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
APT group HoneyMyte upgrades CoolClient: the backdoor gets a kernel-level Windows rootkit
Our experts discovered a new CoolClient backdoor variant with a kernel-mode rootkit driver that hides malicious processes, files, and network connections from security tools and threat analysts.
Armored Likho expands its cyber-espionage toolkit
Kaspersky experts break down a new Armored Likho campaign that poses as a fundraising efforts and delivers a new Still Toolkit aimed at stealing Telegram data and eavesdropping on victims.
Mirage Kitten targets Middle East and Africa region with new malware
Kaspersky researchers reveal previously undocumented malware attributed to Mirage Kitten (UNC1549, Smoke Sandstorm, Nimbus Manticore): NightLedger backdoor, ArcBridge, and BridgeHead tunneling tools.
ToddyCat: your hidden email assistant. Part 2
An in-depth analysis of Umbrij, a new tool used by the ToddyCat APT group to compromise corporate email communications in Gmail. The attack targeted OAuth authorization tokens, allowing threat actors to gain access to Google services.
