Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects file artifacts referencing OtterCandy malware, which combines OtterCookie and RATatouille RAT capabilities, associated with WaterPlum/Contagious Interview campaign
Detects file artifacts referencing OtterCandy malware, which combines OtterCookie and RATatouille RAT capabilities, associated with WaterPlum/Contagious Interview campaign
Detects the malicious OIC_Invitation_General_Official.lnk sample used as the entrypoint for PlugX infection chain
This rule detects modifications to the Windows hosts file by unauthorized processes. The hosts file is often targeted by adversaries to redirect network traffic, intercept communications, or prevent access to security-related websites.
Detects unauthorized processes attempting to access browser credential database files such as Login Data for Chromium-based browsers or logins.json and key4.db for Firefox. The rule filters out known browser processes to isolate potential credential harvesting or exfiltration activity.
This rule monitors for suspicious process execution patterns that suggest system tampering, security tool evasion, or data concealment. It detects activities such as clearing event logs, modifying Windows Defender preferences (exclusions/real-time monitoring), creating suspicious scheduled tasks, deleting volume shadow copies, and using PowerShell for credential or system state manipulation.
Detects when ScreenConnect client processes (ClientService.exe or WindowsClient.exe) spawn child processes that are not part of the standard ScreenConnect application suite. This behavior is indicative of unauthorized use of remote access tools for command execution or lateral movement.
Detects execution of PowerShell or CMD initiated by the Kimsuky GitPower loader. The rule identifies suspicious command-line artifacts including excessive character padding (leading spaces), extremely long command lines, and the presence of a hardcoded, unique base64 decoding variable ('$VIUSBvejbawf') associated with this specific malware family.
Detects the Kimsuky second-stage payload test.bef_fri which masquerades as an RTF file via a falsified RTF header before header repair and decompression
Detects the execution of PowerShell with specific command-line arguments (-NonInteractive, -NoProfile, -Command) often used by the Bird Agent backdoor or similar malicious scripts to execute code silently without user intervention or profile configuration.
Detects potential exploitation attempts against Microsoft Exchange Server, specifically targeting the ECP (Exchange Control Panel) through VIEWSTATE parameter tampering related to CVE-2020-0688, and correlates this with suspicious behavior in the w3wp.exe process, such as unauthorized module loading (e.g., clr.dll, system.web.dll) and abnormal child process creation which may indicate the deployment of in-memory backdoors like GhostContainer.
Detects suspicious process execution spawned by ScreenConnect client processes, which may indicate abuse of remote access sessions for arbitrary command execution. This includes both direct child processes of ScreenConnect client binaries and execution of binaries staged within known ScreenConnect working and temporary directories.
Detects the execution of Mimikatz or the use of specific Mimikatz command-line arguments intended to extract credentials from LSASS memory, a common technique for credential harvesting during post-exploitation activities.
Detects unauthorized file write operations performed by ScreenConnect client or service processes into client/transfer directories. This activity is indicative of exploitation attempts, specifically CVE-2026-84869, which allows for unauthorized file transfers and potential remote code execution via active ScreenConnect sessions without user confirmation.
This rule detects the presence or execution of known files 'winfsp-x64.dll' or 'DukeQt.dll' when located in suspicious, user-writable directories such as AppData, Temp, or ProgramData, while excluding standard system or program installation paths.
Detects in-memory execution and stack-spoofing activities associated with the SparroWocky BOF loader (RunCOFF). It monitors for suspicious remote thread creation (EventCode 8), process access with highly permissive access masks (EventCode 10), and the loading of specific suspect DLLs (EventCode 7) that are indicative of this technique.
This rule detects activity associated with the exploitation of PaperCut vulnerabilities. It looks for connections to known malicious IP addresses, the presence of specific credential harvesting tools, reconnaissance commands (whoami, tasklist) executed by the PaperCut application (pc-app.exe), suspicious PowerShell downloads of AnyDesk, and unauthorized access to PaperCut configuration files or log files containing known exploit strings.
Detects uncommon or suspicious child processes spawning from a WSL process. This could indicate an attempt to evade parent/child relationship detections or persistence attempts via cron using WSL.
This rule detects the execution of PowerShell from a WScript or CScript parent process where the PowerShell script also performs suspicious actions such as reading environment variables (specifically those following a 'Kv\d+' pattern) and accessing files using 'IO.File::ReadAllText'. This behavior is indicative of malicious scripts, such as those used by specific malware or post-exploitation tools, attempting to retrieve configuration data or credentials stored in environment variables.
Detects unauthorized access to sensitive browser files, specifically 'Login Data' (passwords) and 'Cookies', by processes other than authorized browser binaries (Chrome or Edge). This is a common indicator of credential harvesting or session hijacking attempts by malware or malicious actors.
Detects the presence of the known vulnerable gdrv.sys driver on disk. This driver is frequently utilized in Bring Your Own Vulnerable Driver (BYOVD) attacks to gain kernel-mode access, which is often leveraged to disable endpoint security products or escalate privileges.
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