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HellDown Ransomware Linux Variant

Nov 25, 2024 1:39:46 PM / by The Hivemind posted in Threat Bulletin, Ransomware, Linux, Emerging Threat, ESXi, HellDown

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FASTCash Linux Variant

Nov 4, 2024 1:04:08 PM / by The Hivemind posted in Threat Bulletin, Linux, FastCash, Payment Switch

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Verticals Targeted: Financial 

Executive Summary

A Linux variant of FASTCash “payment switch” malware was recently discovered. This malware is typically used by North Korea nexus threat actor groups to make unauthorized cash withdrawals from ATMs.

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Perfectl Linux Malware

Oct 15, 2024 2:29:59 PM / by The Hivemind posted in Threat Bulletin, Linux, Cryptominer, Perfectl, Monero, Proxyjacking

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Executive Summary

Perfectl is a malware family that targets misconfigured Linux servers. In a recent campaign, Perfectl was observed deploying cryptominers and proxyjacking software.

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Labyrinth Chollima Using Poisoned Python Packages to Deliver PondRAT

Sep 30, 2024 1:49:09 PM / by The Hivemind posted in Threat Bulletin, North Korea, Linux, MacOS, PondRAT, PoolRAT, Labyrinth Chollima

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Related Families: PondRAT, PoolRAT
Verticals Targeted: Software Development 

Executive Summary

North Korea nexus threat actor group Labyrinth Chollima was observed using poisoned Python packages to deliver PondRAT, a backdoor that targets MacOS and Linux systems.  

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Play Ransomware Linux Variant Discovered

Jul 26, 2024 3:02:38 PM / by The Hivemind posted in Threat Bulletin, Ransomware, Linux, Play, ESXi

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Executive Summary

A Linux variant of Play ransomware has been observed that is capable of targeting ESXi environments.

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TargetCompany Ransomware Linux Variant

Jun 10, 2024 2:25:02 PM / by The Hivemind posted in Threat Bulletin, Ransomware, Linux, Asia, APAC, TargetCompany, ESXi

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Verticals Targeted: Healthcare, Finance, Government, Manufacturing, Education, Information Technology, Retail, Transportation, Utilities, Telecommunications

Executive Summary

A new Linux variant of TargetCompany ransomware was recently discovered that uses a custom shell script to deliver and execute payloads in ESXi environments.

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Velvet Chollima Using Gomir Linux Backdoor

May 24, 2024 11:58:05 AM / by The Hivemind posted in Threat Bulletin, Espionage, North Korea, Linux, Kimsuky, GoBear, Velvet Chollima, Gomir, Troll Stealer

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Related Families: GoBear, Troll Stealer, BetaSeed, Endor
Verticals Targeted: Government 

Executive Summary

North Korea nexus threat actor group Velvet Chollima was observed using a new Linux backdoor, dubbed Gomir, to target entities in South Korea.

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Ebury Compromised 400K Linux Servers

May 20, 2024 2:59:44 PM / by The Hivemind posted in Threat Bulletin, Stealer, Linux, Backdoor, Cryptocurrency, Ebury, HelimodSteal, HelimodProxy, HelimodRedirect

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Related Families: HelimodSteal, HelimodProxy, HelimodRedirect

Executive Summary

A longstanding botnet campaign is known to deliver Ebury, an OpenSSH backdoor and credential stealer.

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