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Lyceum .NET DNS Backdoor “DnsSystem”

Jun 24, 2022 11:22:18 AM / by PolySwarm Tech Team posted in Threat Bulletin, Lyceum, Hexane, Siamese Kitten, DnsSystem, .NET DNS Backdoor

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Executive Summary

Zscaler recently reported on a new .NET DNS backdoor “DnsSystem” used by the threat actor group known as Lyceum. It is primarily used to target entities in the Middle East.

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Symbiote Linux Malware

Jun 20, 2022 9:01:49 AM / by PolySwarm Tech Team posted in Threat Bulletin, Linux, Symbiote

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Executive Summary

Intezer and BlackBerry recently reported on Symbiote, a difficult to detect Linux malware that relies on existing running processes to infect a system.

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Pymafka Targets macOS, Windows, Linux

Jun 17, 2022 11:17:39 AM / by PolySwarm Tech Team posted in Threat Bulletin, Windows, Linux, Python, Pymafka, Cobalt Strike

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Executive Summary

Sonatype recently reported on Pymakfa, a malicious Python package in the PyPl registry dropping Cobalt Strike on macOS, Windows, and Linux.

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Enemybot IoT Malware

Jun 13, 2022 12:47:53 PM / by PolySwarm Tech Team posted in Threat Bulletin, Android, Linux, Enemybot, CMS

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Executive Summary

AT&T Alien Labs recently reported on Enemybot, an internet of things (IoT) malware targeting content management systems (CMS), Linux, and Android.

Key Takeaways

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Follina MSDT Vulnerability (CVE-2022-30190)

Jun 6, 2022 10:54:53 AM / by PolySwarm Tech Team posted in Threat Bulletin, Windows, Follina, CVE-2022-30190, MS Office, MSDT

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Background

Microsoft recently published an advisory on a newly identified zero-day vulnerability that affects Microsoft Support Diagnostic Tool (MSDT). CVE-2022-30190, which is being exploited in the wild, has been dubbed Follina by industry researcher Kevin Beaumont.

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PolySwarms New Hunt Functionality

Jun 2, 2022 11:09:53 AM / by PolySwarm Tech Team posted in PolySwarm, Threat Hunting, New Features, Product Update

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Many of you have given us feedback on our live and historical hunt functionality and we are thrilled to let you know that we are going live with your suggestions.

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New ArguePatch Variant Spotted

May 31, 2022 12:03:49 PM / by PolySwarm Tech Team posted in Ukraine, Russia, Threat Bulletin, CaddyWiper, Industroyer2, Sandworm, Voodoobear, ArguePatch

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Background

ESET recently tweeted about a new version of ArguePatch, a malware loader used by VooDoo Bear (Sandworm) in multiple attacks against Ukrainian assets. ESET also gave an overview of the new version of ArguePatch on their WeLiveSecurity blog.

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Cryware Targets Crypto Wallets

May 27, 2022 9:34:55 AM / by PolySwarm Tech Team posted in Cryptocurrency, Cryware, Keylogging, Memory Dumping, Clipping & Switching, Crypto Wallet

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Background

Microsoft recently reported on “cryware”, information stealers that target non-custodial cryptocurrency wallets, or hot wallets.

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