What is Astaroth?
Astaroth (S0373) is a Trojan that acts as both a downloader and an infostealer. It is known for its sophisticated evasion methods, such as code obfuscation and anti-analysis checks, which make it difficult for security tools to detect.
Astaroth malware uses a multi-stage infection process to download payloads that harvest sensitive data, like system credentials. Its persistence mechanisms ensure it remains active even after a reboot.
How to Defend Against Astaroth?
Defending against Astaroth malware requires detecting its evasive techniques and blocking its multi-stage infection process.
- Implement robust email filtering to intercept malicious attachments that serve as the initial infection vector.
- Keep systems and software patched to reduce the vulnerabilities exploited during its infection chain.
- Deploy endpoint detection and antivirus to identify and block the malware’s execution, even with code obfuscation.
- Use network detection (NDR) and integrated threat intelligence from a platform like Lumu Maltiverse to block its C2 communications and payload downloads.
- Use network segmentation to limit the impact of a breach and prevent Astaroth malware from spreading laterally.
