这篇文章介绍了当WordPress开启错误记录以后，根据error_log来发现SQL注入攻击的思路。 3 E3 @& ?7 R3 x1 S- v6 X3 o7 P, D0 g; J+ E* \1 b
吸引Cocoa的是这个博客其实是TrustWave公司下属的一个叫Spiderlab团队的官方博客，貌似比较有意思。例如它提到了Honeypot Alert这个标签里的文章都是分析他们一个Web蜜罐的Apache access_log日志的。& E) U" z# [. K O
# Y/ f* c0 a8 T- D$ G! n, J
简单介绍一下这篇文章吧。9 G' p' r" w& @2 X5 O8 n- i4 ]
6 d$ G6 z Q7 i8 p开启WP错误记录功能 - H" Z9 `' {" N- I& |. e& S5 l0 L* k只需要修改wp-config.php的如下几行： " l; L0 _1 I( k, p( e y! ?0 H$ q " W7 D1 L' |7 D: f# }, I' A@ini_set('log_errors','On'); @ini_set('display_errors','Off'); @ini_set('error_log','/home/example.com/logs/php_error.log');SQL 注入扫描" W: G T' [% L W/ E! `6 W
, Y5 A( [% \$ g9 e! u9 F. z
[07-Dec-2012 02:40:49] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1\'' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1\' ) F" {$ L0 J4 q# ~[07-Dec-2012 02:40:50] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536--' at line 1 for query SELECT text, author_id, date FROM WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536-- 4 r. o/ |) n: Q; T; z7 X z" O[07-Dec-2012 02:40:53] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536,0x313032353438303035' at line 1 for query SELECT text, author_id, date FROM WHERE id = 999999.9 UNION ALL SELECT 0x31303235343830303536,0x31303235343830303536--- W3 k+ h. Y% \ F2 E6 [% k
上面的日志就是在暴力猜解表的列数，那个巨大的十六进制值会被解析成null。 % K1 u4 e7 p: j6 C4 d# JSQL盲注扫描 $ Y( s3 x% i2 {& l. J" b7 I/ V攻击者使用了类似"waitfor delay"和"benchmark"这样的函数来盲注。, ~% Y' x! ?5 \" u
& b5 ~6 x: V$ ?5 F o% y* }
[07-Dec-2012 02:43:21] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1; if (1=1) waitfor delay \'00:00:05\'--' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1; if (1=1) waitfor delay \'00:00:05\'-- 6 K6 }7 Y/ j3 h" W' c[07-Dec-2012 02:43:27] WordPress database error You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE id = -1 and if(1=1,BENCHMARK(8623333,MD5(0x41)),0)' at line 1 for query SELECT text, author_id, date FROM WHERE id = -1 and if(1=1,BENCHMARK(8623333,MD5(0x41)),0)& h P% f: {& v# x1 H
Google一下大规模扫描. e& X L9 Y6 N! |' m) V y
8 d% c) ?; _2 b3 S, ]
5 q* Q- C1 J( ~) O
[attach]163[/attach]- p8 I6 Z+ P N( F$ K
( Q6 X0 @0 n5 ~5 S0 y $ @! _+ x; Z ?* v4 M! _! W3 e+ {" }% s7 ~ B
僵尸网络控制着可能使用被感染主机来识别潜在的目标。下面是该公司的蜜罐捕获到的一个RFI（远程文件包含）攻击代码里的片段：
sub google() { my @list; my $key = $_[0]; for (my $i=0; $i<=400; $i+=10){ my $search = ("http://www.google.com/search?q=".&key($key)."&num=100&filter=0&start=".$i); my $res = &search_engine_query($search); while ($res =~ m/<a href="\"?http:\/\/([^">\"]*)\//g) { if ($1 !~ /google/){ my $link = $1; my @grep = &links($link); push(@list,@grep); } } } return @list； * k# T! R, O' ^2 d; i
/ Q q/ r" d7 b# k, k! nCocoa总结：文章比较简单，但是从日志来检测攻击貌似是目前流行的一个方向。: V7 Q, @5 M4 U ~