Sigma detection rules, expert-reviewed

macOS Atomic Stealer FileGrabber and curl POST to exfiltrate /tmp/out.zip

Alert on macOS command lines showing FileGrabber from /tmp or curl POST exfiltration with /tmp/out.zip.

macOS File Persistence from Atomic MacOS Stealer (helper file and LaunchDaemon plist)

Flags macOS file creations used as persistence artifacts: per-user .helper files and a specific LaunchDaemon plist.

Cisco ASA WebVPN Proxy GET Requests to MacTunnel and csvrloader Paths

Alerts on proxy-observed HTTP GET requests to specific Cisco ASA WebVPN exploit-related URI stems.

Windows ClickFix/FileFix Clipboard Phishing Leading to Suspicious mshta/powershell Command Execution

Alerts on explorer.exe child process launches with clipboard markers and anti-bot/CAPTCHA-related wording indicating ClickFix/FileFix execution.

Windows Network Connection Initiated by finger.exe

Alerts on Windows network connections started by finger.exe, an unusual utility that can support remote command retrieval.

Windows DNS Queries Triggered by finger.exe

Alerts on Windows DNS queries made by finger.exe, a rarely used utility that can be abused to fetch remote commands.

Windows: Suspicious Kerberos Ticket Requests from PowerShell Using KerberosRequestorSecurityToken

Flags PowerShell command lines that reference KerberosRequestorSecurityToken and .GetRequest() for suspicious Kerberos ticket requests.

Windows RDP Enable/Disable via Win32_TerminalServiceSetting WMI Tool Commands

Flags WMIC/PowerShell command lines that reference Win32_TerminalServiceSetting SetAllowTSConnections to change RDP.

Windows svchost.exe Uncommon Command-Line Parameter Process Creation

Alerts on Windows process starts of svchost.exe that include an uncommon -k parameter format, after excluding common and benign patterns.

Windows CMD for /f Tokens= with Recursive Dir Listing

Flags cmd.exe for /f loops using tokens= with recursive dir enumeration in the command line and parent.

Windows Registry: Suspicious Space-Padded TypedPaths Details String

Alerts on registry writes to TypedPaths url1 where Details includes “#” plus unusual Unicode space padding.

Windows Registry RunMRU Path with Suspicious Space Characters and Delimiter

Alerts on RunMRU registry updates containing '#' plus excessive unusual Unicode spaces that may conceal command text.

Windows Process Creation: Explorer Command Lines with Unicode Whitespace Padding and '#'

Alerts when Explorer spawns a process with command lines containing long Unicode whitespace padding followed by '#'.

Windows: Detect Advanced Installer PSF AI_STUBS Executables with OriginalFileName popupwrapper.exe

Flags Windows execution of Advanced Installer PSF AI_STUBS stubs where OriginalFileName equals popupwrapper.exe.

FortiGate SSL VPN Settings Edited

Flags FortiGate VPN SSL settings being edited, which may indicate changes to SSL VPN access or authentication configuration.