Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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1
Detects potential lateral movement and persistence activities by identifying suspicious Windows service installations via event ID 7045. The rule flags services with suspicious names or paths (e.g., Temp folders, Public directory) and correlates them with incoming SMB connections (port 445) or services spawned directly by services.exe from suspicious locations, aggregated by host and remote IP.
Detects the execution of rclone.exe or a renamed rclone binary using common command-line arguments (copy, sync, config, --progress). Rclone is a popular tool for ransomware double-extortion, as it allows attackers to exfiltrate data to various cloud storage providers while blending into legitimate network traffic.
Detects potential lateral movement by monitoring for the creation of services associated with PsExec (e.g., PSEXESVC or ADMIN$ share usage), followed by a network connection over SMB (port 445) and the subsequent execution of the corresponding remote process.
Detects the execution of known Windows system binaries (rundll32, regsvr32, mshta, msiexec) with command-line arguments indicative of proxy execution or script-based attacks. The rule identifies patterns commonly associated with downloading or executing remote payloads, including the use of URLs, JavaScript, VBScript, or specific DLL exports designed to execute code indirectly or from a remote source.
Detects the Print Spooler service (spoolsv.exe) spawning a shell/script interpreter or rundll32.exe as a child process, or loading a DLL from a driver-store/temp/ProgramData path — the process-injection and arbitrary-DLL-load pattern characteristic of PrintNightmare (CVE-2021-34527) exploitation.
Detects Active Directory enumeration consistent with BloodHound/SharpHound collection: SharpHound.exe or PowerView cmdlet process/command-line signatures, matching PowerShell script block log content, and bursts of LDAP traffic (ports 389/636) from a single source to a domain controller.
Detects lateral movement patterns associated with PsExec or its variants. The rule correlates SMB administrative share access (ADMIN$ or IPC$), the subsequent installation of a service (often named PSEXESVC or using a temporary executable path), and the immediate execution of a command or shell (cmd.exe or powershell.exe) by that service.
Detects a sequence of events on a single device involving a remote MSI installation followed by PowerShell-based process elevation and administrative checks using fltmc.exe. This pattern is indicative of an attacker attempting to deploy malicious packages remotely and escalate privileges within the environment.
Detects the use of reg.exe or PowerShell to modify the WSL InstallLocation registry key via command-line arguments.
Legitimate modifications to this key are performed exclusively by the Windows Installer (msiexec.exe) during WSL package installation or update.
Manual use of reg.exe or PowerShell to set this value strongly indicates an attempt to redirect WSL execution to a malicious binary.
Legitimate modifications to this key are performed exclusively by the Windows Installer (msiexec.exe) during WSL package installation or update.
Manual use of reg.exe or PowerShell to set this value strongly indicates an attempt to redirect WSL execution to a malicious binary.
Detects the execution of the 'gitshot' binary, which is known to automatically create public repositories and release tags to host screenshots or screen recordings. This behavior can be abused by insiders or attackers to exfiltrate sensitive data outside of corporate control.
Detects execution of MeshAgent binaries when initiated by common scripting or application processes (e.g., java, sh, bash, python) or when displaying suspicious command-line patterns indicative of unauthorized remote access or download activity, particularly in environments like WebLogic or PeopleSoft.
This rule detects the execution of common Remote Monitoring and Management (RMM) and remote access tools when initiated from suspicious parent processes (such as browsers, office applications, or command-line interpreters), originating from common writeable directories (e.g., Temp, Downloads), or executed with command-line arguments indicative of silent/unattended installation. This behavior is often associated with initial access, persistence establishment, or unauthorized remote control of a system.
Detects activity associated with the MALFEX npm supply-chain campaign (also known as Overlord/movinlike). This rule performs a sweep for known malicious file hashes, suspicious process command lines, outbound network connections to malicious domains or IPs, and email communications from identified adversary-controlled accounts.
Detects the installation or execution of known MALFEX malicious packages via npm or Node.js, which are used as entry points for polyglot or disguised payload delivery.
This rule detects the execution of common tools and commands used to perform Kerberoasting, a technique where attackers request Kerberos service tickets for user accounts with Service Principal Names (SPNs) in order to perform offline brute-force attacks to recover plaintext credentials. The rule specifically monitors process creation events for known offensive security tools like Rubeus, as well as specific command-line arguments for 'setspn.exe' and various scripts that can be used to identify potential Kerberoasting targets.
Detects the use of legitimate Windows binaries (certutil.exe and bitsadmin.exe) to download files from remote URLs or perform encoding/decoding operations in suspicious directories (Temp, AppData). This activity is commonly used by adversaries for stage-one malware delivery or tool ingress.
Detects instances of rundll32.exe or regsvr32.exe executing from suspicious locations or with suspicious command-line arguments (e.g., URLs, JavaScript, or script file extensions) initiated by an unsigned process. This is a common technique used to proxy malicious code execution while evading security monitoring.
This rule detects common Cobalt Strike malleable profile named pipe creation events as well as network connections initiated by common LOLBins (Living Off the Land Binaries) that are unsigned, which is a common indicator of beaconing activity.
Detects the execution of script files with .js or .se extensions using wscript.exe or cscript.exe outside of standard system directories. This behavior is consistent with the More_eggs JScript backdoor, which has been utilized by the FIN6 threat group (also known as Skeleton Spider) to establish persistent backdoors for follow-on payload delivery.
Detects the installation or execution of common Remote Monitoring and Management (RMM) tools, including AnyDesk, ScreenConnect, and TeamViewer, by monitoring process creation events. This behavior is indicative of social-engineering-based intrusions by the Scattered Spider (UNC3944/Octo Tempest) threat actor, who often impersonates IT support staff to convince users to run these tools for unauthorized remote access.
Detects the execution of regsvr32.exe with command line arguments containing 'scrobj.dll' and '/i:http'. This behavior indicates the abuse of the Windows Registry Server utility to load a remote COM scriptlet, a technique frequently observed in TA505 adversary activity to execute malicious payloads, such as the Get2 downloader or SDBbot RAT.
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