Gustuff return, new features for victims

By Vitor Ventura with contributions from Chris Neal. Executive summary The Gustuff banking trojan is back with new features, months after initially appearing targeting financial institutions in Australia. Cisco Talos first reported on Gustuff in April. Soon after, the actors behind Gustuff starte...

Gustuff Android Banker Switches Up Technical Approach

An Instagram-initiated campaign using the Gustuff Android mobile banking trojan has rolled out in October, featuring an updated version of the malware that lowers its detection profile. How the cybercriminals are rolling out the campaign is the same as a previous offensive seen in June, according...

Threat Source (April 11)

Newsletter compiled by Jonathan Munshaw. Welcome to this week’s Threat Source newsletter — the perfect place to get caught up on all things Talos from the past week. If you haven’t yet, there’s still time to register for this year’s Talos Threat Research Summit — our second annual conference by...

Gustuff banking botnet targets Australia

Vitor Ventura authored this post. Executive summary Cisco Talos has uncovered a new Android-based campaign targeting Australian financial institutions. As the investigation progressed, Talos came to understand that this campaign was associated with the "ChristinaMorrow" text message spam scam...

New Gustuff Android malware targets cryptocurrency & messaging apps

By Waqas Gustuff Android malware from Russia with love. Group-IB, a cybersecurity firm, has discovered a new breed of Trojan horse malware called Gustuff, which specifically targets Android phones to steal banking credentials and digital assets of users. The malware targets customers of...