最近，在使用Kali的时候，发现在终端中输入msfpayload时，出现错误“bash: msfpayload: command not found”。网上找了一下，原来是从2015年6月8日之后，msfpayload已经被移除了。以后只要使用msfvenom就行了，它集成了msfpayload和msfencode的功能，而且超级方便噢。
msfvenom的大概使用说明如下：
MsfVenom - a Metasploit standalone payload generator.Also a replacement for msfpayload and msfencode.Usage: /opt/metasploit/apps/pro/msf3/msfvenom [options] <var=val>Options:-p, --payload <payload> Payload to use. Specify a '-' or stdin to use custom payloads--payload-options List the payload's standard options-l, --list [type] List a module type. Options are: payloads, encoders, nops, all-n, --nopsled <length> Prepend a nopsled of [length] size on to the payload-f, --format <format> Output format (use --help-formats for a list)--help-formats List available formats-e, --encoder <encoder> The encoder to use-a, --arch <arch> The architecture to use--platform <platform> The platform of the payload-s, --space <length> The maximum size of the resulting payload--encoder-space <length> The maximum size of the encoded payload (defaults to the -s value)-b, --bad-chars <list> The list of characters to avoid example: 'x00xff'-i, --iterations <count> The number of times to encode the payload-c, --add-code <path> Specify an additional win32 shellcode file to include-x, --template <path> Specify a custom executable file to use as a template-k, --keep Preserve the template behavior and inject the payload as a new thread-o, --out <path> Save the payload-v, --var-name <name> Specify a custom variable name to use for certain output formats--smallest Generate the smallest possible payload-h, --help Show this message