Suspicious Browser Login Data Copied to Temp File via type Command

ATT&CK techniques

Cred Access

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1555.003Credentials from Web Browsers
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects use of the cmd type command to copy a browser Login Data credential store into a temporary file. In SocGholish activity the stolen store was redirected into a rad prefixed tmp file for later DPAPI decryption. Copying the credential database is a precursor to bulk password theft from the endpoint.

Reporting behind it

Related detections9 linkedT1555.003 — drag to rearrange

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Suspicious Access to Chrome Encrypted Preference MAC Registry Values (via registry_set)

Malicious SessionGopher Credential Extraction via PowerShell (via ps_script)

Suspicious Termination of Telegram Desktop Prior to Session Theft

Suspicious Browser Login Data Copied to Temp File via type Command

Pivot detection · T1555.003 · 9 related

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

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