Files with "infect" or "low" in the name are often part of malware testing or actual malicious payloads.
If you need to work with .7z files safely, follow these standard practices: How to Safely Extract lowinfect.7z
: Use the List command or option to view filenames before extraction to spot suspicious executables. Creating Your Own Archives Encrypting and decrypting archives with 7-Zip - Red Hat Files with "infect" or "low" in the name