: It primarily targets financial information by monitoring web browser activity for banking sessions.
For detailed technical breakdowns of this type of threat, you can find reports from cybersecurity firms like ESET Research or Securelist by Kaspersky , which frequently document the evolution of the Grandoreiro banking trojan.
: Once the user extracts and runs the contents (usually an executable disguised with a generic icon), it installs a backdoor that can capture keystrokes, take screenshots, and manipulate bank website forms to steal credentials.
: The file name is designed to look like a personal gift or greeting to encourage downloads.
: Often distributed via phishing emails containing links to download the .zip file from compromised websites or legitimate cloud storage services.