復制代碼 代碼如下:
dxy:
你好!
我學vbs也有一小段時間了,最近看到一本書上講vbs腳本的加密,就自己試了試,可是有一點問題,低級的語法錯誤我都自己修正了,可腳本運行后不起作用.所以想請教你一下.腳本的原理是這樣的:它把代碼轉換成16進制,然后再寫個解密代碼,通過這個解密來執行加密的代碼,將字符串成16進制的代碼如下:
Function str2hex (Byval strHex)
For i=1 to Len(strHex)
sHex = sHex Hex(Asc(mid(strHex,i,1)))
next
str2Hex = sHex
end Function
解密的代碼如下:
Function hextostr(data)
Hextostr = "Execute"""""
C= "Chr(H"
N= ")"
Do while Len(data)>1
if IsNumeric (Left(data,1)) then
Hextostr=HextostrcLeft(data,2)N
data=mid(data,3)
else
Hextostr=HextoStrCLeft(data,4)N
data=mid(data,5)
end if
loop
end Function
解密代碼好象有點問題,請幫忙指正,我實在找不出
整個成品就是:
on error resume next
set arg=wscript.arguement '聲明外部參數
if arg.count=0 Then wscript.quit '若無參數則退出腳本
set fso=creatobject("Scripting.Filesystem Object") '聲明fso組件
when fso.opentextfile(arg(0),1,flase)
data = readall:.close'讀取文本內容
if err.number>0 then wscript.quit '如果發生錯誤，則退出
with fso.opentextfile(arg(0)"*.vbs",2,true) '將轉換好的寫到一個新的vbs中
if err.number>0 then wscript.quit '如果發生錯誤，則退出
.writeline "Execute(Hextostr("""str2hex(data)"""))" '執行解密并執行解密后的代碼
.writeline "Function hextostr(data)"
.writeline "Hextostr=""Execute"""""""""""
.writeline "C=""CHR(H"""
.writeline "N= )"
.writeline "Do while Len(data)>1"
.writeline "if IsNumeric (Left(data,1)) then"
.writeline "Hextostr=HextostrcLeft(data,2)N"
.writeline "data = (data,3)"
.writeline "else"
.writeline "Hextostr=Hex to strcLeft(data,4)N"
.writeline "data=mid(data,5)"
.writeline "end if"
.writeline "loop"
.writeline "end function"
'把解密函數寫進去
.close '關閉文本
set fso=Nothing'注銷fso組件
end with
msgbox "OK"
'以下是加密函數
Function str2hex (Byval strHex)
For i=1 to Len(strHex)
sHex = sHex Hex(Asc(mid(strHex,i,1)))
next
str2Hex = sHex
end function
'全部代碼就到這了，好長~
書上說,把要加密的vbs腳本拖到這個腳本上就行了,不過我沒有成功,不知道那里有問題,請幫幫我,謝謝~
上面的代碼注意的幾個情況：
1、set arg=wscript.arguements
后門有個s
2、set fso=creatobject("Scripting.Filesystem Object") '聲明fso組件
應該是filesystemboject
3、.writeline "N= )"
對于需要輸出N=")"用vbs輸入"（雙引號）的方法就是用兩個""
.writeline "N="")"""
4、.writeline "data = (data,3)"這里少個mid
基本上就這些了
do.vbs保存為do.vbs ，將要加密的js文件拖到這個文件上就可以
復制代碼 代碼如下:
'on error resume next
set arg=wscript.arguments '聲明外部參數
if arg.count=0 Then wscript.quit '若無參數則退出腳本
set fso=createobject("Scripting.FilesystemObject") '聲明fso組件
filename=wscript.arguments(0)
set readline=fso.opentextfile(filename,1,flase)
data=readline.readall:
readline.close '讀取文本內容
if err.number>0 then wscript.quit '如果發生錯誤，則退出
with fso.opentextfile(filename"_out.vbs",2,true) '將轉換好的寫到一個新的vbs中
if err.number>0 then wscript.quit '如果發生錯誤，則退出
.writeline "Execute(Hextostr("""str2hex(data)"""))" '執行解密并執行解密后的代碼
.writeline "Function hextostr(data)"
.writeline "Hextostr=""Execute"""""""""""
.writeline "C=""CHR(H"""
.writeline "N= "")"""
.writeline "Do while Len(data)>1"
.writeline "if IsNumeric (Left(data,1)) then"
.writeline "Hextostr=HextostrcLeft(data,2)N"
.writeline "data = mid(data,3)"
.writeline "else"
.writeline "Hextostr=HextostrcLeft(data,4)N"
.writeline "data=mid(data,5)"
.writeline "end if"
.writeline "loop"
.writeline "end function"
'把解密函數寫進去
.close '關閉文本
end with
set fso=Nothing'注銷fso組件
msgbox "OK"
'以下是加密函數
Function str2hex (Byval strHex)
For i=1 to Len(strHex)
sHex = sHex Hex(Asc(mid(strHex,i,1)))
next
str2Hex = sHex
end function
