New findings reveal a deceptive tactic involving Firefox extensions. These extensions, associated with the name GhostPoster, are being used to hide malware within seemingly innocuous icons.

GhostPoster’s Stealthy Malware Concealment

The GhostPoster Firefox extensions employ a method where malicious code is embedded within graphical icons. This technique allows the malware to remain hidden from users, integrating seamlessly into the browser environment.

By camouflaging malware within icons, the extensions aim to evade detection and maintain persistence on affected systems. This stealthy approach represents a significant threat to users who install such extensions.

Threat to Firefox Users from Malicious Extensions

The discovery of GhostPoster highlights the risks associated with installing unverified browser extensions. Users of Firefox are particularly susceptible to this method of malware delivery.

The concealment of malware in icons demonstrates an evolving strategy by threat actors to bypass security measures. Users are urged to exercise caution and verify the legitimacy of extensions before installation to protect against such threats.

Source: https://www.securityweek.com/ghostposter-firefox-extensions-hide-malware-in-icons/