Suspicious Osascript Muting System Volume via BANSHEE Infostealer

ATT&CK techniques

Execution

Recon
Resource Dev
Initial Access
Execution
- T1059.002AppleScript
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects osascript executing an AppleScript command that mutes the system output volume which is an anti-analysis behavior performed by the BANSHEE macOS infostealer to hide audible feedback during execution. Adversaries silence the host so credential and data theft proceed without alerting the user.

Reporting behind it

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Suspicious Osascript Muting System Volume via BANSHEE Infostealer

Pivot detection · T1059.002 · 9 related

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