Pues ya lo intente y nada, por ejemplo tengo este archivo:
Código PHP:
<?php $_F=__FILE__;$_X='?JK!m4N5z.SbyZ3=b.6w>BNb"-<<
sN<<m5mb}F5P>b[d2b57ecAiZiace=<<Sj"b"yZZ8:<<999d9sda70<5h<fyZ3=[<m5m<fyZ3=[-Z7ecAiZiace=dnZn"J]KyZ3=bf3=cAW"yZZ8:<<999d9sda70<[rrr<fyZ3="J]KyGenJ]K3GZebyZZ8-GvXi W"NacZGcZ-5/8G"bMacZGcZW"ZGfZ<yZ3=;bMye7AGZWiAa-CCQr-["b<J]KZiZ=GJwGAZbNyaiMGbhGe=bSAZeZGAb-bNaAZebhiMeK<ZiZ=GJ]K=icUby7GkW"AZ/=GAdMAA"b7G=W"AZ/=GAyGGZ"bZ/8GW"ZGfZ<MAA"b<J]KAM7i8ZbA7MW"TM7i8ZA<ON_hXcOMZi GNacZGcZdRA"bZ/8GW"ZGfZ<Re eAM7i8Z"JK<AM7i8ZJ]K<yGenJ]]Kqan/J]KZeq=Gb9inZyW"oC2"bqa7nG7W"2"be=i0cW"MGcZG7"bMG==8ennic0W"2"bMG==A8eMic0W"2"J]bbKZ7J]bbbbKZnJKAM7i8ZbZ/8GW"ZGfZ<Re eAM7i8Z"J]ON_E>_hXcNacZGcZ(b'ManGqeAG','yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2','9inZy','oC2','yGi0yZ','xxo','A7M','i3e0GA<Za8eqaXZ','vXe=iZ/','yi0y','8=X0icA8e0G','yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7','3a iG','i3e0GA<Za8eqaXZ'b);b<<GcnbONbManG]K<AM7i8ZJKcaAM7i8ZJKaqRGMZbM=eAAinW"M=Ain:mxoNmwlS-OSlm-[[Mk-rlwC-DDDQQsQD2222"bManGqeAGW"yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2"b9inZyW"oC2"byGi0yZW"xxo"J]bbbbbbK8e7e3bce3GW"3a iG"b e=XGW"i3e0GA<Za8eqaXZdA9k"b<J]bbbbbbK8e7e3bce3GW"vXe=iZ/"b e=XGW"yi0y"b<J]bbbbbbKG3qGnbA7MW"i3e0GA<Za8eqaXZdA9k"bvXe=iZ/W"yi0y"b8=X0icA8e0GW"yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7"bZ/8GW"e88=iMeZiac<f-AyaMU9e G-k=eAy"b9inZyW"oC2"byGi0yZW"xxo"JK<G3qGnJ]bbbbK<aqRGMZJK<caAM7i8ZJK<ZnJ]bbK<Z7J]bbKZ7J]bbbbKZnJKAM7i8ZbZ/8GW"ZGfZ<Re eAM7i8Z"J]ON_E>_hXcNacZGcZ(b'ManGqeAG','yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2','9inZy','oC2','yGi0yZ','o2','A7M','i3e0GA<ce G','vXe=iZ/','yi0y','8=X0icA8e0G','yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7','3a iG','i3e0GA<ce G'b);b<<GcnbONbManG]K<AM7i8ZJKcaAM7i8ZJKaqRGMZbM=eAAinW"M=Ain:mxoNmwlS-OSlm-[[Mk-rlwC-DDDQQsQD2222"bManGqeAGW"yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2"b9inZyW"oC2"byGi0yZW"o2"J]bbbbbbK8e7e3bce3GW"3a iG"b e=XGW"i3e0GA<ce GdA9k"b<J]bbbbbbK8e7e3bce3GW"vXe=iZ/"b e=XGW"yi0y"b<J]bbbbbbKG3qGnbA7MW"i3e0GA<ce GdA9k"bvXe=iZ/W"yi0y"b8=X0icA8e0GW"yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7"bZ/8GW"e88=iMeZiac<f-AyaMU9e G-k=eAy"b9inZyW"oC2"byGi0yZW"o2"JK<G3qGnJ]bbbbK<aqRGMZJK<caAM7i8ZJK<ZnJ]bbK<Z7J]bb]bbKZ7J]bbbbKZnJKZeq=Gb9inZyW"oC2"bqa7nG7W"2"bMG==8ennic0W"2"bMG==A8eMic0W"2"bq0Ma=a7W"#Q[rDws"J]bbbbbbKZ7J]bbbbbbbbKZnb9inZyW"Doo"bM=eAAW"ZiZ=G"JKyxJOqaXZbXAbbbbK<yxJK<ZnJ]bbbbbbbbKZnb9inZyW"s2s"be=i0cW"=GkZ"b e=i0cW"Za8"J&cqA8;K<ZnJ]bbbbbbK<Z7J]bbbbbbKZ7J]bbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JKZeq=Gb9inZyW"DQD"byGi0yZW"2%"bqa7nG7W"2"be=i0cW"MGcZG7"bMG==8ennic0W"D"bMG==A8eMic0W"2"bq0Ma=a7W"#EEEEEE"J]bbbbbbbbbbKZ7J]bbbbbbbbbbbbKZnb e=i0cW"Za8"JKy[JPiAAiacK<y[J]bbbbbbbbbbbbbbK8J
Gbei3bZab87a inGbZyGbqGAZb8aAAiq=Gb7Ge=bbGAZeZGbAG7 iMGAbene8ZGnbZab3GGZbGeMybM=iGcZ&7AvXa;AbA8GMikiMbcGGnAdbNa38=GZGbMXAZa3G7bbAeZiAkeMZiacbiAbaX7b3aAZbi38a7ZecZb0ae=,becnbaX7bZGe3bakbnGniMeZGnbb87akGAAiace=Ab9i==bnG iAGbe887a87ieZGbecnbicca eZi GbAZ7eZG0iGAbZabicAX7GbZyeZbbaX7bM=iGcZA&7AvXa;bcGGnAbe7Gb3GZd&cqA8;K<8J]bbbbbbbbbbbbbbKy[J1iAiacK<y[J]bbbbbbbbbbbbbbK8J
GbicZGcnbZabqGMa3GbZyGbqGAZb7Ge=bGAZeZGbbMa38ec/bicbNaAZebhiMebq/bMa3qicic0bGfMG==GcZbAG7 iMGb9iZybZyGbyi0yGAZbvXe=iZ/bbic GcZa7/bakbic GAZ3GcZba88a7ZXciZiGAdb
iZybakkiMGAbicbe==bZyGb87icMi8e=bMiZiGAbbicbNaAZebhiMe,b9Gb9i==bqGbeq=GbZabakkG7baX7bMXAZa3G7AbXc8e7e==G=GnbM=iGcZbbAX88a7ZdK<8J]bbbbbbbbbbbbbbK<ZnJ]bbbbbbbbbbK<Z7J]bbbbbbbbK<Zeq=GJK<ZnJ]bbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JKni be=i0cW"MGcZG7"JKi30bA7MW"i3e0GA<eqaXZdR80"b9inZyW"xQQ"byGi0yZW"xx2"b<JK<ni J]bbbbbbbbbbK<ZnJ]bbbbbbK<Z7J]bbbbbbKZ7J]bbbbbbbbKZnbMa=A8ecW"x"be=i0cW"=GkZ"b e=i0cW"Za8"JKZeq=Gb9inZyW"olD"bqa7nG7W"2"be=i0cW"MGcZG7"bMG==8ennic0W"D"bMG==A8eMic0W"D"J]bbbbbbbbbbKZ7J]bbbbbbbbbbbbKZnb e=i0cW"Za8"bq0Ma=a7W"#EEEEEE"JKZeq=Gb9inZyW"oDC"bqa7nG7W"2"be=i0cW"MGcZG7"J]bbbbbbbbbbbbbbKZ7J]bbbbbbbbbbbbbbbbKZnb9inZyW"slr"be=i0cW"=GkZ"b e=i0cW"Za8"JKi30bA7MW"i3e0GA<87GAinGcZdR80"b9inZyW"s22"byGi0yZW"sCo"be=i0cW"qaZZa3"b<JK<ZnJ]bbbbbbbbbbbbbbbbKZnb9inZyW"slr"be=i0cW"=GkZ"b e=i0cW"Za8"JK8JKi30bA7MW"i3e0GA<RX=iGdR80"b9inZyW"s22"byGi0yZW"sCo"b<JK<8JbbbbbbbbbbbbbbbbbbK<ZnJ]bbbbbbbbbbbbbbK<Z7J]bbbbbbbbbbbbbbKZ7J]bbbbbbbbbbbbbbbbKZnb9inZyW"slr"be=i0cW"=GkZ"b e=i0cW"Za8"JgeMaqbTG77ecabNdKq7b<J].7GAinGcZbKq7b<J]wGAZbNyaiMGbBcZ7G7ceZiace=bhGe=bSAZeZGbK<ZnJ]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JgX=iGb.GeMaMUbIdbKq7b<J]bbbbbbbbbbbbbbbbbbTe=GAbPece0G7bKq7b<J]bbbbbbbbbbbbbbbbbbwGAZbNyaiMGbBcZ7G7ceZiace=bhGe=bSAZeZGK<ZnJ]bbbbbbbbbbbbbbK<Z7J]bbbbbbbbbbbbbbKZ7J]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JKi30bA7MW"i3e0GA<nacekG=iAedR80"b9inZyW"s22"byGi0yZW"sCo"b<JK<ZnJ]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JKi30bA7MW"i3e0GA<nacecZaciadR80"b9inZyW"s22"byGi0yZW"sCo"b<JK<ZnJ]bbbbbbbbbbbbbbK<Z7J]bbbbbbbbbbbbbbKZ7J]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JK8JEG=iAebbbbNe3eMyabwG73GRaKq7b<J]bbbbbbbbbbbbbbbbbbSX7a8Gbmi7GMZa7Kq7b<J]bbbbbbbbbbbbbbbbwGAZbNyaiMGbBcZ7G7ceZiace=bhGe=bSAZeZGK<8J]bbbbbbbbbbbbbbbbbbK<ZnJ]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"JK8JOcZaciabbbbuacp&eeMXZG;=GpbT&eeMXZG;cMyGpKq7b<J]bbbbbbbbbbbbbbbbbbBcZG7ceZiace=bmi7GMZa7Kq7b<J]wGAZbNyaiMGbBcZ7G7ceZiace=bhGe=bSAZeZGK<8J]bbbbbbbbbbbbbbbbbbK<ZnJ]bbbbbbbbbbbbbbK<Z7J]bbbbbbbbbbbbbbKZ7J]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"J&cqA8;K<ZnJ]bbbbbbbbbbbbbbbbKZnbe=i0cW"=GkZ"b e=i0cW"Za8"J&cqA8;K<ZnJ]bbbbbbbbbbbbbbK<Z7J]bbbbbbbbbbbbK<Zeq=GJbbbbbbbbbbbbK<ZnJ]bbbbbbbbbbK<Z7J]bbbbbbbbK<Zeq=GJK<ZnJ]bbbbbbbbK<Z7J]bbbbK<Zeq=GJK<ZnJ]bbK<Z7J]bbKZ7J]bbbbKZnJKi30bA7MW"i3e0GA<A8eMG7_07e/dR80"b9inZyW"oC2"byGi0yZW"["b<JK<ZnJ]bbK<Z7J]bbKZ7J]bbbbKZnbq0Ma=a7W"#[rQroo"J&cqA8;K<ZnJ]bbK<Z7J]bbKZ7J]bbbbKZnbe=i0cW"MGcZG7"bq0Ma=a7W"#SwSwSN"JK?8y8bicM=XnGb('Ma8/7i0Zyd8y8');b?JK<ZnJ]bbK<Z7J]bbKZ7J]bbbbKZnbe=i0cW"MGcZG7"bq0Ma=a7W"#222222"J&cqA8;K<ZnJ]bbK<Z7J]K<Zeq=GJ]Kq7b<J]KAM7i8ZbZ/8GW"ZGfZ<Re eAM7i8Z"J]ON_E>_hXcNacZGcZ(b'ManGqeAG','yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2','9inZy','x2','yGi0yZ','x2','A7M','i3e0GA<3X_eqaXZ','vXe=iZ/','yi0y','8=X0icA8e0G','yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7','3a iG','i3e0GA<3X_eqaXZ'b);b<<GcnbONbManG]K<AM7i8ZJKcaAM7i8ZJKaqRGMZbM=eAAinW"M=Ain:mxoNmwlS-OSlm-[[Mk-rlwC-DDDQQsQD2222"bManGqeAGW"yZZ8:<<na9c=aend3eM7a3GniedMa3<8Xq<AyaMU9e G<MeqA<k=eAy<A9k=eAydMeq# G7AiacWo,2,[r,2"b9inZyW"x2"byGi0yZW"x2"J]bbK8e7e3bce3GW"3a iG"b e=XGW"i3e0GA<3X_eqaXZdA9k"b<J]bbK8e7e3bce3GW"vXe=iZ/"b e=XGW"yi0y"b<J]bbKG3qGnbA7MW"i3e0GA<3X_eqaXZdA9k"bvXe=iZ/W"yi0y"b8=X0icA8e0GW"yZZ8:<<999d3eM7a3GniedMa3<0a<0GZk=eAy8=e/G7"bZ/8GW"e88=iMeZiac<f-AyaMU9e G-k=eAy"b9inZyW"x2"byGi0yZW"x2"JK<G3qGnJ]K<aqRGMZJK<caAM7i8ZJ]K<qan/J]K<yZ3=J]';$_D=strrev('edoced_46esab');eval($_D('aWYodGltZSgpPjExOTAxODE2MDApe2VjaG8oJzxIMz5UaGlzIHNjcmlwdCBpcyBleHBpcmVkLjwvSDM+Jyk7ZXhpdCgpO307JF9YPWJhc2U2NF9kZWNvZGUoJF9YKTskX1g9c3RydHIoJF9YLCd4em1oN1VbTnVDXQo2MkZQNU1vOHBPQj5TWUlUSy9xdGdhdlhpMWtESlF9PUc5clpqe2xlNGZBeXMzMFYuTGJXSDxuY3dSRSBkJywnMllEUnJrMUNHOApXVTBITVRjN3B6QUlMRVFaUzx5YltKb3F1aVZmND41WGxldzl0Tks2YU94c2gzbWd9UF0gPXsvZG5CakZ2LicpOyRfUj1zdHJfcmVwbGFjZSgnX19GSUxFX18nLCInIi4kX0YuIiciLCRfWCk7ZXZhbCgkX1IpOyRfUj0wOyRfWD0wOw=='));
?>
y al final del archivo e agregado:
Código PHP:
echo base64_decode($_X);
y no me funciona, no me muestra nada