Danny Y
@zendannyyTrusted contributorCompletionist
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375 detections
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Hunting rule for Atomic Red Team T1090.001 test "Connection Proxy" (Proxy: Internal Proxy). Correlate with additional signals before alerting.
Hunting rule for Atomic Red Team T1090.001 test "Connection Proxy" (Proxy: Internal Proxy). Correlate with additional signals before alerting.
Detects fileless Linux malware execution patterns that run payloads from anonymous memory files (memfd_create) or inherited file descriptors under /proc/self/fd without touching disk. Used by Linux backdoors and miners to evade filesystem-based detection.
Detects attackers creating transient systemd units via systemd-run to persist malware or
reverse shells outside normal unit files. Linux malware families including cryptominers and
botnets use --remain-after-exit and custom unit names under /tmp or /dev/shm to survive
logout while evading static service file inspection.
reverse shells outside normal unit files. Linux malware families including cryptominers and
botnets use --remain-after-exit and custom unit names under /tmp or /dev/shm to survive
logout while evading static service file inspection.
Detects reads of HKLM\SYSTEM\CurrentControlSet\Control\SystemStartOptions, the value that stores boot parameters (e.g. NOEXECUTE=OPTIN vs SAFEBOOT:MINIMAL). Ransomware including Snatch and Qilin query this key to determine whether the host is already in Safe Mode before forcing a reboot and encrypting with AV/EDR unloaded.
Treat as a high-interest hunting lead when paired within minutes with Safe Mode staging:
bcdedit /set safeboot, reg add under SafeBoot\Minimal or SafeBoot\Network, or
shutdown /r.
Treat as a high-interest hunting lead when paired within minutes with Safe Mode staging:
bcdedit /set safeboot, reg add under SafeBoot\Minimal or SafeBoot\Network, or
shutdown /r.
Hunting rule for T1222 "Enable Local and Remote Symbolic Links via reg.exe". No public in-the-wild intel reference available; correlate before alerting.
Hunting rule for nmap used for internal network discovery.
Legitimate vulnerability management and pentests also run nmap; prioritize hits when the source is a server or workload not in your scanner inventory, the parent is an interactive shell or script dropped, or the event chains with
tunneling (chisel, proxychains), or lateral movement.
Strongest signals: RFC1918 subnet sweeps, proxychains-wrapped
-sT/-Pn scans, and full-port sweeps across private ranges.
Legitimate vulnerability management and pentests also run nmap; prioritize hits when the source is a server or workload not in your scanner inventory, the parent is an interactive shell or script dropped, or the event chains with
tunneling (chisel, proxychains), or lateral movement.
Strongest signals: RFC1918 subnet sweeps, proxychains-wrapped
-sT/-Pn scans, and full-port sweeps across private ranges.
Hunting rule loosely modeled after Atomic Red Team T1112 test "Disable Windows Change Password Feature". No public in-the-wild intel reference available; correlate before alerting.
Hunting rule loosely modeled after Atomic Red Team T1112 test "Disable Windows Task Manager application". No public in-the-wild intel reference available; correlate before alerting.
Hunting rule based off of T1112 technique "Modify Registry of Local Machine - cmd". No public in-the-wild intel reference available; correlate before alerting.
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