Sigma detection rules, expert-reviewed

Windows PsExec Remote Execution Creates PSEXEC-*.key File Artefact

Alerts on creation of PsExec key files in C:\Windows\PSEXEC-*.key, indicating remote execution activity.

Windows PowerShell module commandlet names matching known exploitation and post-exploitation tooling

Alerts on PowerShell module payloads containing commandlet/function names from known malicious exploitation and post-exploitation frameworks.

Windows driverquery.exe Process Execution Detection

Alerts on Windows executions of driverquery.exe (drvqry.exe) used to enumerate installed drivers, with parent-process exclusions to reduce duplicates.

Windows: driverquery.exe Usage for Installed Driver Recon

Alerts when driverquery.exe (drvqry.exe) is launched by script-based parent processes to enumerate installed drivers.

Windows Successful SMB Logon (Event ID 4624 Logon Type 3) From Public IPs

Flags successful Windows SMB (LogonType 3) logons from non-private, non-local source IP addresses.

Windows RDP Successful Logon (4624 LogonType 10) from Public IP

Alerts on successful RDP (LogonType 10) from a non-private, non-local source IP in Windows Security Event 4624.

Windows: Suspicious child processes spawned by ManageEngine ServiceDesk Plus (java.exe parent)

Alerts when ManageEngine ServiceDesk Java spawns common attacker tools like PowerShell, certutil, mshta, or wmic.

Windows Firewall Rules Deleted (Windows Defender Firewall) via Firewall-as Events

Alerts on Windows Defender Firewall configurations where all rules are deleted (Event 2033/2059), signaling potential defense impairment.

PowerShell Data Exfiltration Using Audio File (WAV BinaryWriter) on Windows

Alerts on PowerShell script blocks that appear to write data into an audio (WAV) file for potential exfiltration.

Windows DNS Client: DNS queries containing "ufile.io"

Alerts on Windows DNS Client queries where the queried name includes "ufile.io".

Windows DNS Client: MEGA userstorage subdomain DNS query (EventID 3008)

Detects Windows DNS client queries for MEGA userstorage subdomains by matching the query name string.

Windows DNS Client: Cobalt Strike DNS Beaconing Patterns via Suspicious Query Names

Alerts when Windows DNS client logs show Event ID 3008 DNS queries matching Cobalt Strike beacon patterns.

Windows DNS Client: DNS query for anonfiles.com domain

Alerts when Windows DNS client logs show a DNS query containing .anonfiles.com.

Windows AppX Packaging: Execute AppX with Suspicious Digital Signature Certificate

Alerts when AppX package execution/signature subject matches a known suspicious certificate in Windows telemetry.

Windows AppX Execution of Sysinternals Tools (procdump/psloglist/psexec/livekd/ADExplorer)

Flags execution of common Sysinternals binaries when launched through the Windows AppX runtime.