Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

40,063 detections

This rule detects potential unauthorized or suspicious installation of an RMM (Remote Monitoring and Management) agent on a Windows host. It flags cases where a process performs multiple suspicious actions within a 24-hour window, specifically combining the installation or starting of a service related to an RMM agent, the creation of a Windows Firewall rule for the RMM agent executable, and/or the creation of log events related to the installer.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects files matching known SHA256 hashes of the masqueraded MSP360 RMM v2.5.0.67 installer and associated ScreenConnect/utility payloads used in phishing-to-dual-RMM campaigns
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects files matching known SHA256 hashes of the masqueraded MSP360 RMM v2.5.0.67 installer and associated ScreenConnect/utility payloads used in phishing-to-dual-RMM campaigns
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects files matching known SHA256 hashes of the masqueraded MSP360 RMM v2.5.0.67 installer and associated ScreenConnect/utility payloads used in phishing-to-dual-RMM campaigns
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
This rule detects instances where the Faronics Deploy Agent process initiates the installation or download of ScreenConnect remote access software via PowerShell or the Windows Installer (msiexec.exe). This pattern is often indicative of authorized RMM deployment, but it is also a common tactic for adversaries to establish persistent remote access to endpoints.
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Arnold Chan@slaz
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Hunters
1 month ago
001
This rule detects instances where the Faronics Deploy Agent process initiates the installation or download of ScreenConnect remote access software via PowerShell or the Windows Installer (msiexec.exe). This pattern is often indicative of authorized RMM deployment, but it is also a common tactic for adversaries to establish persistent remote access to endpoints.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
This rule detects instances where the Faronics Deploy Agent process initiates the installation or download of ScreenConnect remote access software via PowerShell or the Windows Installer (msiexec.exe). This pattern is often indicative of authorized RMM deployment, but it is also a common tactic for adversaries to establish persistent remote access to endpoints.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects the download of a masqueraded MSP360 RMM v2.5.0.67 installer to the Downloads folder. The rule identifies files matching specific naming conventions, including generated GUIDs, or known malicious hashes, originating from common cloud storage providers often abused by threat actors.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
This rule detects a suspicious sequence of events where a process named RMM.Agent.exe executes a PowerShell command to download and install 'ClientSetup.msi' via msiexec.exe, followed closely by the execution of a ScreenConnect client process. This chain of activity is consistent with unauthorized or potentially malicious deployment of ScreenConnect (ConnectWise Control) for persistent remote access.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
This rule detects a suspicious sequence of events where a process named RMM.Agent.exe executes a PowerShell command to download and install 'ClientSetup.msi' via msiexec.exe, followed closely by the execution of a ScreenConnect client process. This chain of activity is consistent with unauthorized or potentially malicious deployment of ScreenConnect (ConnectWise Control) for persistent remote access.
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects the execution of known browser credential harvesting tools (WebBrowserPassView, WebBrowserBookmarksView, or WS_Password variants) from ScreenConnect temporary directories. This behavior often indicates post-compromise activity where an adversary uses an existing Remote Monitoring and Management (RMM) session to extract credentials from browsers.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
The following analytic identifies `node.exe` directly executing a single `.js` script located in the same directory it was launched from, where that directory is an unusual location such as a user profile, PerfLogs, ProgramData, or Temp folder.
Legitimate Node.js application, module, and package manager directories are excluded.
This pattern is commonly associated with malware loaders and second-stage payloads that leverage the Node.js runtime to execute JavaScript outside of a typical development or application context.
Splunk Security@SplunkSecurity
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Splunk Security Content
2 months ago
3012
Detects msiexec.exe being executed with a remote HTTP(S) URL argument that includes a token-based query parameter. This pattern is characteristic of ClickFix-style social engineering attacks where a user is tricked into manually executing a command to download and run a malicious MSI file.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
2010
Detects the spawning of script interpreters or loaders by Visual Studio Code (Code.exe) shortly after a workspace is initialized, specifically looking for command-line arguments referencing .vscode or tasks.json. This behavior is consistent with exploitation techniques where a user accepts a 'Trust Workspace' prompt, allowing malicious tasks defined in a repository's .vscode folder to execute.
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Ibrahim Saud@tektrix
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Detections.ai Community
2 months ago
2010
This rule detects modifications to Group Policy Objects (GPOs) that are either explicitly marked as malicious based on known indicators (GUIDs or 'PAYLOAD' strings) or involve unauthorized modifications to domain-root or organizational unit GPO links. It monitors Active Directory security event logs for object changes.
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Arnold Chan@slaz
Defender - KQL
2 months ago
6012
Detects signs of the ClosedQuorum implant by correlating at least two redundant persistence mechanisms (Registry Run keys, Scheduled Tasks, WMI execution) on the same host within a 10-minute window. The rule focuses on artifacts originating from suspicious user-writable paths or unsigned binaries, while excluding known legitimate installation paths.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
007
This rule detects unauthorized or anomalous file modifications or creations to machine learning training datasets (e.g., fine-tuning data, training corpora) by users not belonging to the authorized data engineering group, occurring within one hour of a scheduled training or fine-tuning job execution. This behavioral pattern is indicative of potential data poisoning, where an adversary attempts to inject malicious data into the training set to bias or compromise the resulting model.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects the execution of 'rnpkeys.exe' originating from the 'C:\ProgramData\keyroll' directory, which is a non-standard location for executable files and may indicate malicious activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
Detects instances where 'rnpkeys.exe', residing within a 'keyroll' directory, initiates suspicious child processes or executes suspicious command lines. This includes triggering common scripting engines like PowerShell or cmd.exe, using execution policy bypass flags, or executing binaries from Temp directories, which are characteristic of malicious post-exploitation or persistence activities.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
103
Detects an outbound network connection initiated by 'rnpkeys.exe' when executing from a non-standard 'ProgramData\keyroll' directory. This behavior is associated with the early stages of a Command and Control (C2) registration sequence, where an encrypted loader initiates network contact before subsequent staged communication.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
Detects execution of staged payloads within the %TEMP% directory initiated by processes associated with the Sauron Loader (rnpkeys.exe or processes running from ProgramData\keyroll). The rule monitors for common living-off-the-land binaries (rundll32.exe, regsvr32.exe, msiexec.exe, cmd.exe, powershell.exe, wscript.exe) acting as task handlers for the loader.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
003
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