Detect Ransomware Pre-Deployment Staging Indicators in IBM QRadar
The hours before ransomware deployment follow a repeatable pattern regardless of group: network share enumeration, credential dumping, detection tool impairment, and staging of the ransomware binary in accessible locations. NCSC UK 2025 threat report identified Akira, Black Basta, and Play as the most active ransomware groups targeting UK SMBs. The staging sequence typically occurs within 1-48 hours before encryption begins, offering a detection opportunity. Key indicators: (1) net use or net share enumeration across the network; (2) vssadmin.exe or wmic delete shadowstorage (shadow copy deletion — the final indicator before encryption); (3) remote execution tool setup (PsExec, PAExec, WMI, WinRM) preparing for domain-wide payload deployment; (4) large file transfers or staging directories created; (5) AV/EDR impairment attempts. This detection targets the staging window before encryption — detection here prevents the actual ransomware event.
MITRE ATT&CK
- Tactic
- Impact Discovery Lateral Movement
QRadar Detection Query
SELECT
DATEFORMAT(starttime, 'YYYY-MM-dd HH:mm:ss') AS EventTime,
devicename AS ComputerName,
username AS Username,
QIDNAME(qid) AS EventName,
LOGSOURCENAME(logsourceid) AS LogSource,
CASE
WHEN (
(UTF8(payload) ILIKE '%vssadmin%' AND (UTF8(payload) ILIKE '%delete%' OR UTF8(payload) ILIKE '%shadowstorage%'))
OR (UTF8(payload) ILIKE '%wmic%' AND UTF8(payload) ILIKE '%shadowcopy%' AND UTF8(payload) ILIKE '%delete%')
OR (UTF8(payload) ILIKE '%bcdedit%' AND (UTF8(payload) ILIKE '%recoveryenabled%' OR UTF8(payload) ILIKE '%bootstatuspolicy%'))
OR (UTF8(payload) ILIKE '%powershell%' AND (UTF8(payload) ILIKE '%Delete-ShadowCopy%' OR UTF8(payload) ILIKE '%Win32_ShadowCopy%delete%'))
) THEN 'ShadowCopyDeletion_CRITICAL'
WHEN (
UTF8(payload) ILIKE '%psexec.exe%' OR UTF8(payload) ILIKE '%psexec64.exe%'
OR UTF8(payload) ILIKE '%paexec.exe%' OR UTF8(payload) ILIKE '%remcom.exe%'
OR (UTF8(payload) ILIKE '%wmic%' AND UTF8(payload) ILIKE '%/node:%' AND UTF8(payload) ILIKE '%process call create%')
) THEN 'RemoteExecTool_HIGH'
WHEN (
(UTF8(payload) ILIKE '%\sc.exe%' OR UTF8(payload) ILIKE '% sc %')
AND (UTF8(payload) ILIKE '%stop%' OR UTF8(payload) ILIKE '%delete%' OR UTF8(payload) ILIKE '%config%')
AND (UTF8(payload) ILIKE '%WinDefend%' OR UTF8(payload) ILIKE '%SentinelAgent%'
OR UTF8(payload) ILIKE '%CSFalconService%' OR UTF8(payload) ILIKE '%MpsSvc%'
OR UTF8(payload) ILIKE '%WdFilter%' OR UTF8(payload) ILIKE '%WdNisSvc%')
) THEN 'DefenseImpairment_HIGH'
WHEN (
UTF8(payload) ILIKE '%taskkill%'
AND (UTF8(payload) ILIKE '%msmpeng%' OR UTF8(payload) ILIKE '%mssense%'
OR UTF8(payload) ILIKE '%csagent%' OR UTF8(payload) ILIKE '%sentinelagent%'
OR UTF8(payload) ILIKE '%cbdaemon%' OR UTF8(payload) ILIKE '%mbam%')
) THEN 'DefenseImpairment_HIGH'
ELSE 'Unknown'
END AS StagingIndicator,
CASE
WHEN (UTF8(payload) ILIKE '%vssadmin%delete%' OR UTF8(payload) ILIKE '%bcdedit%recoveryenabled%'
OR UTF8(payload) ILIKE '%wmic%shadowcopy%delete%') THEN 100
WHEN (UTF8(payload) ILIKE '%sc.exe%stop%WinDefend%' OR UTF8(payload) ILIKE '%taskkill%msmpeng%'
OR UTF8(payload) ILIKE '%taskkill%sentinelagent%') THEN 90
WHEN (UTF8(payload) ILIKE '%psexec%' OR UTF8(payload) ILIKE '%paexec%' OR UTF8(payload) ILIKE '%remcom%') THEN 80
ELSE 60
END AS RiskScore,
UTF8(payload) AS RawEvent
FROM events
WHERE
LOGSOURCETYPEID IN (12, 232, 261)
AND (
(UTF8(payload) ILIKE '%vssadmin%' AND (UTF8(payload) ILIKE '%delete%' OR UTF8(payload) ILIKE '%shadowstorage%'))
OR (UTF8(payload) ILIKE '%wmic%' AND UTF8(payload) ILIKE '%shadowcopy%' AND UTF8(payload) ILIKE '%delete%')
OR (UTF8(payload) ILIKE '%bcdedit%' AND (UTF8(payload) ILIKE '%recoveryenabled%' OR UTF8(payload) ILIKE '%bootstatuspolicy%'))
OR (UTF8(payload) ILIKE '%powershell%' AND (UTF8(payload) ILIKE '%Delete-ShadowCopy%' OR UTF8(payload) ILIKE '%Win32_ShadowCopy%'))
OR UTF8(payload) ILIKE '%psexec.exe%'
OR UTF8(payload) ILIKE '%paexec.exe%'
OR UTF8(payload) ILIKE '%remcom.exe%'
OR (
(UTF8(payload) ILIKE '%\sc.exe%' OR UTF8(payload) ILIKE '%sc.exe%')
AND (UTF8(payload) ILIKE '%stop%' OR UTF8(payload) ILIKE '%delete%')
AND (UTF8(payload) ILIKE '%WinDefend%' OR UTF8(payload) ILIKE '%SentinelAgent%' OR UTF8(payload) ILIKE '%CSFalconService%')
)
OR (
UTF8(payload) ILIKE '%taskkill%'
AND (UTF8(payload) ILIKE '%msmpeng%' OR UTF8(payload) ILIKE '%mssense%'
OR UTF8(payload) ILIKE '%csagent%' OR UTF8(payload) ILIKE '%sentinelagent%')
)
)
AND starttime > NOW() - 86400000
ORDER BY RiskScore DESC, starttime DESC
LIMIT 500 Detects ransomware pre-deployment staging in QRadar AQL by querying Windows Security Event Log (EID 4688) and Microsoft Sysmon (EID 1) process creation events via payload string matching. Risk-scored CASE logic categorises matches into ShadowCopyDeletion_CRITICAL (RiskScore 100), DefenseImpairment_HIGH (90), and RemoteExecTool_HIGH (80) to enable SOC triage by severity tier. LOGSOURCETYPEID 12 = Windows Security, 232 = Sysmon, 261 = Windows System. Searches last 24 hours.
Data Sources
Required Tables
False Positives & Tuning
- Backup software agents (Veeam, Commvault, Windows Server Backup) that invoke vssadmin to delete aged shadow copies during scheduled backup retention enforcement on backup servers
- Authorized remote administration via PsExec or PAExec by helpdesk and sysadmin teams during maintenance windows, software rollouts, or post-incident remediation tasks across managed endpoints
- Endpoint security platform migrations where operations engineers use sc.exe to stop and remove incumbent AV or EDR services before deploying a replacement — common during quarterly tooling refresh cycles
Other platforms for THREAT-Ransomware-StagingIndicators
Testing Methodology
Validate this detection against 2 adversary techniques from Atomic Red Team. Each test below lists the behaviour to exercise and the telemetry you should expect to see. Executable commands and cleanup steps are available with Pro.
- Test 1Shadow Copy Deletion via vssadmin (Ransomware Staging Simulation)
Expected signal: Sysmon Event ID 1: vssadmin.exe process creation with 'delete shadows' in command line. Security Event ID 4688 if command line auditing enabled.
- Test 2Windows Defender Disable via PowerShell
Expected signal: Sysmon Event ID 1: powershell.exe with DisableRealtimeMonitoring in command line. Windows Defender event log records protection disabled.
References (6)
- https://www.ncsc.gov.uk/news/uk-organisations-warned-about-ransomware-escalation
- https://www.cisa.gov/stopransomware/akira-ransomware
- https://www.cisa.gov/stopransomware/black-basta
- https://attack.mitre.org/techniques/T1490/
- https://attack.mitre.org/techniques/T1562/001/
- https://github.com/redcanaryco/atomic-red-team/blob/master/atomics/T1490/T1490.md
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