Suspicious Quick Assist Spawning Command Interpreter or Download Tooling via Process Creation

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059Command and Scripting Interpreter
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1219Remote Access Tools
Exfiltration
Impact

What it detects

This rule detects the Quick Assist remote assistance tool spawning a command interpreter or download utility, a technique used in social engineering attacks where operators abuse Quick Assist to run scripted downloads. Storm-1811 leveraged this to fetch Qakbot and Cobalt Strike leading to Black Basta ransomware, so a legitimate support binary launching cmd, PowerShell or curl warrants investigation.

Reporting behind it

Related detections9 linkedT1219 — drag to rearrange

Suspicious ScreenConnect Remote Access Binary Running Under a Renamed Executable

Malicious Silent AteraAgent RMM Installation via IntegratorLogin

Possible Remote Monitoring and Management Tool Abuse for Remote Access

Suspicious NetSupport Manager Client Executing From ProgramData via Process Creation (via process_creation)

Malicious Command Shell Spawned by SQL Server via Process Creation (via process_creation)

Suspicious Script Interpreter Spawned by Excel via DarkGate Lure

Suspicious AutoHotkey Script Execution from User Writable Path by DarkGate

Malicious PowerShell Download Cradle Spawned by Quick Assist

Suspicious AnyDesk Unattended Password Set via Piped Echo

Suspicious Quick Assist Spawning Command Interpreter or Download Tooling via Process Creation

Pivot detection · T1219 · 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 →