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。: w6 M4 i" ]0 n
6 h& `* n! t$ B9 i( x# Z" r% ]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。: J- O1 ~& \, j' o0 J4 S( m
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简单介绍一下这篇文章吧。$ I$ w/ Q: P& {' \4 i: h
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开启WP错误记录功能 $ G+ Q& K* o; s: l2 g只需要修改wp-config.php的如下几行：' p' [- g, C& d
" {2 r* A6 i$ m% p; B@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 S! f+ t8 f* X7 R
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[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\' , {% n7 I o3 |5 R ?' }# ?% M[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--. D5 m+ @8 N% [. T* T4 F/ ^+ X
[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-- 0 p* E5 _# O3 y) ^5 _ l. c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。 ' |9 r1 r# b* ?5 o
SQL盲注扫描 + z' t! W1 a6 h( W) D攻击者使用了类似"waitfor delay"和"benchmark"这样的函数来盲注。+ L# a" t" h( J% P F# h* S
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[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\'--& Q* O4 L4 O8 W
[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) ; L+ C% K) Z8 _Google一下大规模扫描. w: m# }7 [3 }1 i! X$ r* {8 y
8 z8 t: b3 d' q1 Y5 o2 F1 o! c 0 P$ W( S* f5 H4 r5 E V' f5 @ [attach]163[/attach] - O& H. z) O3 l: s2 N $ {0 v: K# S" n( f1 U6 x 8 D) M% D$ `$ y j& {( T/ U% \% g) L' T+ \
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；! J' ]0 h# [. `7 Y