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Potential Process Herpaderping Attempt

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Potential Process Herpaderping Attempt

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Identifies process execution followed by a file overwrite of an executable by the same parent process. This may indicate an evasion attempt to execute malicious code in a stealthy way.

Rule type: eql

Rule indices:

logs-endpoint.events.*
winlogbeat-*

Severity: high

Risk score: 73

Runs every: 5 minutes

Searches indices from: now-9m (Date Math format, see also Additional look-back time)

Maximum alerts per execution: 100

References:

https://github.com/jxy-s/herpaderping

Tags:

Elastic
Host
Windows
Threat Detection
Defense Evasion

Version: 1

Added (Elastic Stack release): 7.11.0

Rule authors: Elastic

Rule license: Elastic License

Rule query

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sequence with maxspan=5s [process where event.type == "start" and
not process.parent.executable :
"C:\\Windows\\SoftwareDistribution\\*.exe"] by host.id,
process.executable, process.parent.entity_id [file where event.type
== "change" and event.action == "overwrite" and file.extension ==
"exe"] by host.id, file.path, process.entity_id

Threat mapping

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Framework: MITRE ATT&CK^TM

Tactic:
- Name: Defense Evasion
- ID: TA0005
- Reference URL: https://attack.mitre.org/tactics/TA0005/
Technique:
- Name: Masquerading
- ID: T1036
- Reference URL: https://attack.mitre.org/techniques/T1036/

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