nc.exe高级技巧应用汇总

0. 写在前面的话
1. Netcat 1.10 for NT - nc11nt.zip,原始英文信息
2. Netcat 1.10 for NT 帮助信息
3. Netcat 1.10 常用的命令格式
4. 管理肉鸡,更改肉鸡设置
5. 下载连接
6. 后记

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0. 写在前面的话
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最近工作比较空闲，老是想着怎么自动telnet肉鸡，自动执行命令。来管理自己的肉鸡。
自己写一个程序。功底是不够的,所以只有看了看nc的帮助信息,虽然只看了个半懂,
但是借助于金山词霸2002版本, 还是明白了一点东西.
我觉的有必要再总结一下.反正主要是满足我自己的需要.

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1. Netcat 1.10 for NT - nc11nt.zip
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Basic Features

* Outbound or inbound connections, TCP or UDP, to or from any ports
* Full DNS forward/reverse checking, with appropriate warnings
* Ability to use any local source port
* Ability to use any locally-configured network source address
* Built-in port-scanning capabilities, with randomizer
* Can read command line arguments from standard inputb
* Slow-send mode, one line every N seconds
* Hex dump of transmitted and received data
* Ability to let another program service established
connections
* Telnet-options responder

New for NT

* Ability to run in the background without a console window
* Ability to restart as a single-threaded server to handle a new
connection
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Some of the features of netcat are:

Outbound or inbound connections, TCP or UDP, to or from any ports
Full DNS forward/reverse checking, with appropriate warnings
Ability to use any local source port
Ability to use any locally-configured network source address
Built-in port-scanning capabilities, with randomizer
Built-in loose source-routing capability
Can read command line arguments from standard input
Slow-send mode, one line every N seconds
Optional ability to let another program service inbound connections

Some of the potential uses of netcat:

Script backends
Scanning ports and inventorying services
Backup handlers
File transfers
Server testing and simulation
Firewall testing
Proxy gatewaying
Network performance testing
Address spoofing tests
Protecting X servers
1001 other uses you`ll likely come up with

Netcat Encryption = Cryptcat

对比win2000微软的telnet.exe和微软的tlntsvr.exe服务,连接的时候就可以看出来了.
1.1 NC.EXE是一个非标准的telnet客户端程序,
1.2 还有一个putty.exe客户端程序,提供四种连接模式
-raw -telnet -rlogin -ssh.

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2. Netcat 1.10 for NT 帮助信息
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C:\WINDOWS\Desktop>nc -h
[v1.10 NT]
connect to somewhere: nc [-options] hostname port[s] [ports] ...
listen for inbound: nc -l -p port [options] [hostname] [port]
options:
-d detach from console, background mode (后台模式)
-e prog inbound program to exec [dangerous!!]
-g gateway source-routing hop point[s], up to 8
-G num source-routing pointer: 4, 8, 12, ...
-h this cruft (本帮助信息)
-i secs delay interval for lines sent, ports scanned (延迟时间)
-l listen mode, for inbound connects (监听模式,等待连接)
-L listen harder, re-listen on socket close (连接关闭后,仍然继续监听)
-n numeric-only IP addresses, no DNS (ip数字模式,非dns解析)
-o file hex dump of traffic (十六进制模式输出文件,三段)
-p port local port number (本地端口)
-r randomize local and remote ports (随机本地远程端口)
-s addr local source address (本地源地址)
-t answer TELNET negotiation
-u UDP mode
-v verbose [use twice to be more verbose] (-vv 更多信息)
-w secs timeout for connects and final net reads
-z zero-I/O mode [used for scanning] (扫描模式,-vv)
port numbers can be individual or ranges: m-n [inclusive]

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3. Netcat 1.10 常用的命令格式
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下面引用 《沉睡不醒 10月15日凌晨》的文章的部分。

3.1.端口的刺探：
nc -vv ip port
RIVER [192.168.0.198] 19190 (?) open //显示是否开放open
3.2.扫描器
nc -vv -w 5 ip port-port port
nc -vv -z ip port-port port
这样扫描会留下大量的痕迹，系统管理员会额外小心

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