AKIRA Ransomware Gang: 4 New Victims Posted — US/UK Manufacturing & Energy Sector Targeting Analysis & Detection Rules

Classification: TLP:CLEAR | Date: 2026-09-09 | Analyst: Security Arsenal Ransomware Intelligence Desk | Source: AKIRA .onion leak site (via ransomware.live), CISA KEV

Executive Summary

AKIRA has posted 4 new victims in a 48-hour window (2026-09-08 through 2026-09-09), with a clear concentration on US-based manufacturing and hospitality and UK critical infrastructure-adjacent targets. The posting cadence and victim selection are consistent with AKIRA's established playbook: edge-device initial access, rapid encryption, and double-extortion pressure via data publication. Security teams in Manufacturing, Energy & Utilities, Hospitality, and Technology — particularly those with Check Point, Cisco VPN, or SonicWall edge infrastructure — should treat this as an active-campaign alert.

Threat Actor Profile — AKIRA

Current Campaign Analysis

Victims Posted (last 100 leak-site postings, filtered)

Sector Targeting

The four victims span Manufacturing, Energy & Utilities, Hospitality, and Technology — a classic AKIRA cross-sector pattern. AKIRA does not conduct single-industry campaigns; affiliates pivot to whatever edge exposure or credential set yields access. However, two signals stand out:

• Manufacturing remains AKIRA's most reliable revenue vertical — Kyodo USA fits the profile of mid-market manufacturers with flat networks, legacy OT-adjacent systems, and under-monitored VPN gateways.
• Brent Electric (Energy & Utilities, GB) is the highest-impact posting. Small-to-mid energy contractors are deliberately chosen: they hold project data, SCADA-adjacent documentation, and client relationships with larger utilities, creating outsized extortion leverage.

Geographic Concentration

United States (50% of postings) and United Kingdom (25%), with one undisclosed. This matches AKIRA's long-standing preference for English-speaking jurisdictions where payment rates are highest and legal exposure is manageable for the operator.

Victim Profile

All four victims fall in the SMB-to-mid-market band (estimated $10M–$250M annual revenue). AKIRA systematically avoids both microbusinesses (can't pay) and Fortune-500 targets (draw regulatory/law-enforcement heat). Brentwood Country Club — a hospitality target — suggests opportunistic exploitation of a weak perimeter rather than deliberate sector selection.

Posting Frequency / Escalation

Four postings in two days is above AKIRA's baseline of ~1–2 posts/day and indicates a batch of concurrent affiliate intrusions reaching extortion deadline simultaneously. Expect additional postings from the same intrusion wave over the next 72 hours, likely including further US manufacturing and professional-services victims.

CVE Correlation — Probable Initial Access Vectors

Assessment: This campaign is consistent with a mixed initial-access operation: edge-gateway exploitation (Check Point, CVE-2026-50751) for manufacturing/energy victims, and RMM/tooling abuse (ScreenConnect, Nx) for SMB and technology victims.

Detection Engineering

The following detections target AKIRA's known TTPs: VPN/edge exploitation, RMM abuse, credential dumping, staging with Rclone/FileZilla, shadow copy destruction, and pre-encryption discovery.

---
title: AKIRA - Rclone or Cloud Sync Exfiltration Staging
description: Detects execution of Rclone, WinSCP, or FileZilla with cloud transfer arguments, a known AKIRA pre-encryption exfiltration technique.
status: experimental
author: Security Arsenal Threat Intel
logsource:
  category: process_creation
  product: windows
detection:
  selection_binary:
    Image|endswith:
      - '\rclone.exe'
      - '\winscp.exe'
      - '\filezilla.exe'
      - '\megasync.exe'
  selection_args:
    CommandLine|contains:
      - 'copy'
      - 'sync'
      - 'move'
      - '--config'
      - 'remote:'
  condition: selection_binary and selection_args
falsepositives:
  - Legitimate admin backup operations
level: high
tags:
  - attack.exfiltration
  - attack.t1567.002
  - attack.t1048
---
title: AKIRA - Volume Shadow Copy Deletion via WMIC or Vssadmin
description: Detects shadow copy deletion attempts, a near-universal AKIRA pre-encryption action executed shortly before detonation.
status: experimental
author: Security Arsenal Threat Intel
logsource:
  category: process_creation
  product: windows
detection:
  selection_vssadmin:
    Image|endswith: '\vssadmin.exe'
    CommandLine|contains:
      - 'delete shadows'
      - 'resize shadowstorage'
  selection_wmic:
    Image|endswith:
      - '\wmic.exe'
      - '\powershell.exe'
    CommandLine|contains:
      - 'shadowcopy delete'
      - 'delete shadowcopy'
      - 'Win32_ShadowCopy'
  condition: 1 of selection_*
falsepositives:
  - Backup maintenance scripts (rare; scope by service account)
level: critical
tags:
  - attack.impact
  - attack.t1490
---
title: AKIRA - Suspicious RMM Tool Execution Followed by Discovery Commands
description: Detects ScreenConnect/AnyDesk-style RMM execution chained with reconnaissance commands typical of AKIRA hands-on intrusions via CVE-2024-1708 or trojanized tooling.
status: experimental
author: Security Arsenal Threat Intel
logsource:
  category: process_creation
  product: windows
detection:
  selection_discovery:
    CommandLine|contains:
      - 'net group "Domain Admins"'
      - 'nltest /dclist'
      - 'arp -a'
      - 'quser'
      - 'qwinsta'
      - 'netstat -an'
  filter_parent:
    ParentImage|endswith:
      - '\explorer.exe'
      - '\outlook.exe'
      - '\chrome.exe'
  condition: selection_discovery and not filter_parent
falsepositives:
  - IT admin remote sessions
level: medium
tags:
  - attack.discovery
  - attack.t1033
  - attack.t1018

// Security Arsenal — AKIRA Pre-Ransomware Staging Hunt (Microsoft Sentinel)
// Hunts: lateral movement + staging signals within a 72h window per device
// Recommended: run over last 14 days, escalate any device with >=2 distinct signal types

let Lookback = 14d;
let StagingTools = dynamic(["rclone.exe","winscp.exe","filezilla.exe","psexec.exe","wmiprvse.exe","cobalt","beacon.exe"]);
let ProcSignals =
    DeviceProcessEvents
    | where TimeGenerated > ago(Lookback)
    | extend Tool = tolower(split(FileName, ".")[0])
    | where Tool in~ (StagingTools)
       or ProcessCommandLine has_any ("delete shadows","shadowcopy delete","copy --","remote:","net group","/dclist")
    | extend SignalType = case(
        Tool in~ ("rclone","winscp","filezilla"), "ExfilStaging",
        ProcessCommandLine has_any ("delete shadows","shadowcopy"), "ShadowCopyDestruction",
        Tool in~ ("psexec","wmiprvse"), "LateralMovement",
        "Discovery");
let AuthSignals =
    SigninLogs
    | where TimeGenerated > ago(Lookback)
    | where ResultType == 0
    | extend SignalType = "VPNAuth";
ProcSignals
| summarize SignalTypes = make_set(SignalType), FirstSeen = min(TimeGenerated), LastSeen = max(TimeGenerated),
            SampleCommands = make_set(ProcessCommandLine, 5), FileCount = dcount(FileName)
    by DeviceName, AccountName
| extend DistinctSignals = array_length(SignalTypes)
| where DistinctSignals >= 2
| project DeviceName, AccountName, DistinctSignals, SignalTypes, FirstSeen, LastSeen, SampleCommands
| order by DistinctSignals desc, LastSeen desc

# Security Arsenal — AKIRA Rapid Response Triage (run on VPN-adjacent servers & suspected hosts)
# Checks: shadow copy integrity, recent scheduled tasks, suspicious staging tools, RDP exposure

Write-Host "=== AKIRA Rapid Triage — $(Get-Date) ===" -ForegroundColor Cyan

# 1. Volume Shadow Copy status (AKIRA deletes these pre-encryption)
$shadows = Get-WmiObject Win32_ShadowCopy -ErrorAction SilentlyContinue
if (-not $shadows) { Write-Host "[CRITICAL] No Volume Shadow Copies present — possible pre-encryption destruction." -ForegroundColor Red }
else { Write-Host "[OK] $($shadows.Count) shadow copies present (oldest: $(($shadows | Sort InstallDate)[0].InstallDate))" }

# 2. Scheduled tasks created/modified in last 7 days (persistence)
$cutoff = (Get-Date).AddDays(-7)
Get-ScheduledTask | Where-Object { $_.Date -and ([datetime]$_.Date) -gt $cutoff } |
  Select-Object TaskName, TaskPath, Date, @{n='Action';e={$_.Actions.Execute}} |
  Format-Table -AutoSize

# 3. Known AKIRA staging/exfil tools on disk
$tools = @('rclone.exe','winscp.exe','filezilla.exe','megasync.exe','anydesk.exe','screenconnect*.exe','psexec.exe')
foreach ($t in $tools) {
  Get-ChildItem -Path 'C:\Users\','C:\ProgramData\','C:\Temp\' -Filter $t -Recurse -ErrorAction SilentlyContinue |
    Select-Object FullName, CreationTime | Format-Table -AutoSize
}

# 4. RDP exposure check
$rdp = Get-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server' -Name fDenyTSConnections -ErrorAction SilentlyContinue
if ($rdp.fDenyTSConnections -eq 0) {
  Write-Host "[WARN] RDP ENABLED. Audit 4625/4624 Type 10 logons from last 72h immediately." -ForegroundColor Yellow
}

# 5. Recent failed logons (brute-force indicator)
Get-WinEvent -FilterHashtable @{LogName='Security'; Id=4625; StartTime=$cutoff} -MaxEvents 500 -ErrorAction SilentlyContinue |
  Group-Object { $_.Properties[19].Value } | Sort-Object Count -Descending |
  Select-Object -First 10 Count, Name | Format-Table -AutoSize

Write-Host "=== Triage complete. Correlate any CRITICAL/WARN hits with Sentinel hunt before isolation. ===" -ForegroundColor Cyan

Incident Response Priorities

T-Minus Detection Checklist (before encryption fires)

1. VPN/edge auth anomalies — successful logons from unusual geographies/ASNs on Check Point, Cisco, or SonicWall gateways, especially outside business hours (CVE-2026-50751 exploitation produces authentication-bypass events that may look like valid logons).
2. RMM binaries appearing where they don't belong — ScreenConnect, AnyDesk, or unexpected rclone.exe/winscp.exe on servers.
3. Shadow copy deletion events — the single highest-fidelity pre-detonation signal.
4. Discovery command bursts — nltest, net group "Domain Admins", qwinsta within minutes of each other from a single account.
5. Unusual outbound volume — sustained FTP/HTTPS uploads to unfamiliar endpoints (data staging phase; typically 24–72h before detonation).

Critical Assets AKIRA Prioritizes for Exfiltration

• Financial records, payroll, and banking details (extortion leverage)
• Employee PII and HR files (regulatory pressure)
• Client contracts and project data (for energy/manufacturing: schematics, bids, SCADA-adjacent documentation)
• Email archives from on-prem Exchange (CVE-2023-21529 targets)

Containment Actions — Ordered by Urgency

1. Isolate affected hosts at the switch/EDR level — do NOT shut down (preserves volatile evidence and running encryptor artifacts).
2. Disable the compromised identity and force enterprise-wide credential reset, prioritizing VPN and domain admin accounts.
3. Block outbound exfil at the perimeter: FTP egress, unknown cloud storage endpoints, and unmonitored RMM domains.
4. Snapshot and verify backups — confirm backups predate earliest intrusion indicators and are offline/immutable.
5. Preserve evidence: memory captures of running processes, firewall/VPN logs covering at least 30 days back (dwell time up to 3 weeks).

Hardening Recommendations

Immediate (24 hours)

• Patch Check Point Security Gateway (CVE-2026-50751) and disable IKEv1 where not operationally required. This is the most probable entry vector in the current wave.
• Patch ConnectWise ScreenConnect (CVE-2024-1708) or disable external access; inventory all RMM tools and block unauthorized ones via application control.
• Patch Exchange Server (CVE-2023-21529) and Windows link-following EoP (CVE-2025-60710) per CISA KEV due dates.
• Enforce MFA on all VPN and remote access — phishing-resistant (FIDO2) where possible; AKIRA's credential-based entries collapse under MFA.
• Block Rclone/WinSCP/FileZilla execution on servers and workstations via AppLocker/WDAC unless explicitly required.
• Alert on any shadow copy deletion command — treat as a critical-severity page.

Short-Term (2 weeks)

• Segment the network: isolate OT/manufacturing zones, restrict SMB/RPC between user and server VLANs, and eliminate flat-network paths that AKIRA exploits for one-pass encryption.
• Deploy immutable/offline backups with a tested restore runbook; AKIRA specifically hunts backup infrastructure (Veeam, NAS shares) before detonation.
• EDR with ransomware behavioral blocking on all endpoints including domain controllers and hypervisors (AKIRA's Linux variant targets ESXi — restrict SSH and enable host lockdown).
• Egress filtering with TLS inspection on outbound flows to catch staging-phase exfiltration.
• Audit developer tooling supply chains (post-Nx incident, CVE-2026-48027): pin package versions, verify signatures, and monitor developer endpoints for anomalous outbound connections.

Analyst Note

AKIRA's speed is its defining characteristic — organizations that rely on weekly detection cycles will miss the intrusion entirely. The combination of edge-device exploitation (Check Point CVE-2026-50751) and a sub-one-week dwell time means the only controls that matter are the ones in place today. If you operate Check Point gateways or ScreenConnect in Manufacturing, Energy, or Hospitality, assume you are in AKIRA's current targeting set and hunt accordingly.

Related Resources

Security Arsenal Incident Response Managed SOC & MDR Services AlertMonitor Threat Detection From The Dark Side Intel Hub