Akira Ransomware

malware OpenTrojan Threat Intelligence

Windows & ESXi; double extortion

Source Attribution

Origin
MITRE
Source
CISA advisory AA24-109A
Verified
2026-08-26T16:07:01.550Z
Confidence
high

Source: CISA advisory AA24-109A · Verified: 2026-08-26T16:07:01.550Z · Confidence: high

Security Timeline

  • discovered Akira Ransomware first observed
  • updated Encyclopedia entry reviewed (Phase 45C)

Quick Answer

Akira is a RaaS observed since 2023 targeting Windows and VMware ESXi with double extortion. (attributes recorded from CISA advisory AA24-109A).

Definition

Akira is a RaaS observed since 2023 targeting Windows and VMware ESXi with double extortion.

Overview

Akira is a RaaS observed since 2023 targeting Windows and VMware ESXi with double extortion.

Behavior

  • Data exfiltration before encryption
  • ESXi variant
  • Russia-oriented leak site

First Seen

2023-03

Target

Windows & ESXi; double extortion

Malware Intelligence

Family: Akira Ransomware

Techniques: T1486, T1567, T1078

Targets: Windows & ESXi; double extortion

Behavior:
  • Data exfiltration before encryption
  • ESXi variant
  • Russia-oriented leak site

References

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