Unusually Long Command Line
The following analytic detects unusually long command lines, which may indicate malicious activity. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on the length of command lines…
Description
The following analytic detects unusually long command lines, which may indicate malicious activity. It leverages data from Endpoint Detection and Response (EDR) agents, focusing on the length of command lines executed on hosts. This behavior is significant because attackers often use obfuscated or complex command lines to evade detection and execute malicious payloads. If confirmed malicious, this activity could lead to data theft, ransomware deployment, or further system compromise. Analysts should investigate the source and content of the command line, inspect relevant artifacts, and review concurrent processes to identify potential threats.
Detection logic
Detection requirements
- Log source category
- crowdstrike_processrollup2sysmon_eventid_1windows_event_log_security_4688
Known benign triggers
- Some legitimate applications start with long command lines.
MITRE ATT&CK mappings
Not mapped to ATT&CK.
No references are available for this detection.
From the source
- At source
- Open at source
- Upstream identifier
- c77162d3-f93c-45cc-80c8-22f6a4264e7f
- Tagged by the source as
- Possible Backdoor Activity Associated With MUDCARP Espionage CampaignsRansomwareSuspicious Command-Line ExecutionsUnusual ProcessesEndpointendpointSplunk CloudSplunk EnterpriseSplunk Enterprise Securityendpoint
Licence
- Published under
- Apache License 2.0Read the licence
- Attribution
- Required
- Obtained under
- Apache-2.0Read the origin licence
Authorship
- Written by
- Published
- Aug 26, 2026
- Version
- 1