Sample update

Make it compatible with php 8.1

README.md

@@ -34,7 +34,7 @@ Usage: php scan.php -d <directory>
     -t                   --time               Show time of last file change
     -L                   --line-number        Display matching pattern line number in file
     -o                   --output-format      Custom defined output format
-    -j                   --wordpress-version  Version of wordpress to get md5 signatures
+    -j <version>         --wordpress-version  Version of wordpress to get md5 signatures
                          --combined-whitelist Combined whitelist
                          --custom-whitelist   Loads whitelist from specified file and merge with existing
                          --disable-stats      Disable statistics output

definitions/patterns_iraw.txt

@@ -20,3 +20,44 @@ surfright
 
 # SEO poison, pharmacy redirect
 dealonline.su
+
+# functions escaped as hexadecimal string
+7068705f756e616d65
+70687076657273696f6e
+6368646972
+676574637764
+707265675f73706c6974
+636f7079
+66696c655f6765745f636f6e74656e7473
+6261736536345f6465636f6465
+69735f646972
+6f625f656e645f636c65616e28293b
+756e6c696e6b
+6d6b646972
+63686d6f64
+7363616e646972
+7374725f7265706c616365
+68746d6c7370656369616c6368617273
+7661725f64756d70
+666f70656e
+667772697465
+66636c6f7365
+64617465
+66696c656d74696d65
+737562737472
+737072696e7466
+66696c657065726d73
+746f756368
+66696c655f657869737473
+72656e616d65
+69735f6172726179
+69735f6f626a656374
+737472706f73
+69735f7772697461626c65
+69735f7265616461626c65
+737472746f74696d65
+66696c6573697a65
+726d646972
+6f625f6765745f636c65616e
+7265616466696c65
+617373657274

definitions/patterns_raw.txt

@@ -384,6 +384,11 @@ cGhwOi8vaW5wdXQ=
 # backdoor script
 <font color="red">Upload Gagal..</font><br />
 explode('?>',$shell
+0.33333333333333+0.33333333333333+0.33333333333333
+0.66666666666667+0.66666666666667+0.66666666666667
+1.3333333333333+1.3333333333333+1.3333333333333
+class _t{private static$_
+'LQ'.'=='
 
 # common mobile agent check in SEO poison scripts
 Array("1207", "3gso", "4thp", "501i", "502i", "503i", "504i", "505i", "506i",
@@ -394,3 +399,8 @@ eval(rawurldecode('
 # simple obfuscated function
 'gz'.'unc'.'ompress'
 'create'.'_'.'function'
+'gzinf', 'la', 'te'
+'e_f', 'cti', 'un', 'on', 'cr', 'eat'
+'base', '64_dec', 'ode'
+'cook', 'set', 'ie'
+'repl', 'str_', 'ace'

definitions/patterns_re.txt

@@ -148,3 +148,6 @@ eval\([A-Za-z0-9]{5,}\(\"[A-Z0-9]{16,}
 
 # gzip payload called by variable named function
 \$[a-zA-Z0-9]{6,}\('\x78\x9C\xAD\x90\x41\x0E
+
+# obfuscated code return with error suppression
+return @\$[a-z]{2}\d+\[\d+\]\(\$[a-z]{2}\d+\[\d+\],

scan.php

@@ -622,8 +622,8 @@ class MalwareScanner
     private function report($start, $dir)
     {
         $end = time();
-        echo 'Start time: ' . strftime('%Y-%m-%d %H:%M:%S', $start) . PHP_EOL;
+        echo 'Start time: ' . date('Y-m-d H:m:s', $start) . PHP_EOL;
-        echo 'End time: ' . strftime('%Y-%m-%d %H:%M:%S', $end) . PHP_EOL;
+        echo 'End time: ' . date('Y-m-d H:m:s', $end) . PHP_EOL;
         echo 'Total execution time: ' . ($end - $start) . PHP_EOL;
         echo 'Base directory: ' . $dir . PHP_EOL;
         echo 'Total directories scanned: ' . $this->stat['directories'] . PHP_EOL;
@@ -709,14 +709,14 @@ class MalwareScanner
     //Returns true if the raw string exists in the file contents.
     private function scanFunc_STR(&$pattern, &$content)
     {
-        return strpos($content, $pattern);
+        return strpos($content, (string)$pattern);
     }
 
     //Performs raw string, case insensitive matching.
     //Returns true if the raw string exists in the file contents, ignoring case.
     private function scanFunc_STRI(&$pattern, &$content)
     {
-        return stripos($content, $pattern);
+        return stripos($content, (string)$pattern);
     }
 
     //Performs regular expression matching.
@@ -859,7 +859,7 @@ class MalwareScanner
         echo '    -t                   --time               Show time of last file change' . PHP_EOL;
         echo '    -L                   --line-number        Display matching pattern line number in file' . PHP_EOL;
         echo '    -o                   --output-format      Custom defined output format' . PHP_EOL;
-        echo '    -j                   --wordpress-version  Version of wordpress to get md5 signatures' . PHP_EOL;
+        echo '    -j <version>         --wordpress-version  Version of wordpress to get md5 signatures' . PHP_EOL;
         echo '                         --combined-whitelist Combined whitelist' . PHP_EOL;
         echo '                         --disable-stats      Disable statistics output' . PHP_EOL;