Windows Office Product Spawned Uncommon Process
The following analytic detects a Microsoft Office product spawning uncommon processes. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process creation events where Office…
Description
The following analytic detects a Microsoft Office product spawning uncommon processes. This detection leverages data from Endpoint Detection and Response (EDR) agents, focusing on process creation events where Office applications are the parent process. This activity is significant as it may indicate an attempt of a malicious macro execution or exploitation of an unknown vulnerability in an office product, in order to bypass security controls. If confirmed malicious, this behavior could allow an attacker to execute arbitrary code, potentially leading to system compromise, data exfiltration, or further lateral movement within the network.
Detection logic
Detection requirements
- Platform
- LinuxmacOSWindows
The rule states no platform. This is derived from the ATT&CK technique it maps to.
- Log source category
- crowdstrike_processrollup2sysmon_eventid_1windows_event_log_security_4688
Known benign triggers
- False positives should be limited, however filter as needed.
MITRE ATT&CK mappings
0 exclusive techniques.This is coverage no other published rule has; it is not this rule's total technique count.
References
From the source
- At source
- Open at source
- Upstream identifier
- 55d8741c-fa32-4692-8109-410304961eb8
- Tagged by the source as
- AgentTeslaAPT37 Rustonotto and FadeStealerAzorultCompromised Windows HostCVE-2023-21716 Word RTF Heap CorruptionCVE-2023-36884 Office and Windows HTML RCE VulnerabilityDarkCrystal RATFIN7IcedIDMuddyWaterNjRATPlugXQakbotRemcosSpearphishing AttachmentsTrickbotWarzone RATEndpointendpointSplunk 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