.htaccess 被木馬竄改後，網頁被轉頁

今天有網站站長反應，當使用電腦瀏覽網站都沒問題，
但是透過手機就會被轉去色情網站。

先經我們了解，該站是使用套裝軟體架設，
但已經兩年沒更新過主程式，我們建議他得進行更新，
並先幫他排除這個狀況。

如何開始解決?

我們經常會介紹容易取得的網站工具，去查看網站的問題，
比方說，使用瀏覽器自帶的小工具。

1.當我們查看過網頁頁面的狀況後，確認相關的php程式，
並未被寫入轉址的語法，接著就是查看 .htaccess 檔，
是否有被竄改過。

2.接著在 .htaccess 發現下列異常內容:

RewriteEngine on
RewriteCond %{HTTP_USER_AGENT} acs [NC,OR]
RewriteCond %{HTTP_USER_AGENT} alav [NC,OR]
RewriteCond %{HTTP_USER_AGENT} alca [NC,OR]
RewriteCond %{HTTP_USER_AGENT} amoi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} audi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} aste [NC,OR]
RewriteCond %{HTTP_USER_AGENT} avan [NC,OR]
RewriteCond %{HTTP_USER_AGENT} benq [NC,OR]
RewriteCond %{HTTP_USER_AGENT} bird [NC,OR]
RewriteCond %{HTTP_USER_AGENT} blac [NC,OR]
RewriteCond %{HTTP_USER_AGENT} blaz [NC,OR]
RewriteCond %{HTTP_USER_AGENT} brew [NC,OR]
RewriteCond %{HTTP_USER_AGENT} cell [NC,OR]
RewriteCond %{HTTP_USER_AGENT} cldc [NC,OR]
RewriteCond %{HTTP_USER_AGENT} cmd- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} dang [NC,OR]
RewriteCond %{HTTP_USER_AGENT} doco [NC,OR]
RewriteCond %{HTTP_USER_AGENT} eric [NC,OR]
RewriteCond %{HTTP_USER_AGENT} hipt [NC,OR]
RewriteCond %{HTTP_USER_AGENT} inno [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ipaq [NC,OR]
RewriteCond %{HTTP_USER_AGENT} java [NC,OR]
RewriteCond %{HTTP_USER_AGENT} jigs [NC,OR]
RewriteCond %{HTTP_USER_AGENT} kddi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} keji [NC,OR]
RewriteCond %{HTTP_USER_AGENT} leno [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lg-c [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lg-d [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lg-g [NC,OR]
RewriteCond %{HTTP_USER_AGENT} lge- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} maui [NC,OR]
RewriteCond %{HTTP_USER_AGENT} maxo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} midp [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mits [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mmef [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mobi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mot- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} moto [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mwbp [NC,OR]
RewriteCond %{HTTP_USER_AGENT} nec- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} newt [NC,OR]
RewriteCond %{HTTP_USER_AGENT} noki [NC,OR]
RewriteCond %{HTTP_USER_AGENT} opwv [NC,OR]
RewriteCond %{HTTP_USER_AGENT} palm [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pana [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pant [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pdxg [NC,OR]
RewriteCond %{HTTP_USER_AGENT} phil [NC,OR]
RewriteCond %{HTTP_USER_AGENT} play [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pluc [NC,OR]
RewriteCond %{HTTP_USER_AGENT} port [NC,OR]
RewriteCond %{HTTP_USER_AGENT} prox [NC,OR]
RewriteCond %{HTTP_USER_AGENT} qtek [NC,OR]
RewriteCond %{HTTP_USER_AGENT} qwap [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sage [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sams [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sany [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sch- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sec- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} send [NC,OR]
RewriteCond %{HTTP_USER_AGENT} seri [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sgh- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} shar [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sie- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} siem [NC,OR]
RewriteCond %{HTTP_USER_AGENT} smal [NC,OR]
RewriteCond %{HTTP_USER_AGENT} smar [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sony [NC,OR]
RewriteCond %{HTTP_USER_AGENT} sph- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} symb [NC,OR]
RewriteCond %{HTTP_USER_AGENT} t-mo [NC,OR]
RewriteCond %{HTTP_USER_AGENT} teli [NC,OR]
RewriteCond %{HTTP_USER_AGENT} tim- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} tosh [NC,OR]
RewriteCond %{HTTP_USER_AGENT} tsm- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} upg1 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} upsi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} vk-v [NC,OR]
RewriteCond %{HTTP_USER_AGENT} voda [NC,OR]
RewriteCond %{HTTP_USER_AGENT} w3cs [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wap- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wapa [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wapi [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wapp [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wapr [NC,OR]
RewriteCond %{HTTP_USER_AGENT} webc [NC,OR]
RewriteCond %{HTTP_USER_AGENT} winw [NC,OR]
RewriteCond %{HTTP_USER_AGENT} winw [NC,OR]
RewriteCond %{HTTP_USER_AGENT} xda [NC,OR]
RewriteCond %{HTTP_USER_AGENT} xda- [NC,OR]
RewriteCond %{HTTP_USER_AGENT} up.browser [NC,OR]
RewriteCond %{HTTP_USER_AGENT} up.link [NC,OR]
RewriteCond %{HTTP_USER_AGENT} windows.ce [NC,OR]
RewriteCond %{HTTP_USER_AGENT} iemobile [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mini [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mmp [NC,OR]
RewriteCond %{HTTP_USER_AGENT} symbian [NC,OR]
RewriteCond %{HTTP_USER_AGENT} midp [NC,OR]
RewriteCond %{HTTP_USER_AGENT} wap [NC,OR]
RewriteCond %{HTTP_USER_AGENT} phone [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pocket [NC,OR]
RewriteCond %{HTTP_USER_AGENT} mobile [NC,OR]
RewriteCond %{HTTP_USER_AGENT} android [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Android [NC,OR]
RewriteCond %{HTTP_USER_AGENT} pda [NC,OR]
RewriteCond %{HTTP_USER_AGENT} PPC [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Series60 [NC,OR]
RewriteCond %{HTTP_USER_AGENT} Opera.Mini [NC,OR]
RewriteCond %{HTTP_USER_AGENT} ipad [NC,OR]
RewriteCond %{HTTP_USER_AGENT} iphone [NC,OR]
RewriteCond %{HTTP_USER_AGENT} iPad [NC,OR]
RewriteCond %{HTTP_USER_AGENT} iPhone [NC,OR]
RewriteCond %{HTTP_ACCEPT} "text/vnd.wap.wml|application/vnd.wap.xhtml+xml" [NC,OR]
RewriteCond %{HTTP_USER_AGENT} !windows.nt [NC]
RewriteCond %{HTTP_USER_AGENT} !bsd [NC]
RewriteCond %{HTTP_USER_AGENT} !x11 [NC]
RewriteCond %{HTTP_USER_AGENT} !unix [NC]
RewriteCond %{HTTP_USER_AGENT} !macos [NC]
RewriteCond %{HTTP_USER_AGENT} !macintosh [NC]
RewriteCond %{HTTP_USER_AGENT} !playstation [NC]
RewriteCond %{HTTP_USER_AGENT} !google [NC]
RewriteCond %{HTTP_USER_AGENT} !yandex [NC]
RewriteCond %{HTTP_USER_AGENT} !bot [NC]
RewriteCond %{HTTP_USER_AGENT} !libwww [NC]
RewriteCond %{HTTP_USER_AGENT} !msn [NC]
RewriteCond %{HTTP_USER_AGENT} !america [NC]
RewriteCond %{HTTP_USER_AGENT} !avant [NC]
RewriteCond %{HTTP_USER_AGENT} !download [NC]
RewriteCond %{HTTP_USER_AGENT} !fdm [NC]
RewriteCond %{HTTP_USER_AGENT} !maui [NC]
RewriteCond %{HTTP_USER_AGENT} !webmoney [NC]
RewriteCond %{HTTP_USER_AGENT} !windows-media-player [NC]

RewriteRule ^(.*)$ http://被轉出去的網址 [L,R=302]
## Can be commented out if causes errors, see notes above.
Options +FollowSymLinks

3.這個內容是指，只要是被設置的 user agent，
就會被轉去特定的轉址，經我們刪除後，
手機轉址問題就解決了。

補充說明:

4.每種作業系統，都會有相關的瀏覽器，每個瀏覽器都會搭配相當的
user agent，以供辨識使用，這個也常用於網站有pc版跟手機版的使用，
可將手機訪客，轉去對手機瀏覽友善的版面。

5.另外使用我們的虛擬主機，如果ftp找不到 .htaccess 的修改，
就要改用winscp，使用scp模式，接著使用 ssh port，在配合
ftp帳號和密碼，就可以登入編輯該檔。

 

最後一定要回頭將程式漏洞修補起來，
否則很可能過幾天，駭客就又會經由漏洞竄改。

延伸閱讀:整理網站被駭的處理

 

(本篇教學由unethost.com客服撰寫)

延伸閱讀:如何備份Cpanel後台安裝的套裝程式?

安裝上述的軟體，我們提供虛擬主機試用，七天滿意保證，
功能完整使用不受限制，歡迎點我申請。