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Shikitega Linux Malware

Sep 15, 2022 1:51:05 PM / by PolySwarm Tech Team posted in Threat Bulletin, Linux, Shikitega, CVE-2021-4034, CVE-2021-3493

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Executive Summary

In our 2021 Year in Review, we predicted a rise in Linux malware for 2022. AT&T Alien Labs recently reported on Shikitega, a new Linux malware with stealth capabilities.

Key Takeaways

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DarkAngels Linux Ransomware

Sep 12, 2022 1:45:13 PM / by PolySwarm Tech Team posted in Threat Bulletin, Ransomware, Linux, DarkAngels

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Related families: Babuk

Executive Summary

Uptycs recently reported on a new DarkAngels Linux ransomware variant that appears to still be in development.

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Charming Kitten Hyperscrape Tool

Sep 9, 2022 1:13:55 PM / by PolySwarm Tech Team posted in Threat Bulletin, Iran, Hyperscrape, Scraper, Charming Kitten, APT35

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Executive Summary

Google’s Threat Analysis Group (TAG) recently reported on Hyperscrape, a new data extraction tool used by the Iranian nexus threat actor group Charming Kitten.


Key Takeaways

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Agenda Ransomware

Sep 6, 2022 3:11:38 PM / by PolySwarm Tech Team posted in Threat Bulletin, Agenda Ransomware, GoLang

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Related Families: Black Basta, Black Matter, REvil

Verticals Targeted: healthcare, education

Executive Summary

Trend Micro recently reported on Agenda Ransomware, a tailored ransomware written in GoLang.

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Lightning Framework

Sep 1, 2022 12:30:19 PM / by PolySwarm Tech Team posted in Threat Bulletin, Linux, Lightning Framework

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Executive Summary

Intezer recently reported on Lightning Framework, a Linux malware with modular plugins and the ability to install rootkits.

Key Takeaways

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GwisinLocker

Aug 29, 2022 2:33:33 PM / by PolySwarm Tech Team posted in Threat Bulletin, Ransomware, GwisinLocker, South Korea

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Verticals Targeted: pharmaceutical, healthcare, industrial

Executive Summary

Ahnlab recently reported on GwisinLocker, a multi-platform ransomware targeting multiple verticals in South Korea.

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Bumblebee Loader

Aug 25, 2022 1:48:41 PM / by PolySwarm Tech Team posted in Threat Bulletin, Loader, BazarLoader, BazarBackdoor, Bumblebee, BazaLoader

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Related Families: BazarLoader, BazaLoader, Conti, BazarBackdoor, Trickbot, Diavol, Sliver, Bokbot, Meterpreter, Cobalt Strike

Verticals Targeted: Multiple

Executive Summary

Earlier this month, Palo Alto’s Unit 42 reported on recent activity leveraging Bumblebee. Unit 42 observed activity by multiple threat actors, including Projector Libra.

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RapperBot Targets IoT

Aug 22, 2022 3:09:40 PM / by PolySwarm Tech Team posted in Threat Bulletin, Linux, IoT, SSH, Mirai, RapperBot

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Executive Summary

FortiGuard Labs recently reported on RapperBot, a malware family with a built-in capability to brute force credentials and gain access to SSH servers.

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