Detectionhightest
Capsh Shell Invocation - Linux
Detects the use of the "capsh" utility to invoke a shell.
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Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.
Launch
Li Ling, Andy Parkidomo, Robert Rakowski, Blake Hartstein (Bloomberg L.P.)Created Mon Sep 02db1ac3be-f606-4e3a-89e0-9607cbe6b98alinux
Log Source
LinuxProcess Creation
ProductLinux← raw: linux
CategoryProcess Creation← raw: process_creation
Events generated when a new process is spawned on the system. Covers command-line arguments, parent/child relationships, and process metadata.
Detection Logic
Detection Logic1 selector
detection:
selection:
Image|endswith: '/capsh'
CommandLine|endswith: ' --'
condition: selectionFalse Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Tactics
Rule Metadata
Rule ID
db1ac3be-f606-4e3a-89e0-9607cbe6b98a
Status
test
Level
high
Type
Detection
Created
Mon Sep 02
Path
rules/linux/process_creation/proc_creation_lnx_capsh_shell_invocation.yml
Raw Tags
attack.executionattack.t1059