Global Threat Intelligence

From ERMAC to Hook: Investigating the technical differences between two Android malware variants

Authored by Joshua Kamp (main author) and Alberto Segura. Summary Hook and ERMAC are Android based malware families that are both advertised by the actor named “DukeEugene”. Hook is the latest variant to be released by this actor and was first announced at the start of 2023. In this announcement,…

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September 11, 2023

22 mins read

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Approximately 2000 Citrix NetScalers backdoored in mass-exploitation campaign

Fox-IT (part of NCC Group) has uncovered a large-scale exploitation campaign of Citrix NetScalers in a joint effort with the Dutch Institute of Vulnerability Disclosure (DIVD). An adversary appears to have exploited CVE-2023-3519 in an automated fashion, placing webshells on vulnerable NetScalers to gain persistent access. The adversary can execute…

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Threat Spotlight – Hydra

This publication is part of our Annual Threat Monitor report that was released on the 8th of Febuary 2023. The Annual threat Monitor report can be found here. Authored by Alberto Segura Introduction Hydra, also known as BianLian, has been one of the most active mobile banking malware families in…

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