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Ghostposter

All articles tagged with #ghostposter

GhostPoster exposed: 17 malicious browser extensions you must delete now
technology1 month ago

GhostPoster exposed: 17 malicious browser extensions you must delete now

Researchers identified 17 Chrome, Firefox, and Edge extensions linked to the GhostPoster campaign. The malware-monitored extensions hide a multi-stage payload that weakens browser protections, opens a backdoor for remote code execution, can hijack traffic and inject tracking scripts, and has reportedly remained active for years before being removed. If you already downloaded any of these extensions, delete them immediately.

GhostPoster Malware Hits 17 Browser Extensions Across Chrome, Firefox, and Edge
technology1 month ago

GhostPoster Malware Hits 17 Browser Extensions Across Chrome, Firefox, and Edge

Researchers warn of the GhostPoster campaign, which distributed 17 malicious browser extensions across Chrome, Firefox, and Edge to monitor activity and hijack affiliate traffic. The extensions load a remote payload via a logo-based loader, and together they have thousands to hundreds of thousands of installs (over 840k in total). Although these extensions can no longer be installed in major browsers, anyone who still has them should delete them immediately, as they can inject scripts, strip HTTP headers, bypass CAPTCHA, and enable click fraud; the campaign appears to have started as early as 2020.

technology1 month ago

GhostPoster malware infiltrates 840,000 users via trusted-looking extensions

Security researchers warn that 22 malicious browser extensions, hiding GhostPoster malware in their logos, have infected over 840,000 users across Chrome, Firefox and Edge since 2020. The extensions spy on activity, inject backdoor scripts, and redirect to fraudulent sites, with potential to install more malware. Mozilla and Microsoft removed the extensions, but affected users must uninstall them manually to stop further damage.

GhostPoster Malware Infects Over 50,000 Firefox Users via Malicious Add-on Icons
security2 months ago

GhostPoster Malware Infects Over 50,000 Firefox Users via Malicious Add-on Icons

A campaign named GhostPoster has compromised 17 Firefox add-ons, embedding malicious JavaScript to hijack affiliate links, inject tracking, and facilitate ad fraud, affecting over 50,000 downloads. The malware employs sophisticated evasion techniques, including delayed activation and random payload fetching, to monitor browsing, strip security headers, and enable remote code execution, highlighting ongoing threats from malicious browser extensions.