Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
This rule monitors for file, process, and image load events associated with a set of known malicious indicators (IOCs). It specifically flags potential DLL side-loading anomalies, such as 'Secur32.dll' being loaded by 'platform_experience_helper.exe' from non-system directories, or 'platform_experience_helper.exe' executing from locations outside the standard Google application directory.
This rule monitors for file, process, and image load events associated with a set of known malicious indicators (IOCs). It specifically flags potential DLL side-loading anomalies, such as 'Secur32.dll' being loaded by 'platform_experience_helper.exe' from non-system directories, or 'platform_experience_helper.exe' executing from locations outside the standard Google application directory.
Detects the spawning of cmd.exe from 7z.exe, which is characteristic of the GRAYRABBIT malware sideloading chain where 7z.exe is used to load malicious DLLs (e.g., boy.dll, core.dll) that subsequently initiate an interactive reverse shell.
Detects child processes spawned by 7z.exe when it is executed from the 'C:\Users\Public\Documents\' directory. This is consistent with the behavior of the GRAYRABBIT backdoor, where a trojanized 7z.dll or boy.dll is sideloaded into the 7z.exe process to facilitate silent arbitrary process execution.
This rule detects potential file obfuscation attempts where a file is renamed to include a colon followed by a 6 to 10 character suffix, characteristic of an NTFS Alternate Data Stream (ADS). It monitors for a specific pattern where a file is renamed to this format and followed by a file deletion or another rename of the same file within a 300-second window, which may indicate an adversary trying to hide content or bypass security controls.
This rule detects potential process injection or evasion attempts by correlating the allocation of memory with Read-Write-Execute (RWX) permissions followed by the execution of Windows Thread Pool APIs (CreateThreadpoolWork, SubmitThreadpoolWork, or WaitForThreadpoolWorkCallbacks). Attackers may use these APIs as a mechanism to execute malicious code within a thread, bypassing standard monitoring of traditional thread creation APIs.
Detects execution of the GRAYRABBIT loader (specifically 7z.exe from the Users\Public\Documents staging path) in environments exhibiting low process count activity (<= 50 processes). This behavior is consistent with anti-sandbox checks used by this loader to gate XOR key derivation for payload decryption.
This rule monitors for specific PowerShell command-line patterns often associated with malicious activity, including 'ClickFix' clipboard-paste lures (using iex/irm with sleep timers), evasion techniques involving pscustomobject/ScriptBlock, and WinHttp COM object usage for stage-2 payload fetching. These patterns are characteristic of adversary attempts to bypass security controls and download secondary implants.
Detects post-exploitation persistence artifacts on Windows endpoints consistent with abuse of CVE-2026-18577.
Detects SoftEther VPN bridge dropper/installer disguised as svchost.exe with masquerading MixedRealityOpen service, based on install script and dropped files (a.Bat, hamcore.se2, vpn_server.config)
This rule detects the use of 'mshta.exe' to execute a file from a remote location by inspecting the command line for 'http' protocols and a specific suspicious domain. Adversaries often abuse mshta.exe to proxy the execution of malicious HTML Application (HTA) files or scripts to bypass security controls.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
Detects instances where rundll32.exe is executed by a process named 'eld0.exe' residing in user-writable or temporary directories (e.g., Users, ProgramData, Temp, AppData). This behavior is characteristic of execution flow hijacking or malicious payload loading from suspicious file paths.
Detects instances where rundll32.exe is executed by a process named 'eld0.exe' residing in user-writable or temporary directories (e.g., Users, ProgramData, Temp, AppData). This behavior is characteristic of execution flow hijacking or malicious payload loading from suspicious file paths.
Detects instances where rundll32.exe is executed by a process named 'eld0.exe' residing in user-writable or temporary directories (e.g., Users, ProgramData, Temp, AppData). This behavior is characteristic of execution flow hijacking or malicious payload loading from suspicious file paths.
Detects the creation of a scheduled task named 'Windows Update ALPHV' using the schtasks.exe utility. This task is associated with the OpnKey ransomware, which uses this name to masquerade as a legitimate Windows Update task while running with SYSTEM privileges to maintain persistence.
Detects usage of the Windows API function GetUserObjectInformationW to inspect the current window station for specific strings, such as 'Service-0x'. This technique is often used by malware for environmental awareness, specifically to detect if it is running within a virtual machine or analysis sandbox by checking window station object attributes.
Detects the presence of PostgreSQL logical decoding output plugins (shared libraries) that export the '_PG_init' initialization function and contain strings indicative of unauthorized catalog modification, privilege escalation, or persistence attempts, often associated with PostGREShell-style attack vectors (CVE-2026-6471).
Detects PE binaries masquerading as Microsoft's Windows Update Assistant via forged VersionInfo metadata combined with an unsigned or invalid/unverified digital signature, associated with HVNC backdoor delivery
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