A is a malicious tool used by threat actors to hijack user sessions by exfiltrating browser cookies. This type of attack is a form of Cross-Site Scripting (XSS) , where an attacker injects JavaScript into a trusted website to capture sensitive data. How the Script Works
: The script accesses the document.cookie object, which often contains session identifiers, login keys, and personalization data. cookie stealer script
: It sends the stolen cookies to a remote server controlled by the attacker via an HTTP GET or POST request. Consequences of a Successful Attack A is a malicious tool used by threat
Joe Web Challenge — Google CTF 2017 | by Ons A. - codeburst : It sends the stolen cookies to a
: Once the victim visits the compromised page or opens the malicious email, the script runs automatically in their browser.
: Some scripts, like those used by the "Earth Wendigo" group, can append themselves to the victim's email signature to spread to other contacts. Prevention and Mitigation