Chinese language Hackers TAG-74 Targets South Korean Organizations in a Multi-12 months Marketing campaign

Sep 26, 2023THNCyber Espionage / Malware

A “multi-year” Chinese language state-sponsored cyber espionage marketing campaign has been noticed concentrating on South Korean tutorial, political, and authorities organizations.

Recorded Future’s Insikt Group, which is tracking the exercise below the moniker TAG-74, mentioned the adversary has been linked to “Chinese military intelligence and poses a significant threat to academic, aerospace and defense, government, military, and political entities in South Korea, Japan, and Russia.”

The cybersecurity agency characterised the concentrating on of South Korean tutorial establishments as in alignment with China’s broader efforts to conduct mental property theft and develop its affect, to not point out motivated by the nation’s strategic relations with the U.S.


Social engineering assaults mounted by the adversary make use of Microsoft Compiled HTML Assist (CHM) file lures to drop a customized variant of an open-source Visible Primary Script backdoor known as ReVBShellwhich subsequently serves to deploy the Bisonal distant entry trojan.

ReVBShell is configured to sleep for a specified interval through a command issued from a distant server that may edit the time interval. It additionally makes use of Base64 encoding to masks the command-and-control (C2) site visitors.

The usage of ReVBShell has been tied to 2 different China-nexus clusters generally known as Tick and Tonto Teamwith the latter attributed to an similar an infection sequence by the AhnLab Safety Emergency Response Middle (ASEC) in April 2023.

Bisonal is a multi-functional trojan that may harvest course of and file data, execute instructions and information, terminate processes, obtain and add information, and delete arbitrary information on disk.


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TAG-74 is alleged to be carefully associated to Tick, as soon as once more highlighting the prevalent software sharing amongst Chinese language menace teams.

“The observed TAG-74 campaign is indicative of the group’s long-term intelligence collection objectives against South Korean targets,” Recorded Future mentioned.

“Given the group’s persistent focus on South Korean organizations over many years and the likely operational purview of the Northern Theater Command, the group is likely to continue to be highly active in conducting long-term intelligence-gathering on strategic targets within South Korea as well as in Japan and Russia.”

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Author: (The Hacker Information)
Date: 2023-09-26 05:49:00

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Alina A, Toronto
Alina A, Toronto
Alina A, an UofT graduate & Google Certified Cyber Security analyst, currently based in Toronto, Canada. She is passionate for Research and to write about Cyber-security related issues, trends and concerns in an emerging digital world.


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