fixed error

malware4.pl

@@ -135,7 +135,7 @@ my @regexen = (
     qr/error\_reporting\(0\)\;\s+\$query.+?\'Googlebot\'\)\s+\!\=\=\s+false\)\{.+?return\s+\$file\_contents\;\s+\}/is,
     qr/a\:4\:\{s\:1\:.+?RewriteEngine.+?<\/IfModule>\"\;\}/is,
     qr/<\?php.+?if\(isset\(\$\_COOKIE\[.+?array\(.+?implode\(.+?\;\}/is,
-    qr/<\?php\s+\$([A-z0-9]{1,20})\=\'.+?if\(isset\(\$\{\$([A-z0-9]{1,20})\[([0-9]{1,5})\]\.\$.+?\.\$([A-z0-9]{1,20})\[([0-9]{1,5})\]\]\)\;\}\s+\?>/is
+    qr/<\?php\s+\$([A-z0-9]{1,20})\=\'.+?if\(isset\(\$\{\$([A-z0-9]{1,20})\[([0-9]{1,5})\]\.\$.+?\.\$([A-z0-9]{1,20})\[([0-9]{1,5})\]\]\)\;\}\s+\?>/is,
     qr/<\?php.+?str\_ireplace\(\"i\"\,\"\"\,\"iibiasiieii6iii4iiii\_iideicioidieii\"\).+?\?>/is,