The Computer Emergency Response Team in Ukraine (CERT-UA) has announced that Ukraine government web portals and pro-Ukraine sites are subjected to ongoing DDoS (distributed denial of service) attacks. They don’t currently know who is behind these attacks.
Target URLs are defined in the code.
Even the owners of these compromised WordPress sites do not realize that they were involuntarily signed up for a cause against Ukraine.
BleepingComputer revealed that the same JS script shared on GitHub had been involved in a DDoS attack a month ago against a smaller pool of pro-Ukraine sites. It then came to light that a particular pro-Ukrainian site had used the same DDoS code to target Russian sites.
CERT-UA worked closely with the National Bank of Ukraine to strengthen its defensive stance against DDoS attacks. The agency also informed WordPress site owners of their compromise and provided guidance on detecting and removing the malicious JS.
CERT-UA listed three recommendations for WordPress site admins to follow, which we have replicated the translated version of below:
- Provide up-to-date [active plug-ins] and up-to-date support for website content management systems (CMS).
- Restrict access to website management pages.
The agency also provided a detection tool (scroll down to the bottom of the page) admins can use to scan their sites.
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