diff --git a/AnnoyancesFilter/Cookies/sections/cookies_specific.txt b/AnnoyancesFilter/Cookies/sections/cookies_specific.txt
index 0c710b88339..9054ec5c04e 100644
--- a/AnnoyancesFilter/Cookies/sections/cookies_specific.txt
+++ b/AnnoyancesFilter/Cookies/sections/cookies_specific.txt
@@ -9320,7 +9320,7 @@ microcenter.com###PnlPrivacyAlert
 german.cri.cn##body > .js-dialog
 psychcentral.com#$#.no-hash { display: none !important; }
 psychcentral.com#$#body[style^="overflow:"] { overflow: auto !important; }
-dallasinnovates.com,morphio.ai###acceptance
+detector404.com,detector404.by,detector404.kz,detector404.ru,detector404.*,dallasinnovates.com,morphio.ai###acceptance
 guh-group.com##.cookieframe
 guh-group.com##.cookieframe ~ .fancybox-overlay
 cel.ro,domo.ro##.gdprNotice
diff --git a/SpywareFilter/sections/cookies_specific.txt b/SpywareFilter/sections/cookies_specific.txt
index 035249dfe9b..b26afbe1bcd 100644
--- a/SpywareFilter/sections/cookies_specific.txt
+++ b/SpywareFilter/sections/cookies_specific.txt
@@ -6,6 +6,8 @@
 ! Bad:  ||monerominer.rocks^$third-party (should be in adservers.txt)
 !
 !
+! detector404.ru
+||detector404.$cookie=tag
 ! mexc.com
 ||mexc.com^$cookie=sensorsdata2015jssdkcross
 ||mexc.com^$cookie=sajssdk_2015_cross_new_user