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#53 - added new tcpdump and nmap examples

- signed-off-by: trimstray <trimstray@gmail.com>
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trimstray 3 jaren geleden
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      README.md

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@@ -1798,11 +1798,13 @@ ___

##### Tool: [tcpdump](http://www.tcpdump.org/)

###### Filter incoming (on interface) traffic (specific <ip:port>)

```bash
tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
```

* `-n` - don't convert addresses
* `-n` - don't convert addresses (`-nn` will not resolve hostnames or ports)
* `-e` - print the link-level headers
* `-i [iface|any]` - set interface
* `-Q|-D [in|out|inout]` - choose send/receive direction (`-D` - for old tcpdump versions)
@@ -1810,6 +1812,8 @@ tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443
* `[and|or]` - set logic
* `port [1-65535]` - set port number, also `[port not]`

###### Filter incoming (on interface) traffic (specific <ip:port>) and write to a file

```bash
tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
```
@@ -1817,6 +1821,63 @@ tcpdump -ne -i eth0 -Q in host 192.168.252.1 and port 443 -c 5 -w tcpdump.pcap
* `-c [num]` - capture only num number of packets
* `-w [filename]` - write packets to file, `-r [filename]` - reading from file

###### Capture all ICMP packets

```bash
tcpdump -nei eth0 icmp
```

###### Display ASCII text (to parse the output using grep or other)

```bash
tcpdump -i eth0 -A -s0 port 443
```

###### Grab everything between two keywords

```bash
tcpdump -i eth0 port 80 -X | sed -n -e '/username/,/=ldap/ p'
```

###### Grab user and pass ever plain http

```bash
tcpdump -i eth0 port http -l -A | egrep -i 'pass=|pwd=|log=|login=|user=|username=|pw=|passw=|passwd=|password=|pass:|user:|username:|password:|login:|pass |user ' --color=auto --line-buffered -B20
```

###### Extract HTTP User Agent from HTTP request header

```bash
tcpdump -ei eth0 -nn -A -s1500 -l | grep "User-Agent:"
```

###### Capture only HTTP GET and POST packets

```bash
tcpdump -ei eth0 -s 0 -A -vv 'tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x47455420' or 'tcp[((tcp[12:1] & 0xf0) >> 2):4] = 0x504f5354'
```

or simply:

```bash
tcpdump -ei eth0 -s 0 -v -n -l | egrep -i "POST /|GET /|Host:"
```

###### Rotate capture files

```bash
tcpdump -ei eth0 -w /tmp/capture-%H.pcap -G 3600 -C 200
```

* `-G <num>` - pcap will be created every `<num>` seconds
* `-C <size>` - close the current pcap and open a new one if is larger than `<size>`

###### Top hosts by packets

```bash
tcpdump -ei enp0s25 -nnn -t -c 200 | cut -f 1,2,3,4 -d '.' | sort | uniq -c | sort -nr | head -n 20
```

___

##### Tool: [tcpick](http://tcpick.sourceforge.net/)
@@ -1908,6 +1969,90 @@ hping3 -V -c 1000000 -d 120 -S -w 64 -p 80 --flood --rand-source <remote_host>

___

##### Tool: [nmap](https://nmap.org/)

###### Ping scans the network

```bash
nmap -sP 192.168.0.0/24
```

###### Show only open ports

```bash
nmap -F --open 192.168.0.0/24
```

###### Check protocol used (TCP or UDP) for service

```bash
tcpdump -nei eth0 tcp port 22 -vv -X | egrep "TCP|UDP"
```

###### Full TCP port scan using with service version detection

```bash
nmap -p 1-65535 -sV -sS -T4 192.168.0.0/24
```

###### Nmap scan and pass output to Nikto

```bash
nmap -p80,443 192.168.0.0/24 -oG - | nikto.pl -h -
```

###### Recon specific ip:service with Nmap NSE scripts stack

```bash
# Set variables:
_hosts="192.168.250.10"
_ports="80,443"

# Set Nmap NSE scripts stack:
_nmap_nse_scripts="+dns-brute,\
+http-auth-finder,\
+http-chrono,\
+http-cookie-flags,\
+http-cors,\
+http-cross-domain-policy,\
+http-csrf,\
+http-dombased-xss,\
+http-enum,\
+http-errors,\
+http-git,\
+http-grep,\
+http-internal-ip-disclosure,\
+http-jsonp-detection,\
+http-malware-host,\
+http-methods,\
+http-passwd,\
+http-phpself-xss,\
+http-php-version,\
+http-robots.txt,\
+http-sitemap-generator,\
+http-shellshock,\
+http-stored-xss,\
+http-title,\
+http-unsafe-output-escaping,\
+http-useragent-tester,\
+http-vhosts,\
+http-waf-detect,\
+http-waf-fingerprint,\
+http-xssed,\
+traceroute-geolocation.nse,\
+ssl-enum-ciphers,\
+whois-domain,\
+whois-ip"

# Set Nmap NSE script params:
_nmap_nse_scripts_args="dns-brute.domain=${_hosts},http-cross-domain-policy.domain-lookup=true,http-waf-detect.aggro,http-waf-detect.detectBodyChanges,http-waf-fingerprint.intensive=1"

# Perform scan:
nmap --script="$_nmap_nse_scripts" --script-args="$_nmap_nse_scripts_args" -p "$_ports" "$_hosts"
```

___

##### Tool: [netcat](http://netcat.sourceforge.net/)

```bash


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