Update 'malware4.pl'

malware4.pl

@@ -82,6 +82,9 @@ my @regexen = (
 	qr/<\?php\s+\$action\=\$\_REQUEST\[\'action\'\]\;\s+\/\/status.+?echo\s+\"File\s+does\s+not\s+exist\"\;\s+\}\s+\?>/is,
     qr/<\?php\s+\$p\s+\=\s+\$\_REQUEST\[\"m\"\]\;\s+eval\(base64\_decode\(\$p\)\)\;\s+\?>/is,
     qr/\/\*edition\:1\.6\*\/.+?\;eval\(gzuncompress\(base64\_decode\(\$([A-z0-9]{1,20})\)\)\)\;/is,
+    qr/<\?php\s+\$([A-z0-9]{1,20})\=.+?\$([A-z0-9]{1,20})\=call\_user\_func\(.+?\)\;\s+\$([A-z0-9]{1,20})\=call\_user\_func\(.+?\)\;\s+eval\(\$([A-z0-9]{1,20})\)\;/is,
+    
+    
 );
 my @base64_decodes = (