Suspicious Security Product Process Termination via Named Utility

ATT&CK techniques

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects command-line termination of the Cylance security service process, observed when INC ransomware operators killed endpoint protection to evade defenses. The command references the CylanceSvc.exe process together with a kill or process-target flag. Disabling running security products is a precursor to unimpeded lateral movement and encryption.

Reporting behind it

Related detections9 linkedT1685 — drag to rearrange

Malicious ELAM Driver Disable via Bcdedit

Suspicious Windows Defender Exclusion Added via PowerShell Add-MpPreference

Suspicious Windows Defender Disabling via SystemSettingsAdminFlows

Windows Defender Exclusion Path Added via Add-MpPreference

Suspicious Hosts File Modification to Block Security Vendors via file_event

Malicious Windows Defender Real-Time Protection Disabled via Registry

Malicious Vulnerable Driver Load via TfSysMon.sys BYOVD (via driver_load)

Suspicious Defendnot Antivirus Disabling Component Dropped in ProgramData (via file_event)

Malicious Removal of Defender Safe Mode Service Registration via Process Creation

Suspicious Security Product Process Termination via Named Utility

Pivot detection · T1685 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

Full detection rule

Unlock this rule to view and copy it

The detection logic is included with a plan. Everything else — context, mappings and implementation details — stays free on this page.

Sign in for 3 free unlocks

Signing in gives you 3 unlocks to spend on any rule in the library. No card, and they do not expire.

Also included

Unlocked rules convert on this page — to Splunk SPL or Splunk — Raw Index SPL or Microsoft Sentinel KQL or Microsoft Sentinel ASIM ASIM KQL or Microsoft Defender XDR KQL or Elastic Security KQL or Elastic Security Lucene or Elastic Security ES|QL or CrowdStrike Falcon CQL or SentinelOne PowerQuery or Palo Alto Cortex XDR XQL or Carbon Black Cloud Platform Search or Carbon Black EDR Process Search or Google Security Operations UDM Search or IBM QRadar AQL or Sumo Logic Cloud SIEM Rules expression or Rapid7 InsightIDR LEQL or Graylog Search or OpenSearch Lucene or OpenSearch PPL PPL or Grafana Loki LogQL or SQLite SQL or Zircolite SQLite — with the log-source profile the engine picked, the field map it used, and everything it could not express. Converting a rule you have unlocked costs no further credit.

See it run on a free rule →Convert your own rule →