Comodo / Xcitium False Positive & Blacklist Removal

By DrGlenn — USA-based WordPress security specialist· 290+ cleanups across 34 countries· Updated June 22, 2026

Is Comodo / Xcitium flagging your website?

If Comodo / Xcitium is warning visitors about your site — with something like Phishing, Malware/Malicious Website; blocked by Comodo Online Security / Secure DNS; Valkyrie “Malicious” verdict — it means one of two things: your WordPress site really is infected, or it is a false positive left over from a problem that was already fixed. Either way, here is exactly how to get the warning removed.

Step 1 — Confirm it is really a false positive

Before you ask Comodo / Xcitium for a review, make sure the site is actually clean. If you request removal while malware is still present, the flag comes straight back (and some vendors rate-limit repeat requests). Check it two ways:

• Run it through my free Is My Site Hacked? checker for a fast look at injected code, spam and cloaking.
• Cross-check on VirusTotal to see every engine that is flagging you.

If anything turns up, get it fully cleaned first — deleting the visible malware is not enough if a hidden backdoor remains.

Step 2 — Report the false positive to Comodo / Xcitium

Report a website false positive on the Comodo submit form. Submit here: comodo.com/home/internet-security/submit.php

1. Go to the Comodo submit.php false-positive form.
2. Choose the website/URL option and enter your URL, email and comments.
3. Submit; Comodo re-checks and updates its database if clean.
4. For category (not malware) issues, admins use Domain Classification Requests.
5. Post in the Xcitium forum if there is no response.

Good to know: Comodo rebranded enterprise security to Xcitium, but the consumer false-positive form still lives on comodo.com. Category requests are usually actioned within ~48 hours.

Step 3 — If the warning keeps coming back

A warning that returns after you have been delisted almost always means the infection was never fully removed — usually a backdoor in a theme file, a rogue admin user, or malware stored in the database. That is exactly what I fix. I am a USA-based WordPress security specialist: I remove the infection completely, submit the delisting on your behalf, and harden the site so it stays clean.

Get my site cleaned · See how it works · read my client reviews.

Frequently asked questions

How long does Comodo / Xcitium take to remove the warning? Once your site is genuinely clean and you have submitted the request, most reviews clear within a few days — see the timing note above. Submitting while still infected only restarts the clock.

It keeps coming back — why? Because the real infection (a backdoor, rogue admin, or database payload) is still there. A full cleanup stops the loop.

More removal guides: Dr.Web, Google Safe Browsing, Norton Safe Web · all vendor guides · full report-link directory.