Denis Legezo

An GCFA-certified specialist who worked as Senior Security Researcher with Global Research and Analysis Team (GreAT) At Kaspersky from 2014 till 2022. He specialized on targeted attacks research, reverse engineering and malware analysis. Denis regularly provided trainings for the customers on these matters. He got his degree at cybernetics and applied mathematics facility of Moscow State University in 2002 with diploma topic related to information security. Then he started his career as a programmer in different public and commercial companies. He presented his researches at RSA, HITB, SAS, VirusBulletin, MBLT Dev.

@legezo

Reports

The report features the most significant developments relating to APT groups in Q1 2024, including the new malware campaigns DuneQuixote and Durian, and hacktivist activity.

We continue to report on the APT group ToddyCat. This time, we’ll talk about traffic tunneling, constant access to a target infrastructure and data extraction from hosts.

New unattributed DuneQuixote campaign targeting entities in the Middle East employs droppers disguised as Total Commander installer and CR4T backdoor in C and Go.

In this report Kaspersky researchers provide an analysis of the previously unknown HrServ web shell, which exhibits both APT and crimeware features and has likely been active since 2021.

Denis Legezo

LuckyMouse hits national data center to organize country-level waterholing campaign

Microcin is here

A new secret stash for “fileless” malware

How to trick traffic sensors

InPage zero-day exploit used to attack financial institutions in Asia

Publications

A new secret stash for “fileless” malware

MoonBounce: the dark side of UEFI firmware

WildPressure targets the macOS platform

MontysThree: Industrial espionage with steganography and a Russian accent on both sides

Microcin is here

WildPressure targets industrial-related entities in the Middle East

Chafer used Remexi malware to spy on Iran-based foreign diplomatic entities

LuckyMouse hits national data center to organize country-level waterholing campaign

FIFA public Wi-Fi guide: which host cities have the most secure networks?

Research on unsecured Wi-Fi networks across the world

InPage zero-day exploit used to attack financial institutions in Asia

How to trick traffic sensors

External Publications

Industrial espionage with steganography and Russian accent on both sides

Payment required: rare HTTP statuses and air-gaps avoidance from the authors of COMPFun

From Authors of COMPFun: HTTP Statuses as C2 Commands and Compromised TLS

Microcin-2020: GitLab programmers ban, async sockets and the sock

Targeted attacks through ISPs

Reports

APT trends report Q1 2024

ToddyCat is making holes in your infrastructure

DuneQuixote campaign targets Middle Eastern entities with “CR4T” malware

HrServ – Previously unknown web shell used in APT attack

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