Suspicious BoryptGrab Infostealer Staging Directory (via file_event)

ATT&CK techniques

Cred Access → Collection

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
- T1555.003Credentials from Web Browsers
Discovery
Lateral Movement
Collection
- T1005Data from Local System
C2
Exfiltration
Impact

What it detects

This rule detects creation of files within the Filegraber or decrypt_browser staging directories. The BoryptGrab-lineage infostealer wrote harvested browser data and logs to these folders, retaining the misspelled Filegraber directory name.

Reporting behind it

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Suspicious BoryptGrab Infostealer Staging Directory (via file_event)

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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