Suspicious Chromium Browser Launch With Covert Media Capture Flags via DRILLAPP (via process_creation)

ATT&CK techniques

Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
- T1113Screen Capture
- T1123Audio Capture
C2
Exfiltration
Impact

What it detects

This rule detects an Edge or Chromium browser started with flags that auto-approve and silently select media and screen capture sources, the covert audio and screen recording setup used by the DRILLAPP backdoor. Legitimate browser sessions do not suppress the media capture prompt in this way.

Reporting behind it

Related detections9 linkedT1113 — drag to rearrange

Suspicious Keylogger Capture Database Written to macOS Temp Directory

Suspicious Screen and Audio Capture via Problem Steps Recorder

Suspicious REMCOS Screenshot Capture File via file_event

Suspicious Keylog and Screenshot Files in windows-cache Directory (OtterCookie)

Suspicious RDP Shadow Session Started - Native (via rdp)

Malicious RDP Shadow Session Configuration Enabled - Registry (via registry_event)

Suspicious GoGRPC Screen Capture Log File Creation (via file_event)

Suspicious Screen Capture via PowerShell Graphics API (via process_creation)

Malicious RDP Shadow Session Started - Command (via process_creation)

Suspicious Chromium Browser Launch With Covert Media Capture Flags via DRILLAPP (via process_creation)

Pivot detection · T1113 · 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 →