Trellix Insights: New Open-Source Tools Used By FiveHands Ransomware Variant
Last Modified: 2022-09-07 09:13:00 Etc/GMT
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Trellix Insights: New Open-Source Tools Used By FiveHands Ransomware Variant
Technical Articles ID:
KB94914
Last Modified: 2022-09-07 09:13:00 Etc/GMT Environment
IMPORTANT: This Knowledge Base article discusses a specific threat that is being automatically tracked by Trellix Insights technology. The content is intended for use by Trellix Insights users, but is provided for general knowledge to all customers. Contact us for more information about Trellix Insights.
SummaryA new variant of the FiveHands ransomware family was discovered. The malware used various open-source tools to carry out the operation. The actor exploited an Internet-facing SonicWall VPN appliance to gain an initial foothold. SoftPerfect Network Scanner, Advanced Port Scanner, Remote Utilities, All-In-One Password Recovery Pro, and PsExec were used for reconnaissance, remote administration, and persistence. The pCloud encrypted cloud storage was used to host exfiltrated data. Our Threat Reseach team gathers and analyzes information from multiple open and closed sources before disseminating intelligence reports. This campaign was researched by NCC Group and shared publicly. How to use this article:
Campaign IOC
Minimum Content Versions
Detection Summary
Minimum set of Manual Rules to improve protection to block this campaign: IMPORTANT: Always follow best practices when you enable new rules and signatures. When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration. For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules. Endpoint Security - Advanced Threat Protection: Aggressive set of Manual Rules to improve protection to block this campaign: IMPORTANT: Always follow best practices when you enable new rules and signatures. When you implement new rules or signatures, always set them to Report mode first and check the alerts generated. Resolve any issues that arise and then set the rules to Block. This step mitigates against triggering false positives and allows you to refine your configuration. For more information, see KB87843 - List of and best practices for Endpoint Security Dynamic Application Containment rules. VirusScan Enterprise - Access Protection Rules: Host Intrusion Prevention: Rule ID: 1148 CMD Tool Access by a Network Aware Application Rule ID: 6010 Generic Application Hooking Protection Affected Products |
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