Cristian Souza
Incident Response Specialist, GERT
Cristian Souza is an Incident Response Specialist at Kaspersky’s Global Emergency Response Team (GERT). He holds a degree in Computer Networks and is currently pursuing a Ph.D. in Computer Science at the University of São Paulo (USP). Cristian’s primary responsibilities include conducting forensic analysis of critical incidents, identifying their root causes, and performing malware reverse engineering. An active contributor to the cyber security community, Cristian has published several research papers and holds certifications including CISSP, GCFA, GREM, and GXPN.Publications
Reports
Tomiris wreaks Havoc: New tools and techniques of the APT group
Kaspersky discloses new tools and techniques discovered in 2025 Tomiris activities: multi-language reverse shells, Havoc and AdaptixC2 open-source frameworks, communications via Discord and Telegram.
ToddyCat: your hidden email assistant. Part 1
Kaspersky experts analyze the ToddyCat APT attacks targeting corporate email. We examine the new version of TomBerBil, the TCSectorCopy and XstReader tools, and methods for stealing access tokens from Outlook.
Crypto wasted: BlueNoroff’s ghost mirage of funding and jobs
Kaspersky GReAT experts dive deep into the BlueNoroff APT’s GhostCall and GhostHire campaigns. Extensive research detailing multiple malware chains targeting macOS, including a stealer suite, fake Zoom and Microsoft Teams clients and ChatGPT-enhanced images.
Mem3nt0 mori – The Hacking Team is back!
Kaspersky researchers discovered previously unidentified commercial Dante spyware developed by Memento Labs (formerly Hacking Team) and linked it to the ForumTroll APT attacks.
