Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
938 detections
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Detects potential local privilege escalation via Windows ALPC (Advanced Local Procedure Call) heap-based buffer overflow by identifying a non-SYSTEM Chrome process tree spawning child processes with SYSTEM privileges. The rule specifically monitors for suspicious child binaries or paths characteristic of exploit payloads while excluding legitimate Chrome update and crash handler processes.
Detects suspicious activities originating from CrowdStrike Falcon remediation processes (e.g., CSFalconService.exe, CSFalconContainer.exe). The rule identifies two distinct patterns: either a file operation (delete, modify, rename, quarantine, or restore) followed within 2 minutes by the loading of an unsigned or non-standard DLL, or the spawning of an elevated SYSTEM process from a non-SYSTEM parent process. This behavior is indicative of potential LPE (Local Privilege Escalation) abuse via the Falcon remediation engine, often referred to as FalconFlank-style exploitation.
Detects suspicious activities originating from CrowdStrike Falcon remediation processes (e.g., CSFalconService.exe, CSFalconContainer.exe). The rule identifies two distinct patterns: either a file operation (delete, modify, rename, quarantine, or restore) followed within 2 minutes by the loading of an unsigned or non-standard DLL, or the spawning of an elevated SYSTEM process from a non-SYSTEM parent process. This behavior is indicative of potential LPE (Local Privilege Escalation) abuse via the Falcon remediation engine, often referred to as FalconFlank-style exploitation.
Detects a DLL file being created directly under C:\Windows\System32 by a process running at less than System integrity (not SYSTEM/TrustedInstaller). Legitimate System32 DLL writes are performed by installers or the OS itself running with SYSTEM privileges; a standard-user or low/medium-integrity process writing a new DLL into this protected path is consistent with the HardBreacher/SolidSnake local privilege-escalation exploit chain. Scoped on protected-directory + non-privileged-writer, not on filename, to generalize to renamed variants.
Detects behavioral indicators consistent with local privilege escalation targeting Windows ALPC subsystem vulnerabilities (CVE-2026-85880). The rule correlates: 1) Unsigned or low-prevalence processes loading sensitive ALPC-related DLLs (rpcss.dll, ntdll.dll), 2) Subsequent crashes or restarts of critical ALPC-handling system components (lsass.exe, RPCSS, wuauserv), and 3) The generation of a new SYSTEM-level process by a parent that was not previously running as SYSTEM within a short temporal window.
Detects the creation, modification, or renaming of unsigned executable files (.exe, .dll, .sys, .efi) within critical Windows system directories (System32, SysWOW64, drivers, boot). The rule excludes activity triggered by known trusted OS update processes, such as TrustedInstaller or Windows Update services, and optionally flags occurrences outside defined maintenance windows.
Detects instances where WerFault.exe or WerMgr.exe, running with SYSTEM privileges, loads a DLL file from the Windows\System32 directory that was created within 10 minutes of the image load event. This behavior is indicative of potential DLL side-loading or hijack techniques used to achieve privilege escalation.
Detects instances where a database role initially possessing only REPLICATION privileges is elevated to a SUPERUSER role, which represents a significant escalation of privilege within a PostgreSQL environment.
Detects the creation, modification, or renaming of unsigned executable files (.exe, .dll, .sys, .efi) within critical Windows system directories (System32, SysWOW64, drivers, boot). The rule excludes activity triggered by known trusted OS update processes, such as TrustedInstaller or Windows Update services, and optionally flags occurrences outside defined maintenance windows.
Detects rapid deletion and creation cycles of the WD_SCAN object manager link, a behavioral pattern associated with a Time-of-Check-to-Time-of-Use (TOCTOU) exploit chain targeting Windows Defender (referenced as CVE-2026-69414). The rule monitors for at least three cycle events occurring within a 5-second window, specifically involving the 'WD_SCAN' object identifier.
Detects attempts by non-privileged (non-PROXY_ADMIN) API keys to modify pass-through routes in LiteLLM via configuration update endpoints. This activity is indicative of exploitation of CVE-2026-35029, which allows unauthenticated or low-privilege users to bypass configuration restrictions.
Detects attempts by non-privileged (non-PROXY_ADMIN) API keys to modify pass-through routes in LiteLLM via configuration update endpoints. This activity is indicative of exploitation of CVE-2026-35029, which allows unauthenticated or low-privilege users to bypass configuration restrictions.
Detects attempts by non-privileged (non-PROXY_ADMIN) API keys to modify pass-through routes in LiteLLM via configuration update endpoints. This activity is indicative of exploitation of CVE-2026-35029, which allows unauthenticated or low-privilege users to bypass configuration restrictions.
Detects suspected exploitation of CVE-2026-81963, an Elevation of Privilege vulnerability in the Windows Update stack. The rule monitors for the creation of reparse points, junctions, or symbolic links within update staging paths by Windows Update processes, followed by either the spawning of suspicious child processes or unauthorized file writes/renames outside of expected directories, which are indicative of a privileged link-following exploit.
Detects a command shell (cmd.exe, powershell.exe, powershell_ise.exe, pwsh.exe) created with a SYSTEM SID whose immediate parent process is a POSITIVELY IDENTIFIED non-SYSTEM account running at Low/Medium integrity. Excludes known-benign SYSTEM-spawning binaries and blank-parent scheduled-task/service noise confirmed via live telemetry and attached evidence logs, and drops the prior TokenElevationTypeFull branch which mostly matched routine UAC-elevated admin activity rather than an actual SYSTEM token.
Detects the loading or usage of the malicious driver 'DCRCVDrv.sys' associated with the ClearFake crypto stealer campaign, which uses a Bring-Your-Own-Vulnerable-Driver (BYOVD) technique to interact with the device path '\Device\DCRCVDRV_U' to terminate or impair EDR and security tools.
Detects KATARU IoT malware samples embedding the DirtyFrag (CVE-2026-43284) Linux local privilege escalation exploit copied from public PoC code, as part of a chained LPE attempt targeting root shell spawning
Detects rapid, repeated invocation of Microsoft Defender remediation processes (mpcmdrun.exe, MsMpEng.exe) occurring in conjunction with suspicious file write or rename operations in System32. This pattern is characteristic of a Time-of-Check to Time-of-Use (TOCTOU) race condition, where an attacker attempts to exploit the timing gap between Defender's detection and remediation actions to replace a file with a malicious version.
Detects the creation of Object Manager symbolic links that redirect the Windows Defender 'WD_SCAN' object to a loopback UNC share path. This behavior is indicative of a symlink exploitation technique (ShieldCrash/CVE-2026-69414) used to manipulate Windows Defender or associated scan operations by redirecting them to an adversary-controlled or loopback-hosted target.
Detects the creation of Object Manager symbolic links that redirect the Windows Defender 'WD_SCAN' object to a loopback UNC share path. This behavior is indicative of a symlink exploitation technique (ShieldCrash/CVE-2026-69414) used to manipulate Windows Defender or associated scan operations by redirecting them to an adversary-controlled or loopback-hosted target.
Detects rapid deletion and creation cycles of the WD_SCAN object manager link, a behavioral pattern associated with a Time-of-Check-to-Time-of-Use (TOCTOU) exploit chain targeting Windows Defender (referenced as CVE-2026-69414). The rule monitors for at least three cycle events occurring within a 5-second window, specifically involving the 'WD_SCAN' object identifier.
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