.7z (a 7-Zip compressed archive), often protected with a password.
This and similar files are frequently found in "staging" directories such as: C:\Windows\Temp\ C:\Users\Public\ C:\Perflogs\ . Forensic Indicators SS-Bet-001_s.7z
Security professionals monitor for the execution of commands like 7z.exe a -p {REDACTED} c:\windows\temp\SS-Bet-001_s.7z . Because the file name often follows specific patterns or remains consistent across different victims, its presence is a high-confidence indicator of a compromise. Mitigations Because the file name often follows specific patterns
is a specific compressed archive file identified by international cybersecurity agencies as an artifact associated with Volt Typhoon , a state-sponsored cyber actor based in the People's Republic of China (PRC). Overview of Activity The actor uses the 7z
Restrict the use of administrator accounts and audit any use of built-in Windows tools for non-administrative tasks.
The actor uses the 7z.exe utility to compress and password-protect stolen data before exfiltrating it from the victim's network.