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F1155265
obscure.php
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Created
Tue, Sep 16, 7:28 AM
Size
5 KB
Mime Type
text/x-php
Expires
Thu, Sep 18, 7:28 AM (1 h, 4 m)
Engine
blob
Format
Raw Data
Handle
744280
Attached To
rINP In-Portal
obscure.php
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#!/usr/local/bin/php
<?php
if
(
isset
(
$argv
[
2
])
&&
$argv
[
2
]
!=
''
)
{
define
(
'SEED'
,
$argv
[
2
]);
}
else
{
define
(
'SEED'
,
rand
(
0
,
100000
));
}
function
gen_name
(
$old
)
{
return
md5
(
$old
.
SEED
);
//return '_n_'.$old;
}
$functions
=
array
();
$php
=
file
(
$argv
[
1
]);
$n
=
1
;
for
(
$x
=
0
;
$x
<
count
(
$php
);
$x
++)
{
$line
=
$php
[
$x
];
if
(
preg_match
(
"/^[ ]*
\/\/
.*?$/"
,
trim
(
$line
))
)
{
//echo "SKIPPING ".$php[$x];
$php
[
$x
]
=
""
;
continue
;
//cut comments
}
if
(
preg_match
(
"/^
\/\*
.*
\*\/
$/"
,
trim
(
$line
))
)
{
//echo "SKIPPING ".$php[$x];
$php
[
$x
]
=
""
;
continue
;
//cut comments
}
if
(
substr
(
$line
,
0
,
10
)==
"function _"
)
{
$dec_parts
=
explode
(
" "
,
$line
,
2
);
$pp
=
explode
(
"("
,
$dec_parts
[
1
]);
$name
=
$pp
[
0
];
$attribs
=
"("
.
$pp
[
1
];
//echo "found func $name attribs: $attribs\n";
$start
=
$x
;
for
(
$f
=
$x
;
$f
<
count
(
$php
);
$f
++)
{
if
(
substr
(
$php
[
$f
],
0
,
1
)==
"}"
)
{
$end
=
$f
;
break
;
}
}
if
(
$start
&&
$end
&&
strlen
(
$name
))
{
$newname
=
"_"
.
gen_name
(
$n
);
$n
++;
$functions
[
$name
]
=
array
(
"start"
=>
$start
,
"end"
=>
$end
,
"attribs"
=>
$attribs
,
"newname"
=>
$newname
);
}
}
}
// print_r($functions);
//echo "<PRE>"; print_r($functions); echo "</PRE>";
function
GetVarName
(
$s
)
{
$alphabet
=
"abcdefghijklmnopqrstuvwxyz_ABCDEFGHIJKLMNOPQRSTUVWXYZ"
;
$name
=
""
;
$var_end
=
0
;
$char
=
substr
(
$s
,
$var_end
,
1
);
if
(
substr
(
$s
,
0
,
1
)==
"$"
)
{
$var_end
++;
$char
=
substr
(
$s
,
$var_end
,
1
);
}
while
(
is_numeric
(
strpos
(
$alphabet
,
$char
))
&&
strlen
(
$char
))
{
$name
.=
$char
;
$var_end
++;
$char
=
substr
(
$s
,
$var_end
,
1
);
}
return
$name
;
}
function
obscure_func
(
$NewName
,
$Attribs
,
$code
)
{
global
$functions
;
$globals
=
array
();
$globals
[]
=
'$this'
;
$globals
[]
=
'$_GET'
;
$globals
[]
=
'$_FILES'
;
$globals
[]
=
'$_POST'
;
$globals
[]
=
'$_COOKIE'
;
$globals
[]
=
'$_SERVER'
;
$variables
=
array
();
$new_code
=
array
();
for
(
$x
=
0
;
$x
<=
count
(
$code
);
$x
++)
{
$line
=
$code
[
$x
];
$line
=
ltrim
(
$line
);
$line
=
str_replace
(
"
\t
"
,
""
,
$line
);
$g
=
strpos
(
$line
,
"global"
);
if
(
is_numeric
(
$g
))
{
$vars
=
trim
(
substr
(
$line
,
$g
+
7
));
$vars
=
substr
(
$vars
,
0
,-
1
);
$v
=
explode
(
","
,
$vars
);
for
(
$z
=
0
;
$z
<
count
(
$v
);
$z
++)
$globals
[]
=
ltrim
(
$v
[
$z
]);
}
$new_code
[
$x
]
=
$line
;
}
$code
=
$new_code
;
for
(
$x
=
0
;
$x
<
count
(
$code
);
$x
++)
{
foreach
(
$functions
as
$name
=>
$attr
)
{
$line
=
$code
[
$x
];
$code
[
$x
]
=
str_replace
(
$name
,
$attr
[
"newname"
],
$line
);
}
}
$VarCount
=
0
;
if
(
strlen
(
$Attribs
)>
3
)
{
$Attribs
=
trim
(
$Attribs
);
$Attribs
=
str_replace
(
"
\t
"
,
""
,
$Attribs
);
//echo "getting attribs from $Attribs\n";
$a
=
explode
(
","
,
substr
(
$Attribs
,
1
,-
1
));
// echo "got attribs for func [$Attribs]:\n";
// var_dump($a);
if
(
is_array
(
$a
)
&&
$a
[
0
]
!=
''
)
{
foreach
(
$a
as
$attr
)
{
list
(
$attr
,
$default
)
=
explode
(
'='
,
$attr
);
//echo "attr: $attr / def = $default\n";
if
(
$default
!=
''
)
{
$defaults
[
$attr
]
=
$default
;
//echo "stored defaults for $attr\n";
}
$variables
[
$attr
]
=
'$_'
.
gen_name
(
$VarCount
++);
}
}
}
for
(
$x
=
0
;
$x
<
count
(
$code
);
$x
++)
{
$line
=
$code
[
$x
];
if
(!
strlen
(
$line
))
continue
;
$p
=
strpos
(
$line
,
"$"
);
while
(
$p
>
0
)
{
if
(
substr
(
$line
,
$p
,
2
)!=
"$$"
)
{
$name
=
GetVarName
(
substr
(
$line
,
$p
));
if
(
strlen
(
$name
))
{
$name
=
"$"
.
trim
(
$name
);
if
(!
in_array
(
$name
,
$globals
)
&&
!
array_key_exists
(
$name
,
$variables
))
$variables
[
$name
]
=
'$_'
.
gen_name
(
$VarCount
++);
}
}
$p
=
strpos
(
$line
,
"$"
,
$p
+
1
);
}
}
for
(
$x
=
0
;
$x
<
count
(
$code
);
$x
++)
{
// print_r($variables);
foreach
(
$variables
as
$v
=>
$varname
)
{
//echo "strpos ".$code[$x].', '.$v."\n";
$p
=
strpos
(
$code
[
$x
],
$v
);
while
(
is_numeric
(
$p
))
{
$t
=
GetVarName
(
substr
(
$code
[
$x
],
$p
));
if
(
'$'
.
$t
==
$v
)
{
$code
[
$x
]
=
substr_replace
(
$code
[
$x
],
$varname
,
$p
,
strlen
(
$t
)+
1
);
}
$p
=
strpos
(
$code
[
$x
],
$v
,
$p
+
1
);
}
}
}
$o
=
"function $NewName"
.
"("
;
if
(
is_array
(
$a
))
{
foreach
(
$a
as
$attr
)
{
list
(
$attr
,
$default
)
=
explode
(
'='
,
$attr
);
$av
[]
=
(
$variables
[
$attr
].(
isset
(
$defaults
[
$attr
])
?
'='
.
$defaults
[
$attr
]
:
''
));
}
}
if
(
count
(
$av
)>
0
)
$o
.=
implode
(
","
,
$av
);
$o
.=
")"
;
//echo "reversed: $o\n";
$o
.=
implode
(
" "
,
$code
);
//$o = str_replace("\n","",$o);
return
$o
;
}
$out
=
""
;
$outline
=
0
;
$shuffled
=
array_rand
(
$functions
,
count
(
$functions
));
// print_r($shuffled);
foreach
(
$shuffled
as
$name
)
{
$pos
=
$functions
[
$name
];
//foreach($functions as $name =>$pos)
//{
$dest
=
$pos
[
"start"
];
$newname
=
$pos
[
"newname"
];
if
(!
$outline
)
$outline
=
$dest
;
unset
(
$code
);
for
(
$x
=
$dest
+
1
;
$x
<=
$pos
[
"end"
];
$x
++)
{
$code
[]
=
$php
[
$x
];
}
$newcode
=
obscure_func
(
$newname
,
$pos
[
"attribs"
],
$code
);
$out
.=
$newcode
;
}
foreach
(
$functions
as
$name
=>
$pos
)
{
for
(
$x
=
$pos
[
"start"
];
$x
<=
$pos
[
"end"
];
$x
++)
{
$php
[
$x
]
=
""
;
}
}
$code
=
array
();
for
(
$x
=
0
;
$x
<
count
(
$php
);
$x
++)
{
$line
=
$php
[
$x
];
foreach
(
$functions
as
$name
=>
$attr
)
{
$line
=
str_replace
(
$name
,
$attr
[
"newname"
],
$line
);
}
$code
[
$x
]
=
$line
;
}
$php
=
$code
;
$line
=
1
;
$tmp_file
=
fopen
(
$argv
[
1
].
'_'
,
'w'
);
for
(
$x
=
0
;
$x
<
count
(
$php
);
$x
++)
{
if
(
$x
==
$outline
)
{
//echo "$line: ".$out;
fwrite
(
$tmp_file
,
$out
);
}
if
(
strlen
(
$php
[
$x
]))
{
//echo "$line: ".ltrim($php[$x]);
fwrite
(
$tmp_file
,
ltrim
(
$php
[
$x
]));
}
$line
++;
}
fclose
(
$tmp_file
);
rename
(
$argv
[
1
].
'_'
,
$argv
[
1
]);
?>
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