Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
936 detections
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This rule detects activities associated with 'Bring Your Own Vulnerable Driver' (BYOVD) attacks, including the loading of known vulnerable drivers, the installation or configuration of drivers via system services, and the execution of tools known to facilitate driver-based kernel manipulation.
This rule detects the 'Bring Your Own Vulnerable Driver' (BYOVD) technique by monitoring for the creation of new kernel-mode drivers in temporary locations (followed by an immediate registration as a service) that correlate with known vulnerable drivers. It checks file system events for driver drops and links them to service installation events (EventCode 7045) within a 5-minute window.
This rule detects suspicious activity related to the Netlogon service or the LSASS process. It triggers on Netlogon service events (5827, 5828, 5829) which may indicate insecure channel usage or service issues often associated with exploitation, and on Sysmon Event ID 1 where a process is spawned by lsass.exe under the SYSTEM user, a behavior frequently seen during credential dumping or privilege escalation attempts.
Detects accounts performing multiple sensitive operations, privilege assignments, or privileged service calls in a short timeframe, which may indicate account compromise, reconnaissance, or lateral movement.
Detects reconnaissance and exploit activity associated with the BUMSRAKETE exploit (CVE-2026-45257) targeting FreeBSD. The rule identifies system configuration checks of kernel parameters related to kTLS and mbuf external pages, as well as the execution of file permission manipulation commands often required to bypass immutable (schg) file flags during the exploitation process.
Detects indicators of the BUMSRAKETE FreeBSD kernel-level exploit (CVE-2026-45257). This rule monitors for exploit artifact file creation, malicious use of dd to overwrite SUID binaries for privilege escalation, kernel configuration enumeration via sysctl, spawning of shell processes with root UID from suid-related binaries, and kernel version fingerprinting.
Detects evidence of exploitation for CVE-2026-45257, a FreeBSD vulnerability that allows bypassing chflags schg immutable flags. The detection tracks the initial reconnaissance phase where unprivileged processes query the sysctl 'kern.ipc.mb_use_ext_pgs' followed by the creation of specific exploit restorer artifacts '/tmp/.lpe_orig' and '/tmp/.x'.
Detects reconnaissance and exploitation setup activities associated with CVE-2026-46331 (pedit COW). The rule identifies processes enumerating kernel versions via system files or commands, checking unprivileged user namespace capabilities, and configuring network traffic control (tc) filters with pedit actions, which are critical precursors to leveraging the pedit page cache corruption vulnerability.
Detects suspicious system calls by unprivileged users involving unshare, IPsec XFRM policy configuration, and kernel module loading. This specific sequence is used in the DirtyClone (CVE-2026-43503) exploit, which leverages local IPsec tunnels to perform page-cache corruption and modify sensitive system binaries in memory.
Detects exploitation of CVE-2026-20245 on Cisco Catalyst SD-WAN Manager, where a malicious CSV file is uploaded via the tenant-list workflow to trigger a script that injects a root-privileged account into system files.
Detects the use of 'docker cp' to copy files out of a container to the host filesystem. This rule identifies suspicious patterns that may exploit the path traversal vulnerability CVE-2026-43503, which allows an attacker to escape the intended destination directory on the host.
Detects the initialization of unprivileged user and network namespaces combined with specific IPsec tunnel configurations (xfrm/esp/veth). This sequence of operations is a known prerequisite for exploiting the DirtyClone (CVE-2026-43503) vulnerability, a Local Privilege Escalation (LPE) in the Linux kernel.
Detects creation of the Process Explorer drivers by processes other than Process Explorer (procexp) itself.
Hack tools or malware may use the Process Explorer driver to elevate privileges, drops it to disk for a few moments, runs a service using that driver and removes it afterwards.
Hack tools or malware may use the Process Explorer driver to elevate privileges, drops it to disk for a few moments, runs a service using that driver and removes it afterwards.
Detects the execution of 'unshare' with flags (such as --user/--net or CLONE_NEWUSER/CLONE_NEWNET) by unprivileged users. This behavior is indicative of attempts to gain CAP_NET_ADMIN capabilities within a new namespace, a necessary precursor to exploiting the pedit COW (CVE-2026-46331) vulnerability for privilege escalation.
Detects PHP processes reading both /proc/self/maps and /proc/self/mem within a short time window. This activity is indicative of an Address Space Layout Randomization (ASLR) bypass technique, specifically associated with exploits attempting to compute memory offsets for sensitive functions (e.g., zend_execute_internal, zif_system) to facilitate Remote Code Execution (RCE).
Detects anomalous activities associated with the SystemInformer (formerly Process Hacker) kernel driver service (phsvc), which is known to be leveraged for local privilege escalation (LPE). The rule identifies the execution of rundll32 with suspicious command line parameters, the spawning of SYSTEM-level child processes by the phsvc service context, and unauthorized access to the SiSvcApiPort named pipe, which is used for inter-process communication with the kernel driver.
Detects indicators of 'Bring Your Own Vulnerable Driver' (BYOVD) attacks or suspicious kernel driver installations. The rule monitors for known vulnerable driver files being written to disk, unauthorized creation of .sys files in temporary directories, the installation of new kernel driver services via System Event ID 7045 (referencing temp paths or known malicious drivers), and the use of the sc.exe utility to create services with a kernel driver type.
Detects a sequence of events where a non-root user attempts to manipulate kernel components (specifically involving xfrm/esp modules via ip or modprobe) followed immediately by a sudo or su command, suggesting an attempt to load malicious kernel modules or exploit kernel vulnerabilities to escalate privileges.
This rule detects potential privilege escalation activity associated with the abuse of CTFMON related objects (named pipes, symlinks, junctions) which may be used in conjunction with high-privilege operations (like SeDebugPrivilege or SeImpersonatePrivilege) to elevate access to SYSTEM. It correlates access events for CTF objects by processes (other than the legitimate ctfmon.exe) with subsequent sensitive privilege assignments within a short time window.
Detects the execution of known exploit binaries or the compilation of source files associated with the Linux PACKET_EDIT_MEME exploit (CVE-2026-46331). The rule monitors for specific binary names associated with the exploit, execution of these binaries from common staging directories (/tmp, /dev/shm, /run), and the use of GCC or CC compilers to build the exploit source files.
Detects unauthorized shells (bash, sh, dash, zsh) spawned as root from common setuid binaries (su, sudo, newgrp) by an unprivileged user. This behavior is indicative of the CVE-2026-46331 'pedit COW' vulnerability, where a local attacker performs page cache poisoning on a setuid binary to execute arbitrary code as root without disk modification.
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