Suspicious Cmd Using Curl to Download and Execute Payload (via process_creation)

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059.003Windows Command Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects a cmd.exe command line that sets a small console mode, downloads a file with curl, and immediately starts it. This pattern matches loaders built with the MisterioLNK open-source builder.

Reporting behind it

Related detections9 linkedT1105 — drag to rearrange

Suspicious curl Spawning Script Host for Latrodectus Delivery

Malicious SCMBanker ClickFix Payload Fetch via Curl Piped to Cmd

Suspicious Aimmy Cheat Loader Executing Renamed LuaJIT Launcher via process_creation

Windows Process Tree for Axios npm Supply-Chain RAT Droppers (cscript, curl, PowerShell)

Windows Process Execution: Suspicious cmd.exe Command-Line Combinations (Pikabot-like)

Windows cmd.exe Command Line with URL and %AppData% Indicators

Suspicious Remote Access Tool User Agent in Outbound Traffic via Proxy

Malicious Hidden Virtual Machine Launched via QEMU for Persistence

Suspicious node.exe Execution Spawned by PowerShell

Suspicious Cmd Using Curl to Download and Execute Payload (via process_creation)

Pivot detection · T1105 · 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 →