The first step in the process of hacking

The first step in the process of hacking

• The first step in the process of hacking

• Discover the services
• Version label
• Operation System

• Send few packets to the host

TCP Packet Header

• TCP Packet Header

Is the host alive ?

• Is the host alive ?

• Method

• Ping
• nmap –sP 192.168.0.1

TCP connect

• TCP connect

• nmap –sT 192.168.0.1

Non-normal TCP operation

• Non-normal TCP operation

• Set the flags FIN,URG,PUSH

• With –sX

Turn off all flags

• Turn off all flags

• With -sN

FTP Bounce

• FTP Bounce

Time-based algorithm

• Time-based algorithm

• Using -T option

Who runs the process (-I)

• Who runs the process (-I)

With –O flag

• With –O flag

Nmap –O 192.168.0.1

• Nmap –O 192.168.0.1

Scanning a Class C subnet

• Scanning a Class C subnet

Port scans in IP section

• Port scans in IP section

Netscantools

• Netscantools

• Superscan

• IPEYE

• WUPS

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