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Added wordpress files md5sum whitelisting

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This commit is contained in:
Marek Knappe
2018-10-23 17:52:10 +10:00
parent f5d8e6a430
commit 3ce01f42ae
2 changed files with 54 additions and 20 deletions
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10
README.md
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@@ -32,6 +32,7 @@ Usage: php scan.php -d <directory>
-t --time Show time of last file change -t --time Show time of last file change
-L --line-number Display matching pattern line number in file -L --line-number Display matching pattern line number in file
-o --output-format Custom defined output format -o --output-format Custom defined output format
-j --wordpress-version Version of wordpress to get md5 signatures
``` ```
Ignore argument could be used multiple times and accept glob style matching ex.: "`cache*`", "`??-cache.php`" or "`/cache`" etc. Ignore argument could be used multiple times and accept glob style matching ex.: "`cache*`", "`??-cache.php`" or "`/cache`" etc.
@@ -70,6 +71,15 @@ Whitelisting
See [whitelist.txt](https://github.com/scr34m/php-malware-scanner/blob/master/whitelist.txt) file for a predefined MD5 hash list. Only the first 32 characters are used, rest of the line ignored so feel free to leave a comment. See [whitelist.txt](https://github.com/scr34m/php-malware-scanner/blob/master/whitelist.txt) file for a predefined MD5 hash list. Only the first 32 characters are used, rest of the line ignored so feel free to leave a comment.
Wordpress md5 sum whitelisting
-------------
You can automatically add md5sum from wordpress core files by specifing version as argument to --wordpress-version or -j.
Example:
```
scan -d . -j 4.9.2
```
That will automatically get md5sums from wordpress api (https://api.wordpress.org/core/checksums/1.0/?version=x.x.x) and add it to whitelist. To check your version simply check wp-includes/version.php file of your wordpress
Tools Tools
----- -----

64
scan.php
View File

@@ -177,12 +177,28 @@ class MalwareScanner
} }
} }
private function addWordpressChecksums($wp_version) {
$apiurl = 'https://api.wordpress.org/core/checksums/1.0/?version=' . $wp_version;
$json = json_decode ( file_get_contents ( $apiurl ) );
$checksums = $json->checksums;
if ($checksums->$wp_version == false) { #no checksum returned
$this->error('Cannot load wordpress checksums from: '.$apiurl);
exit(-1);
}
foreach( $checksums->$wp_version as $file => $checksum ) {
$this->whitelist[] = $checksum;
}
}
//Handles the getopt() function call, sets attributes according to flags. //Handles the getopt() function call, sets attributes according to flags.
//All flag handling stuff should be setup here. //All flag handling stuff should be setup here.
private function parseArgs() private function parseArgs()
{ {
$options = getopt( $options = getopt(
'd:e:i:o:abmcxlhkwnsptL', 'd:e:i:o:abmcxlhkwnsptLj:',
array( array(
'directory:', 'directory:',
'extension:', 'extension:',
@@ -201,7 +217,8 @@ class MalwareScanner
'pattern', 'pattern',
'time', 'time',
'line-number', 'line-number',
'output-format:' 'output-format:',
'wordpress-version:'
) )
); );
@@ -270,10 +287,15 @@ class MalwareScanner
if (isset($options['line-number']) || isset($options['L'])) { if (isset($options['line-number']) || isset($options['L'])) {
$this->setFlagLineNumber(true); $this->setFlagLineNumber(true);
} }
if (isset($options['output-format']) || isset($options['o'])) { if (isset($options['output-format']) || isset($options['o'])) {
$tmp = isset($options['output-format']) ? $options['output-format'] : $options['o']; $tmp = isset($options['output-format']) ? $options['output-format'] : $options['o'];
$this->setOutputFormat(is_array($tmp) ? $tmp : array($tmp)); $this->setOutputFormat(is_array($tmp) ? $tmp : array($tmp));
} }
if (isset($options['wordpress-version']) || isset($options['j'])) {
$tmp = isset($options['wordpress-version']) ? $options['wordpress-version'] : $options['j'];
$this->addWordpressChecksums($tmp);
}
} }
public function setExtensions(array $a) public function setExtensions(array $a)
@@ -646,24 +668,26 @@ class MalwareScanner
private function showHelp() private function showHelp()
{ {
echo 'Usage: php scan.php -d <directory>' . PHP_EOL; echo 'Usage: php scan.php -d <directory>' . PHP_EOL;
echo ' -h --help Show this help message' . PHP_EOL; echo ' -h --help Show this help message' . PHP_EOL;
echo ' -d <directory> --directory Directory for searching' . PHP_EOL; echo ' -d <directory> --directory Directory for searching' . PHP_EOL;
echo ' -e <file extension> --extension File Extension to Scan, can be used multiple times' . PHP_EOL; echo ' -e <file extension> --extension File Extension to Scan, can be used multiple times' . PHP_EOL;
echo ' -i <directory|file> --ignore Directory of file to ignore' . PHP_EOL; echo ' -i <directory|file> --ignore Directory of file to ignore' . PHP_EOL;
echo ' -a --all-output Enables --checksum,--comment,--pattern,--time' . PHP_EOL; echo ' -a --all-output Enables --checksum,--comment,--pattern,--time' . PHP_EOL;
echo ' -b --base64 Scan for base64 encoded PHP keywords' . PHP_EOL; echo ' -b --base64 Scan for base64 encoded PHP keywords' . PHP_EOL;
echo ' -m --checksum Display MD5 Hash/Checksum of file' . PHP_EOL; echo ' -m --checksum Display MD5 Hash/Checksum of file' . PHP_EOL;
echo ' -c --comment Display comments for matched patterns' . PHP_EOL; echo ' -c --comment Display comments for matched patterns' . PHP_EOL;
echo ' -x --extra-check Adds GoogleBot and htaccess to Scan List' . PHP_EOL; echo ' -x --extra-check Adds GoogleBot and htaccess to Scan List' . PHP_EOL;
echo ' -l --follow-symlink Follow symlinked directories' . PHP_EOL; echo ' -l --follow-symlink Follow symlinked directories' . PHP_EOL;
echo ' -k --hide-ok Hide results with \'OK\' status' . PHP_EOL; echo ' -k --hide-ok Hide results with \'OK\' status' . PHP_EOL;
echo ' -w --hide-whitelist Hide results with \'WL\' status' . PHP_EOL; echo ' -w --hide-whitelist Hide results with \'WL\' status' . PHP_EOL;
echo ' -n --no-color Disable color mode' . PHP_EOL; echo ' -n --no-color Disable color mode' . PHP_EOL;
echo ' -s --no-stop Continue scanning file after first hit' . PHP_EOL; echo ' -s --no-stop Continue scanning file after first hit' . PHP_EOL;
echo ' -p --pattern Show Patterns next to the file name' . PHP_EOL; echo ' -p --pattern Show Patterns next to the file name' . PHP_EOL;
echo ' -t --time Show time of last file change' . PHP_EOL; 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 ' -L --line-number Display matching pattern line number in file' . PHP_EOL;
echo ' -o --output-format Custom defined output format' . 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;
} }
} }