The PolySwarm Blog

Executive Summary

FrigidStealer is a stealer that targets MacOS devices. It has been active since at least late 2024 and is delivered via web injection campaigns.

Related Families: RIG, Fallout EK

Executive Summary

SystemBC, a RAT that previously only targeted Windows systems was recently observed targeting Linux.

Verticals Targeted: Government, Education, Technology, Telecommunications

Executive Summary

Chinese threat actors were recently observed using BadIIS to manipulate SEO and direct victims to illegal gambling sites.

Executive Summary

Verticals Targeted: Financial 

Executive Summary

Coyote, which was first observed in early 2024, is a banking trojan that has targeted over 1030 sites and 73 financial institutions.

Related Families: INC
Verticals Targeted: Legal Services, Retail, Finance, Telecommunications, Agriculture, Manufacturing, Construction, Transportation, Healthcare, Energy

Executive Summary

Lynx ransomware is a ransomware-as-a-service (RaaS) that was first observed in July 2024. Since its debut, the ransomware has gained momentum and has continued its activity into early 2025.

Verticals Targeted: Oil & Gas, Energy, Legal Services 

Executive Summary

MintsLoader, a PowerShell-based loader, was recently observed delivering StealC and BOINC.

Related Families: AISURU

Executive Summary

AIRASHI is a variant of the AISURU botnet that has been active since at least late 2024. It is in active development and has the capability to conduct large-scale DDoS attacks.