win32 汇编打造 wget 体积3kb

Demo

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Code

.386
.MODEL flat, stdcall
OPTION CASEMAP:NONE
Include windows.inc
include kernel32.inc
include user32.inc
Include masm32.inc
Include shell32.inc
Include Comctl32.inc
Include oleaut32.inc
Include macros.asm
includelib kernel32.lib
includelib user32.lib
IncludeLib masm32.lib
IncludeLib shell32.lib
include  masm32rt.inc
include  urlmon.inc
includelib  urlmon.lib
 
.data
 
  HelloMsg               DB "[*] WgetEx 1.0 By Yaseng ", 0
  szDownInfo             DB '[+] start ownload url:%s file:%s',00Ah, 00Dh,0
 
.code
Start:
call main
invoke ExitProcess, 0    
 
main proc
 
    LOCAL szUrl[260]:BYTE
    LOCAL szFileName[260]:BYTE
    LOCAL buffer[260]:BYTE
    print SADD("[*] WgetEx 1.0 By Yaseng ",13,10)
    sub eax,eax
    invoke GetCL,1,ADDR szUrl
    .if eax != 1
       print SADD("[-] url parameter is missing",13,10)
       call  help
       ret
    .endif
    invoke GetCL,2,ADDR szFileName
    .if eax != 1
       print SADD("[-] file parameter is missing",13,10)
       call  help
       ret
    .endif
 
      invoke    wsprintf,addr buffer,addr szDownInfo,addr szUrl,addr szFileName
      invoke StdOut,addr buffer
      invoke URLDownloadToFile,0,addr szUrl,addr szFileName,0,0
      invoke exist,ADDR szFileName
      .if eax != 1
         print SADD("[-] download av failed  !!! ",13,10)
      .else
         print SADD("[+] download av succeed !!! ",13,10)
      .endif
    ret
main endp
 
help  proc
 
    print SADD("[*] WgetEx :Thunderbolt Download program",13,10)
    print SADD("[*] Usage  :WgetEx http://yaseng.me/av.rmvb  av.rmvb",13,10)
 
    ret
 
help endp
 
End Start

 Donwload

https://github.com/yaseng/pentest/tree/master/project/wgetex