trend micro research : network

SecurityTrendMicro

Attacks on 5G Infrastructure From Users’ Devices

Credit to Author: Salim S.I.| Date: Wed, 20 Sep 2023 00:00:00 +0000

Crafted packets from cellular devices such as mobile phones can exploit faulty state machines in the 5G core to attack cellular infrastructure. Smart devices that critical industries such as defense, utilities, and the medical sectors use for their daily operations depend on the speed, efficiency, and productivity brought by 5G. This entry describes CVE-2021-45462 as a potential use case to deploy a denial-of-service (DoS) attack to private 5G networks.

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SecurityTrendMicro

Earth Estries Targets Government, Tech for Cyberespionage

Credit to Author: Ted Lee| Date: Wed, 30 Aug 2023 00:00:00 +0000

We break down a new cyberespionage campaign deployed by a cybercriminal group we named Earth Estries. Analyzing the tactics, techniques, and procedures (TTPs) employed, we observed overlaps with the advanced persistent threat (APT) group FamousSparrow as Earth Estries targets governments and organizations in the technology sector.

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SecurityTrendMicro

SeroXen Mechanisms: Exploring Distribution, Risks, and Impact

Credit to Author: Peter Girnus| Date: Tue, 20 Jun 2023 00:00:00 +0000

This is the third installment of a three-part technical analysis of the fully undetectable (FUD) obfuscation engine BatCloak and SeroXen malware. In this entry, we document the techniques used to spread and abuse SeroXen, as well as the security risks, impact, implications of, and insights into highly evasive FUD batch obfuscators.

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