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Hi team - I need some help!

I discovered some directories in the IFS that were not there yesterday.

We are using PHP Zend server 7 to provide a web portal for our
application.

Today I found directories in /www/zendphp7/htdocs including

Object Type Owner Size Data
amzn.zip *STMF QTMHHTTP 3145728 Yes
amznbvn *DIR QTMHHTTP 8192 Yes
hehe.php *STMF QTMHHTTP 32768 Yes
hte.php *STMF QTMHHTTP 32768 Yes
subanus *DIR QTMHHTTP 8192 Yes
us.php *STMF QTMHHTTP 16384 Yes
xcbxcb *DIR QTMHHTTP 8192 Yes


on a system.

These are in the directory /www/zendphp7/htdocs/

The authorities are as follows.

Directory /www

*PUBLIC *RWX
QSYS *RWX
QTMHHTTP *RWX

Directory /www/zendphp7
*PUBLIC *EXCLUDE
QTMHHTTP *RWX

Directory /www/zendphp7/htdocs
*PUBLIC *EXCLUDE
QTMHHTTP *RX

I found in the access_log

host-156.210.234.190-static.tedata.net - - [08/Aug/2023:00:05:33 +1000]
"GET //xcbxcb/all_result/FULLZ.HTML HTTP/1.1" 404 196 "-" "Mozilla/5.0
(X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0"
156.210.190.234 - - [08/Aug/2023:00:05:35 +1000] "GET /favicon.ico
HTTP/1.1" 404 196 "
https://xxxxxxxaccounts.xxx.net.au//xcbxcb/all_result/FULLZ.HTML";
"Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/116.0"

156.210.190.234 - - [08/Aug/2023:00:19:18 +1000] "GET
/hte.php?d=2f7777772f7a656e64706870372f6874646f63732f49544d41532f7863627863622
2f616c6c5f726573756c74 HTTP/1.1" 200 3371 "
https://xxxxxxxaccounts.xxx.net.au/hte.php?d=2f7777772f7a656e64706870372f6874646f63732f4954
4d41532f7863627863622f616c6c5f726573756c74" "Mozilla/5.0 (X11; Linux
x86_64; rv:109.0) Gecko/20100101 Firefox/116.0"

And a whole heap more related messages.

I have blocked address 156.210.190.234 in the firewall - but I am sure
this is not a fix.

I have deleted the files and directories that were owned by QTMHHTTP above
but I do not understand how these were installed based on QTMHHTTP not
having Write authority to the htdocs directory ?

I do not know what security changes I should be implementing or where to
get the information on how to implement these changes.

Any suggestions gratefully appreciated.

Thanks

Don


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