Title: Unknown core file: wp-includes/blocks/tag-cloud.php
Last modified: June 14, 2021

---

# Unknown core file: wp-includes/blocks/tag-cloud.php

 *  Resolved [alopezr](https://wordpress.org/support/users/alopezr/)
 * (@alopezr)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/help-868/)
 * Hello, I am seeing some logs that I do not understand much, such as the following,
   I use the version of wordpres 5.0.4, I have downloaded it and the file that shows
   the plugin as suspicious does not appear, I understand that the wp-include folder
   is not modify, then I think it could be a malicious code ??? thanks in advance
   and sorry for my english…
    Severity: enSuspiciousThreatType File: wp-includes/
   blocks/tag-cloud.php File signature: f7be43fc98f7578936d51a63c06fb130 Threat 
   signature: f7be43fc98f7578936d51a63c06fb130 Threat name: Heur.AlienFile.gen Threat:
   Unknown file in core Details: Detected unknown file in core directory`
    -  This topic was modified 4 years, 10 months ago by [Yui](https://wordpress.org/support/users/fierevere/).
      Reason: renamed topic, not informative name

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Moderator [Yui](https://wordpress.org/support/users/fierevere/)
 * (@fierevere)
 * 永子
 * [4 years, 10 months ago](https://wordpress.org/support/topic/help-868/#post-14554173)
 * [https://github.com/WordPress/WordPress/blob/master/wp-includes/blocks/tag-cloud.php](https://github.com/WordPress/WordPress/blob/master/wp-includes/blocks/tag-cloud.php)
 * You can verify file content here
 * It does not present in WordPress 5.0.4 (which is old and you should not be using
   it, even if you are stuck with 5.0.x branch)
    But its indeed present in WP 5.2.
   x and newer
    -  This reply was modified 4 years, 10 months ago by [Yui](https://wordpress.org/support/users/fierevere/).
 *  Plugin Author [quttera](https://wordpress.org/support/users/quttera/)
 * (@quttera)
 * [4 years, 10 months ago](https://wordpress.org/support/topic/help-868/#post-14556027)
 * During the execution of the server side scan, the plug-in check WordPress core
   directories on existence of alien files as well as verify core files integrity
   comparing core files hashes with information retrieved from WordPress API.
 * Every alien file or modified core file reported as suspicious in the scan report.
 * Quttera Team

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Unknown core file: wp-includes/blocks/tag-cloud.php’ is closed to new
replies.

 * ![](https://ps.w.org/quttera-web-malware-scanner/assets/icon-256x256.png?rev=
   2902086)
 * [Quttera ThreatSign – Web Malware Scanner for WordPress](https://wordpress.org/plugins/quttera-web-malware-scanner/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/quttera-web-malware-scanner/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/quttera-web-malware-scanner/)
 * [Active Topics](https://wordpress.org/support/plugin/quttera-web-malware-scanner/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/quttera-web-malware-scanner/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/quttera-web-malware-scanner/reviews/)

 * 2 replies
 * 3 participants
 * Last reply from: [quttera](https://wordpress.org/support/users/quttera/)
 * Last activity: [4 years, 10 months ago](https://wordpress.org/support/topic/help-868/#post-14556027)
 * Status: resolved