Linux Malware Delivered via Malicious RAR Filenames Evades Antivirus Detection
Linux Malware Delivered via Malicious RAR Filenames Evades Antivirus Detection — [https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg2VrTT9RQBJaptTjv
What’s new: A new Linux malware attack chain has been identified, utilizing phishing emails to deliver a backdoor called VShell. The malware is embedded in the filename of a malicious RAR archive, allowing it to evade traditional antivirus detection. The attack exploits command injection vulnerabilities in shell scripts, enabling arbitrary code execution when the filename is processed by the shell.
Who’s affected
Organizations and individuals using Linux systems, particularly those susceptible to phishing attacks, are at risk. The malware can target various architectures, including x86_64, i386, i686, armv7l, and aarch64.
What to do
- Implement strict email filtering to block phishing attempts.
- Educate users about the risks of opening unexpected email attachments.
- Regularly update and patch systems to mitigate vulnerabilities.
- Monitor for unusual shell command executions and file manipulations.
