Suspicious Executable Written to User Documents Subfolder (via file_event)

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1564.001Hidden Files and Directories
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects an executable being dropped into a subfolder of a user Documents directory, matching BundleBot behaviour of hiding its payload under a randomly named Documents folder. Executables rarely originate here through normal use, so writes of this kind warrant inspection for stealer staging.

Reporting behind it

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Suspicious Executable Written to User Documents Subfolder (via file_event)

Pivot detection · T1564.001 · 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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