- Safety researchers noticed a brand new ClickFix marketing campaign
- The objective is to deploy the Havoc post-exploitation framework
- The framework is hosted on a Microsoft SharePoint account
Hackers have been seen abusing Microsoft SharePoint to distribute the Havoc post-exploitation framework in a brand new ClickFix phishing assault.
Cybersecurity researchers Fortiguard Labs, who’ve been monitoring the marketing campaign since final yr, highlighted how ClickFix is a sort of rip-off we’ve in all probability all encountered no less than as soon as. Cybercriminals would hijack an internet site, and create an overlay that shows a faux error message (for instance: “Your browser is outdated, and to view the contents of the webpage, you have to replace it”). That faux message would immediate the sufferer into motion, which often concludes by downloading and operating malware, or sharing delicate info corresponding to passwords or banking information.
This marketing campaign is analogous, though requires a bit extra exercise from the sufferer’s aspect. The assault chain begins with a phishing e-mail, carrying a “restricted discover” as a .HTML attachment. Operating the attachment shows a faux error that claims “Failed to hook up with OneDrive – replace the DNS cache manually”. The web page additionally has a “Tips on how to repair” button that copies a PowerShell command to the Home windows clipboard, after which shows a message on easy methods to paste and run it.
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Rising risk of ClickFix
Operating this script then runs a second one, hosted on the attackers’ SharePoint server which, in flip, downloads a Python script that deploys the Havoc post-exploitation framework as a .DLL file.
Havoc is a post-exploitation framework designed for superior purple teaming and adversary simulation, offering modular capabilities for stealthy command and management (C2) operations. It presents options like in-memory execution, encrypted communication, and evasion strategies to bypass trendy safety defenses.
ClickFix has gotten insanely in style in these final couple of months. In late October final yr, a brand new malware variant was noticed compromising hundreds of WordPress web sites, putting in a malicious plugin that might serve the ClickFix assault.
Only a few weeks prior, researchers noticed faux damaged Google Meet calls, which was additionally a variant of the ClickFix assault.
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