Phoenix
Sigma IntelligenceBeta
Back to Rules
Detectionhighexperimental

HackTool - Impacket File Indicators

Detects file creation events with filename patterns used by Impacket.

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
The DFIR Report, IrishDeathCreated Mon May 1903f4ca17-de95-428d-a75a-4ee78b047256windows
Log Source
WindowsFile Event
ProductWindows← raw: windows
CategoryFile Event← raw: file_event

Events for file system activity including creation, modification, and deletion.

Detection Logic
Detection Logic1 selector
detection:
    selection_names_re:
        TargetFilename|re: '\\sessionresume_[a-zA-Z]{8}$' # https://github.com/fortra/impacket/blob/ead516a1209742efc7ac550707a9304ba08681e9/impacket/examples/secretsdump.py#L1925C38-L1925C51
    condition: selection_names_re
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References
1
Resolving title…
thedfirreport.com
2
Resolving title…
github.com
MITRE ATT&CK
Related Rules
SimilarDetectionhigh

HackTool - Potential Remote Credential Dumping Activity Via CrackMapExec Or Impacket-Secretsdump

Detects default filenames output from the execution of CrackMapExec and Impacket-secretsdump against an endpoint.

Detects similar activity. Both rules may fire on overlapping events.

Rule Metadata
Rule ID
03f4ca17-de95-428d-a75a-4ee78b047256
Status
experimental
Level
high
Type
Detection
Created
Mon May 19
Author
The DFIR Report, IrishDeath
Path
rules/windows/file/file_event/file_event_win_impacket_file_indicators.yml
Raw Tags
attack.credential-accessattack.t1003.001
View on GitHub