Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the installation or execution of unauthorized Remote Monitoring and Management (RMM) tools such as MeshCentral, Atera, Teramind, AnyDesk, or AdaptixC2 artifacts on endpoints. It flags devices running multiple distinct RMM tools or featuring AdaptixC2.
Detects shell or downloader child processes (such as sh, bash, cmd.exe, powershell.exe, curl, or wget) spawned by common server application processes (such as Java, Ruby, Perl, or Exiftool), which may indicate Remote Code Execution (RCE) exploitation such as CVE-2021-26084, CVE-2023-22518, or CVE-2021-22205.
Detects behavior where a Node.js process spawns a command shell or interpreter (such as sh, bash, cmd.exe, or powershell.exe) executing suspicious commands indicative of remote code execution (RCE), reverse shells, or payload downloading, consistent with vulnerabilities like the Node.js decompression flaw CVE-2026-111497.
Detects potential Kerberoasting activity where a single account requests RC4-encrypted (0x17) Kerberos service tickets for multiple distinct service accounts within a one-hour window.
Detects exploitation attempts against CVE-2024-4577, a PHP-CGI argument injection vulnerability, by identifying soft-hyphen encoding (%AD) injected alongside PHP configuration options such as allow_url_include and auto_prepend_file=php://input in request URLs.
Detects suspicious post-exploitation activities, reconnaissance, and command execution originating from web server and PHP lineage processes, indicating potential webshell activity or compromised web applications.
Identifies Node.js processes that spawn potentially suspicious child processes, including operating system shells, command interpreters, scripting runtimes, and download utilities. This behaviour may indicate exploitation of a Node.js application resulting in arbitrary command execution, followed by payload retrieval or additional post-exploitation activity.
Detects abnormal PHP execution volume storms, process crashes handled by crash reporters (such as werfault.exe, apport, systemd-coredump), or application error events related to PHP, which may indicate denial of service attacks, exploitation attempts, or severe application instability.
Further than have the PHP software updated with the supported versions and take actions over the Exposed Devices,having the latest PHP version installed doesn't mean your web applications are actually using it. I would recommend a double check over IIS, Apache or other process that could be executing old PHP Versions even if the server has installed the newest ones, see example : https://lnkd.in/esrKn-FK
Detects Windows web/PHP worker processes (php.exe, php-cgi.exe,
apache.exe, httpd.exe, lsphp.exe, nginx.exe) spawning unexpected command shells
or download utilities. Exploitation of CVE-2026-109618 / CVE-2026-109619 in core
PHP grants unauthenticated RCE; the child process is the observable artifact since
the memory corruption leaves no trace in the PHP logs. mod_php deployments are
the highest-risk configuration.
apache.exe, httpd.exe, lsphp.exe, nginx.exe) spawning unexpected command shells
or download utilities. Exploitation of CVE-2026-109618 / CVE-2026-109619 in core
PHP grants unauthenticated RCE; the child process is the observable artifact since
the memory corruption leaves no trace in the PHP logs. mod_php deployments are
the highest-risk configuration.
Detects installation of a Windows service (Security EventID 4697)
named after known VirtualBox Guest Additions components (VBoxGuest, VBoxMouse, VBoxSF,
VBoxService, VBoxVideo, VBoxWDDM). Fires when either:
(a) the service binary is registered outside the legitimate VirtualBox install/driver
paths, or
(b) a driver-class component name (VBoxGuest/VBoxMouse/VBoxSF/VBoxVideo/VBoxWDDM) is
registered as a user-mode/own-process service instead of a kernel or file-system
driver — a structural mismatch that cannot occur with the genuine component and is
a strong indicator of name-based masquerading (T1036.005).
Adversaries reuse trusted VirtualBox names to blend malicious persistence into expected
guest-VM/EDR-noise telemetry.
named after known VirtualBox Guest Additions components (VBoxGuest, VBoxMouse, VBoxSF,
VBoxService, VBoxVideo, VBoxWDDM). Fires when either:
(a) the service binary is registered outside the legitimate VirtualBox install/driver
paths, or
(b) a driver-class component name (VBoxGuest/VBoxMouse/VBoxSF/VBoxVideo/VBoxWDDM) is
registered as a user-mode/own-process service instead of a kernel or file-system
driver — a structural mismatch that cannot occur with the genuine component and is
a strong indicator of name-based masquerading (T1036.005).
Adversaries reuse trusted VirtualBox names to blend malicious persistence into expected
guest-VM/EDR-noise telemetry.
Detects exploitation of the PHP2Shell RCE vulnerabilities in core PHP
(CVE-2026-109618 out-of-memory corruption and CVE-2026-109619 stale global state),
which allow unauthenticated remote code execution delivered through malicious
multipart uploads. Successful exploitation causes the PHP-FPM/Apache/httpd/lsphp
worker, typically running as www-data, to spawn a system shell (sh, bash, cmd,
powershell) or a download utility (curl, wget) to retrieve a second-stage payload.
A web server process spawning an interactive shell is a high-fidelity indicator of
web application compromise and should be investigated immediately.
(CVE-2026-109618 out-of-memory corruption and CVE-2026-109619 stale global state),
which allow unauthenticated remote code execution delivered through malicious
multipart uploads. Successful exploitation causes the PHP-FPM/Apache/httpd/lsphp
worker, typically running as www-data, to spawn a system shell (sh, bash, cmd,
powershell) or a download utility (curl, wget) to retrieve a second-stage payload.
A web server process spawning an interactive shell is a high-fidelity indicator of
web application compromise and should be investigated immediately.
Detects behavioral artifacts associated with Impacket remote execution tools (such as wmiexec, smbexec, and atexec) on target hosts using Microsoft Defender XDR process telemetry. It identifies command-line signatures spawned by system processes like WmiPrvSE.exe, services.exe, and svchost.exe.
Detects malicious file hashes, suspicious process executions involving Node.js/Bun running setup scripts, schtasks/powershell persistence monitoring tasks, and connections to known domains/RPC endpoints associated with threat activity. The query ran without errors in a live tenant.
Detects abnormal PHP execution volume storms, process crashes handled by crash reporters (such as werfault.exe, apport, systemd-coredump), or application error events related to PHP, which may indicate denial of service attacks, exploitation attempts, or severe application instability.
Correlates devices touched by known IoC IP scan waves with PHP software inventory, vulnerability management data for PHP CVEs, and active PHP process execution telemetry to identify vulnerable exposed web servers.
Detects follow-on staging activity typically associated with Quick Assist abuse where an archive is extracted from Downloads to an AppDataRoamingRB[0-9]+ directory via command shell and tar, followed closely by the execution of a runtime from that directory.
Detects command-line activity staging files using utilities like tar or mkdir into an AppData\Roaming\KB<digits> directory, followed shortly by the execution of a renamed Bun runtime (.js) or Java runtime (.java) from that same path.
Detects rclone-style copy operations from a file server share to an SFTP destination, including renamed binaries such as SearchApp.exe, by matching specific command-line arguments and parameters.
Detects multiple distinct discovery commands (such as ipconfig, tasklist, or system version registry queries) executed via cmd.exe spawned from a parent process located in an AppData Roaming KB directory within a 30-minute window.
Detects the Inisafe CrossWeb EX service (INISAFECrossWebEXSvc.exe) launching fsquirt.exe, which can indicate potential abuse of built-in Windows utilities following a malicious lure or script execution.
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