key technology ,[object Object],[object Object],[object Object],[object Object]

System key ,[object Object],[object Object],[object Object],[object Object]

SAM Registry key ,[object Object],[object Object]

SAM on Storage Subsystems ,[object Object],[object Object],[object Object],[object Object]

SAM on Network ,[object Object],[object Object]

II.CƠ CHẾ MÃ HÓA PASSWORD CỦA WINDOWS

MÃ HÓA PASSWORD TRONG WINDOWS ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],LAN Manager-compatible password:

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],LAN Manager-compatible password:

LAN Manager-compatible password:

[object Object],[object Object],[object Object],[object Object],[object Object],LAN Manager-compatible password:

[object Object],[object Object],[object Object],[object Object],Windows Password(NT HASH)

Windows Password(NT HASH) PASSWORD/USER INFORM NT windows Hash

III.XỬ LÝ LOGON TRONG WINDOWS

XỬ LÝ LOGON TRONG WINDOWS LOCAL MACHINE LOGON DOMAIN LOGON

[object Object],[object Object],[object Object],[object Object],XỬ LÝ LOGON TRONG WINDOWS

[object Object],[object Object],[object Object],XỬ LÝ LOGON TRONG WINDOWS

LOCAL MACHINE LOGON process SAM DATAbase TOP HALF BOTTOM HALF M S V 1_0 Packet 1.Encrypt/hash 2.Send 3.Query 4.Send stored hash password User/password 5.compare Reply result

Some LAN Authentication protocols ,[object Object],[object Object],[object Object],[object Object]

NT LAN Manager Authentication ,[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],NT LAN Manager Authentication

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],NT LAN Manager Authentication

[object Object],[object Object],[object Object],[object Object],[object Object],NTLMv1

NTLMv2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

DOMAIN LOGON ,[object Object],[object Object],[object Object],[object Object]

DOMAIN LOGON NetLogon service Bottom HALF SAM TOP HALF NetLogon service Logon Request 1.Send Hashed password 2.Send request 3.nonce 4.Merged password 5.Send m-p query reply 6.result 7.result

Cracking Password ,[object Object],[object Object],[object Object],[object Object]

Dictionary Attacks ,[object Object],[object Object],[object Object]

Hybrid Attacks ,[object Object],[object Object],[object Object],[object Object]

Brute force Attacks ,[object Object],[object Object],[object Object],[object Object]

Tool: Cain ,[object Object],[object Object]

Rainbow Attack ,[object Object],[object Object],[object Object],[object Object],[object Object]

Introduction ,[object Object],[object Object]

Brute force ,[object Object],[object Object],[object Object],[object Object],[object Object]

Time-memory Tradeoff ,[object Object],[object Object],[object Object],[object Object]

Xây dựng RainbowCrack ,[object Object],[object Object],[object Object],[object Object]

Step 1: Use rtgen program to generate rainbow tables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Step 1: Use rtgen program to generate rainbow tables(cont) ,[object Object],[object Object],[object Object]

Step 1: Use rtgen program to generate rainbow tables(cont) ,[object Object],[object Object]

Select Good Parameters ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Commands ,[object Object],[object Object]

Commands(cont) ,[object Object],[object Object],[object Object],[object Object]

Step 2: Use rtsort program to sort rainbow tables ,[object Object],[object Object],[object Object]

Step 3: Use rcrack program to lookup rainbow tables ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Step 3: Use rcrack program to lookup rainbow tables(cont) ,[object Object],[object Object],[object Object],[object Object]

V.DEMO ,[object Object],[object Object],[object Object]

Demo Crack password trong LAN ,[object Object],[object Object],[object Object]

Demo Crack password trong LAN ,[object Object],[object Object]

Demo Crack password trong LAN

Demo : Physical- lấy file SAM ,[object Object],[object Object],[object Object],[object Object]

Demo: Physical- lấy file SAM ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Demo: Physical- lấy file SAM

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Demo: Physical- Phá password

Demo : Sniffer password ,[object Object],[object Object],[object Object],[object Object]

Một số cách hạn chế password cracking. ,[object Object],[object Object]

Làm thế nào để có một mật khẩu bảo mật. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Những khuyến cáo đặt password khác. ,[object Object],[object Object],[object Object],[object Object],[object Object]

Những khuyến cáo đặt password khác (tt). ,[object Object],[object Object],[object Object],[object Object],[object Object]

Report password cracking (2)

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