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Springtail: New Linux Backdoor Added to Toolkit

2024-05-16, Symantec
https://symantec-enterprise-blogs.security.com/blogs/threat-intelligence/springtail-kimsuky-backdoor-espionage
#Gomir #Springtail #TrollStealer #GoBear

Contents

Springtail: New Linux Backdoor Added to Toolkit
More than one legitimate software package was modified to deliver malware in North Korean group’s recent campaign against South Korean organizations.
Symantec’s Threat Hunter Team has uncovered a new Linux backdoor developed by the North Korean Springtail espionage group (aka Kimsuky) that is linked to malware used in a recent campaign against organizations in South Korea.
The backdoor (Linux.Gomir) appears to be a Linux version of the GoBear backdoor, which was used in a recent Springtail campaign that saw the attackers deliver malware via Trojanized software installation packages. Gomir is structurally almost identical to GoBear, with extensive sharing of code between malware variants.
Background
Springtail is a tight-knit espionage group that initially specialized in attacks on public sector organizations in South Korea. The group first came to public attention in 2014, when the South Korean government said it was responsible for an attack on Korea Hydro and Nuclear …

IoC

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