Banshee

Banshee is a sophisticated macOS infostealer that poses a significant threat to Apple users. It is designed to exfiltrate a wide range of sensitive information, including system data, login credentials, and, cryptocurrency wallets.

Symptoms

You might observe the following artifacts associated with this threat:

• Unexpected prompts requesting system passwords.
• Unusual activity in cryptocurrency wallets and browser extensions.
• Presence of unfamiliar files or scripts in the /tmp directory.

Technical Breakdown

Banshee is malware capable of collecting extensive data from the system, browsers, and cryptocurrency wallets. Despite its potentially dangerous capabilities, Banshee's lack of sophisticated obfuscation and the presence of debug information make it easier for analysts to reverse engineer. While Banshee Stealer is not overly complex in its design, its focus on macOS systems and the breadth of data it collects make it a significant threat that demands attention from the cybersecurity community.

Some of Banshee's capabilities include:

• Collecting system information, including software and hardware details.
• Stealing user passwords by prompting for credentials under false pretenses.
• Dumping keychain passwords, granting access to saved credentials.
• Exfiltrating browser data such as history, cookies, and login information from multiple browsers.
• Targeting cryptocurrency wallets and related browser extensions.

Next Steps

Kandji Endpoint Detection & Response (EDR) automatically removes detected threats when file monitoring is set to Protect.

While the malicious file is removed, it can leave behind artifacts that need to be cleaned manually.

In the future, avoid downloading and installing software from torrent sources or untrusted websites. Ensure that all applications are obtained from official and reputable sources to maintain system integrity and security.