CONNECT WITH US
Cyber Security

Cyber Security

100+ Compromised Websites Use Fake Cloudflare Checks to Deliver LunexStealer

The Hacker News logo

Published on

Add as a preferred source on Google
100+ Compromised Websites Use Fake Cloudflare Checks to Deliver LunexStealer

The Computer Emergency Response Team of Ukraine (CERT-UA) has identified more than 100 compromised websites that have been injected with malicious JavaScript to serve an information-stealing malware called LunexStealer (aka Psychedelic Stealer).

The activity, which was observed by the agency in September 2026, has been attributed to a threat cluster dubbed UAC-0277. It did not disclose who the victims of the campaign were or if any systems were successfully compromised as a result of these attacks.

"When visiting such a site, users were shown a forged Cloudflare verification page that, under the pretext of confirming the visitor is human, prompted them to execute a command," CERT-UA said in an advisory. "Executing the command caused a malicious MSI package to be downloaded and installed from a remote server (the ClickFix technique)."

The attacks also make use of the EtherHiding technique to retrieve the domain name of the resource from which the fake verification page is loaded, as well as the script's operating mode, from a smart contract on the Polygon or Ethereum network.

According to CERT-UA, there are three operating modes: 0 – inactive; 1 – passive tracking of visitors that includes gathering data about the website and the page from which the visitor arrived; and 2 – displaying the fake verification page.

In Mode 2, the bogus verification page is shown only to Windows users who arrive at the site from search engine results and not more than twice in 12 hours. These ClickFix lures lead to the distribution of MSI packages that deliver LunexStealer.


Source link
Related Topics:Cyber Security

Disclaimer

We strive to uphold the highest ethical standards in all of our reporting and coverage. We TheMorningPulse.fyi want to be transparent with our readers about any potential conflicts of interest that may arise in our work. It's possible that some of the investors we feature may have connections to other businesses, including competitors or companies we write about. However, we want to assure our readers that this will not have any impact on the integrity or impartiality of our reporting. We are committed to delivering accurate, unbiased news and information to our audience, and we will continue to uphold our ethics and principles in all of our work. Thank you for your trust and support.