LLMShare Campaign Uses Fake ChatGPT Outage Pages to Deliver Malware

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Summary

The LLMShare campaign uses Google ads and a fake outage notice hosted in a legitimate chatgpt[.]com shared page to direct users to cloaked Windows and macOS installers at openew[.]app. The final payloads are unclear.

Key points

  • Push Security says Google ads direct people searching for ChatGPT to a malicious page shared through a legitimate chatgpt[.]com URL.
  • The page displays a fake outage notice made with custom HTML and CSS, urging visitors to download the desktop app.
  • The download button leads to openew[.]app, a site impersonating OpenAI’s app-download portal that cloaks its content from security platforms.
  • The site offers Windows and macOS installers that researchers say install malware; the final payloads are unknown.
  • BleepingComputer’s test of the Windows installer on Any.Run found commands that check whether the device is a real computer or a virtual machine.
  • Push Security also observed Claude Artifacts used to host ClickFix-style lures that prompt users to execute malicious commands.

Article Details

Event Type
Malvertising and social engineering campaign abusing ChatGPT shared pages to direct users to a fake outage notice and malware-distribution site.
Impact
Users clicking the download button are sent to a cloaked site offering malicious Windows and macOS installers disguised as the ChatGPT desktop app. The final payloads are unknown. A tested Windows installer ran commands to determine whether the device was a real computer or a virtual machine.

Indicators of compromise

TypeIndicatorContext
DOMAINopenew[.]appCloaked fake download site used to impersonate OpenAI’s desktop application portal and deliver malicious installers.

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