Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects the execution of AnyDesk within a 30-minute window of Microsoft Teams activity on the same device. This pattern is indicative of a vishing attack, where a malicious actor lures a victim into installing remote access software during a fake technical support session initiated via Teams.
This rule detects instances where the legitimate remote desktop application AnyDesk (AnyDesk.exe) acts as the parent process to spawn a Windows command shell (cmd.exe) or execute a batch script (.bat). This behavior is often indicative of unauthorized remote access or the execution of malicious payloads by adversaries leveraging remote support tools.
Detects the execution of common command-line or scripting interpreters (cmd, powershell, cscript, etc.) spawned by the ScreenConnect remote administration client. This is a common pattern used by attackers leveraging legitimate remote access tools for post-exploitation activities and lateral movement.
Detects Remote Desktop Protocol (RDP) traffic occurring over non-standard high ports (64350, 64330, 65535, 65111, 61256), which is indicative of SilkParasite C2 activity or potentially malicious lateral movement attempting to bypass standard port monitoring.
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 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.
This rule detects anomalous authentication behavior on SonicWall VPN appliances characterized by either multiple distinct source IP addresses for a single user or a high volume of failed authentication attempts followed by a successful login. These patterns are often indicative of credential stuffing or password spraying campaigns, such as those observed in Akira ransomware affiliate initial access activities.
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.
Detects the execution of AnyDesk shortly after a Microsoft Teams meeting or call initiation on the same host. This pattern is commonly observed in social engineering attacks where an adversary convinces a user to use remote access software during a live support or phishing call.
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.
Detects the execution of AnyDesk shortly after a Microsoft Teams meeting or call initiation on the same host. This pattern is commonly observed in social engineering attacks where an adversary convinces a user to use remote access software during a live support or phishing call.
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.
Detects a rapid, multi-stage intrusion sequence on a single host involving discovery, lateral movement, and high-volume file modifications. The rule identifies anomalous behavior where diverse reconnaissance and lateral movement commands are executed within a compressed timeframe, characteristic of automated or LLM-driven orchestration of ransomware operations.
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 login attempts to internet-exposed FortiGate SSL VPN or firewall management interfaces using suspicious, generic, or potentially leaked administrative account patterns such as fgt-*, FortiManager-*, or tech-support-*. These accounts typically suggest attempts to exploit default, hardcoded, or publicly shared credentials on network infrastructure.
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 high-frequency authentication attempts originating from ScreenConnect processes on a single host within a 15-minute window. This behavior is indicative of session hijacking or authentication bypass attempts targeting ScreenConnect, such as those associated with CVE-2026-84869.
This rule detects instances where PowerShell is used to download or execute remote monitoring and management (RMM) tools or remote access software binaries (e.g., AnyDesk, TeamViewer, Atera). This pattern is often indicative of an adversary attempting to establish persistent remote access to a compromised system after initial intrusion.
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