SnoozeGnat is a classic example of "Living off the Land" (LotL) tactics combined with timing-based evasion. To protect your environment:
Block .7z attachments at the mail gateway if not business-essential. SnoozeGnat.7z
Monitor for long-duration "sleep" processes that suddenly initiate external network connections. SnoozeGnat is a classic example of "Living off
: An obfuscated configuration file containing Command & Control (C2) server addresses and sleep timers (hence the name "Snooze"). Execution Chain: How it Works SnoozeGnat.7z
: A legitimate, digitally signed executable used for "DLL side-loading." By using a trusted binary, the attacker lowers the suspicion level of the initial process start.
: Creation of temporary .tmp files in the %AppData% directory that match the size of your system's ntdll.dll . Conclusion & Mitigation