Essential Insights
- Malicious actors can disguise process names by tampering with Linux and Windows process structures, evading detection through common process listings.
- Attackers exploit process name masquerading, such as modifying /proc/
/comm or the Windows PEB, to hide malicious activity from security tools. - While tools like eBPF-based Kunai can reveal real command lines, manipulated process names still pose a threat by concealing malware from surface-level monitoring.
Threats, Attack Techniques, and Targets
Malicious actors use process name masquerading to hide their malware on Linux systems. They replace or modify process names so they do not look suspicious to security analysts. This technique is part of the T1036 technique in the MITRE ATT&CK framework. Attackers often target systems where they want to avoid detection by security tools or analysts. They can change process names in different system locations, like in the /proc/
Impact, Security Implications, and Remediation Guidance
Process name masquerading can cause serious security issues. It makes it difficult to identify malicious processes quickly because they appear legitimate. Security tools that rely on process names may miss malware. This technique can help attackers hide from process listings and evade detection. Good detection methods include tools like Kunai, which can catch the real command line used to run processes. However, understanding that process names can be masked is essential for security teams. Remediation guidance should be obtained from the respective system vendor or security authority. Organizations should review their detection strategies and tools for their ability to detect process masquerading.
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