Malware scan blank page

I had same problem; turned out to be a lack of memory. My host was killing the process because my site was using too much memory. Decided to move to a VPS and scan ran just fine.

Hi there,

You should be able to check the error logs and find the cause. And, yes, lack of memory or a timeout are the likely causes.

Kind regards,
Eve

I had same problem.
Wordpress v4.7.2 + Sucuri Security v1.8.3
No errors in log.
256M of memory.
PHP max execution time 60 sec
The Malware scan page is blank after 33 second scanning time.
Plugin don’t count these scans.

Hi there,

You can set up to 60 seconds for the Malware scan timeout in Sucuri Security -> Settings -> Scanner

The default is 30 seconds.

Eve

Ok, now I have blank result page after 65 seconds. Have you once more idea?

Are you able to visit https://sitecheck.sucuri.net/ and scan your site?

Status: No Malware Detected by External Scan. Additional Actions Recommended!
Web Trust: Not Currently Blacklisted (10 Blacklists Checked)

System Details:
Running on: nginx/1.10.1
Powered by: PHP/5.6.16

Web application details:
Application: WordPress – https://www.www.remarpro.com

Web application version:
WordPress version: 4.7.3
RevSlider version: 4.3.8
WordPress theme: /wp-content/themes/Terra/
Wordpress internal path: /docs/wp-content/themes/Terra/index.php

In Sucuri Security -> Settings -> API Service you’ll see the ability to test your site’s API communication. Is the connection for sitecheck.sucuri.net failing?

Yes. I see ERROR for sitecheck.sucuri.net url. But this one only.

Both https and http
Both curl and socket

Hello @efess please check with your hosting provider to see if they have any restriction in the server that prevents the plugin to send HTTP requests to SiteCheck. You can also test by yourself by executing this command via SSH (if your hosting provider allows you to use it).

curl "https://sitecheck.sucuri.net/?fromwp=2&json=1&clear=1&scan=johnhackedsite.com" -w "
Connection: %{time_connect} secs
Total Time: %{time_total} secs
DNS Lookup: %{time_namelookup} secs
Download Speed: %{speed_download}
" -o /dev/null -s

Notice that a fresh scan takes several seconds, most websites end up taking +20 secs but I have seen cases where the scanner takes +5 minutes to finish. You will need to consider this during the execution of the scans, the size of the website and the density of the code will significantly affect the performance of the web scanner.

Marking as resolved, feel free to re-open if the issue persists.