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@Volexity has published details from an incident response engagement in September 2025 involving multiple
#BRICKSTORM variants deployed by a threat actor that Volexity tracks as VerdantBamboo. This case involved the breach of the victim organization’s MSP and multiple malware implants found on firewalls, cloud storage sync devices & NAS appliances. VerdantBamboo used a
#0day privilege escalation exploit in the process and was also observed using administrative access to the victim organization's firewall to enable a custom VPN.
For more details on how the incident unfolded, the malware used by the threat actor, and the end goal of the intrusion, check out the full blog post:
volexity.com/blog/2026/06/04…
#dfir