Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the execution or presence of AnyDesk.exe within directories containing 'UBP-Asset' that are outside of known, legitimate installation paths. This behavior often indicates an adversary attempting to use remote access software for persistent access or command and control, commonly disguised within unconventional directories.
Detects the execution or presence of AnyDesk.exe within directories containing 'UBP-Asset' that are outside of known, legitimate installation paths. This behavior often indicates an adversary attempting to use remote access software for persistent access or command and control, commonly disguised within unconventional directories.
Detects the handshake process of the frpc (Fast Reverse Proxy Client), which is associated with the RatHat malware family, attempting to register a reverse tunnel for command and control purposes.
Detects unauthorized child processes spawned by ScreenConnect client binaries. The rule specifically looks for files created or modified within 60 seconds prior to execution, which is indicative of attackers leveraging an authentication bypass vulnerability (CVE-2026-84869) to transfer and execute malicious payloads via an active remote access session without requiring additional user interaction or authentication.
Detects network activity associated with the 'RatHat' Android malware, specifically identifying attempts to retrieve tunnel configuration, deployment confirmation, and the initial reverse tunnel handshake using the fatedier/frp (Fast Reverse Proxy) tool.
This rule detects the execution of NetSupport Manager related files, specifically 'client32.exe', or the presence of 'NetSupport' or 'Manager.zip' in command lines. NetSupport is a legitimate remote administration tool that is frequently abused by adversaries to maintain persistence and remote control over compromised hosts.
Detects the execution of the AnyDesk installer when triggered by a process spawned from common web browsers. This pattern is often observed when users download and execute remote access software from the internet.
Detects the execution of known remote access and support tools on a host shortly after an email bombing or spam flood alert has been generated for the same user. This pattern is commonly associated with social engineering campaigns where attackers overwhelm a user's inbox to distract them while coercing them into running remote support software to 'resolve' the issue.
This rule detects a multi-stage attack chain targeting a single user within a 2-hour window. It identifies the combination of email bombing (a distraction technique), an incoming external or anonymous Teams call (social engineering channel), and the installation of common remote access tools (e.g., AnyDesk, TeamViewer) on the same host.
This rule detects a multi-stage attack chain targeting a single user within a 2-hour window. It identifies the combination of email bombing (a distraction technique), an incoming external or anonymous Teams call (social engineering channel), and the installation of common remote access tools (e.g., AnyDesk, TeamViewer) on the same host.
This rule detects potential unauthorized use of MeshAgent RMM software by correlating process execution events (mvtcs.exe, MeshAgent) with network traffic to specific IP addresses identified as associated with Settra command-and-control infrastructure. It specifically filters for MeshAgent activity and validates the threat by requiring an established network connection to known malicious endpoints.
This rule detects potential unauthorized use of MeshAgent RMM software by correlating process execution events (mvtcs.exe, MeshAgent) with network traffic to specific IP addresses identified as associated with Settra command-and-control infrastructure. It specifically filters for MeshAgent activity and validates the threat by requiring an established network connection to known malicious endpoints.
This rule detects the execution of known Remote Monitoring and Management (RMM) tools across the environment. RMM tools are frequently used by IT administrators for legitimate support, but are also commonly abused by threat actors to establish persistence and gain remote access to systems. The rule tracks the first instance of these processes appearing on any device within a 30-day window.
Detects instances where the ScreenConnect ClientService process initiates a child process that is not a recognized ScreenConnect binary. It further filters for child processes created shortly after a file has been created or modified by the ScreenConnect service, which is often indicative of an adversary using the remote access tool to drop and execute malicious payloads.
Detects unexpected child process execution spawned by the ScreenConnect ClientService. This activity is indicative of the exploitation of CVE-2026-84869, which allows for unauthorized file transfer and arbitrary code execution within the context of the remote support agent without requiring user interaction or confirmation.
Detects unauthorized or potentially malicious file transfer activity within ScreenConnect sessions. The rule flags file transfers occurring on vulnerable versions of ScreenConnect (prior to 26.6.5), transfers that bypass user confirmation prompts, or instances where files are transferred and subsequently executed.
Detects network handshake patterns associated with the Fast Reverse Proxy (FRP) client, specifically identifying outbound traffic containing identifiers used in common FRP reverse tunnel configurations. This behavior is indicative of unauthorized remote access tools or tunneling software establishing a connection to an external command-and-control server.
Detects the execution of the MeshCentral remote management agent (meshagent.exe) or processes masquerading as the agent using the known alias 'mvtcs.exe'. This rule identifies the start of these processes to detect unauthorized or potentially malicious remote management activity.
Detects the execution of common command-line and scripting tools initiated by ScreenConnect (ConnectWise) remote administration processes. This pattern often indicates unauthorized remote access, lateral movement, or post-compromise activity where legitimate administrative software is abused to run arbitrary commands.
Detects file creation, modification, or renaming events initiated by ScreenConnect (ClientService.exe or WindowsClient.exe) that are not accompanied by associated user confirmation, consent, or file transfer events. This can indicate an unauthorized or silent file manipulation by a remote actor using the ScreenConnect tool.
This rule detects potential unauthorized use of MeshAgent RMM software by correlating process execution events (mvtcs.exe, MeshAgent) with network traffic to specific IP addresses identified as associated with Settra command-and-control infrastructure. It specifically filters for MeshAgent activity and validates the threat by requiring an established network connection to known malicious endpoints.
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