Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the creation of a scheduled task intended to masquerade as 'MicrosoftEdgeUpdateTask' using either schtasks.exe or PowerShell. The rule specifically monitors for tasks being registered in AppData/Roaming directories, which is a common indicator of persistence by malicious actors attempting to mimic legitimate Microsoft Edge update processes.
Detects a suspicious sequence of command execution patterns characteristic of the Kothamine agent performing post-compromise system discovery. The rule triggers when multiple discovery commands (tasklist, ipconfig, taskkill) are executed by the same process instance within a 5-minute window, consistent with typical C2 behavior for reconnaissance.
Detects a suspicious sequence of command execution patterns characteristic of the Kothamine agent performing post-compromise system discovery. The rule triggers when multiple discovery commands (tasklist, ipconfig, taskkill) are executed by the same process instance within a 5-minute window, consistent with typical C2 behavior for reconnaissance.
Detects a suspicious sequence of command execution patterns characteristic of the Kothamine agent performing post-compromise system discovery. The rule triggers when multiple discovery commands (tasklist, ipconfig, taskkill) are executed by the same process instance within a 5-minute window, consistent with typical C2 behavior for reconnaissance.
Detects a suspicious sequence of command execution patterns characteristic of the Kothamine agent performing post-compromise system discovery. The rule triggers when multiple discovery commands (tasklist, ipconfig, taskkill) are executed by the same process instance within a 5-minute window, consistent with typical C2 behavior for reconnaissance.
Detects post-exploitation command execution originating from a compromised explorer.exe process. The rule identifies processes like cmd.exe, powershell.exe, or conhost.exe spawned by an explorer.exe instance that has previously loaded the malicious 'MicrosoftEdgeUpdateCore.dll' module, correlating this activity with the established 'tailcat.exe' command-and-control tunnel.
Detects post-exploitation command execution originating from a compromised explorer.exe process. The rule identifies processes like cmd.exe, powershell.exe, or conhost.exe spawned by an explorer.exe instance that has previously loaded the malicious 'MicrosoftEdgeUpdateCore.dll' module, correlating this activity with the established 'tailcat.exe' command-and-control tunnel.
Detects post-exploitation command execution originating from a compromised explorer.exe process. The rule identifies processes like cmd.exe, powershell.exe, or conhost.exe spawned by an explorer.exe instance that has previously loaded the malicious 'MicrosoftEdgeUpdateCore.dll' module, correlating this activity with the established 'tailcat.exe' command-and-control tunnel.
Detects post-exploitation command execution originating from a compromised explorer.exe process. The rule identifies processes like cmd.exe, powershell.exe, or conhost.exe spawned by an explorer.exe instance that has previously loaded the malicious 'MicrosoftEdgeUpdateCore.dll' module, correlating this activity with the established 'tailcat.exe' command-and-control tunnel.
Detects scenarios where common download utilities are used to fetch a file from the internet, followed by the immediate execution or loading of that same file within a 10-minute window, indicative of an Ingress Tool Transfer followed by execution.
Detects anomalous AI agent behavior where the agent ingests untrusted external content (e.g., tool outputs, RAG retrievals, or web fetches) and subsequently invokes high-risk or sensitive capabilities (such as shell execution, secret reading, or unauthorized network calls) within the same session. This pattern is indicative of an indirect prompt injection attack attempting to leverage the agent's internal tool-calling mechanisms for unauthorized actions.
Detects anomalous AI agent behavior where the agent ingests untrusted external content (e.g., tool outputs, RAG retrievals, or web fetches) and subsequently invokes high-risk or sensitive capabilities (such as shell execution, secret reading, or unauthorized network calls) within the same session. This pattern is indicative of an indirect prompt injection attack attempting to leverage the agent's internal tool-calling mechanisms for unauthorized actions.
Detects the execution of destructive SQL commands (e.g., DROP, TRUNCATE, mass DELETE) via common command-line database clients. These patterns are often observed when threat actors attempt to destroy forensic evidence or interrupt database availability immediately following unauthorized data exfiltration.
Detects the execution of the Graphalgo RAT second-stage payload. The rule identifies the spawning of a detached 'go run .' process, which performs an ephemeral key exchange using a hardcoded public key before C2 establishment. It also correlates this activity with parent processes common in software build environments (npm, terraform, go) to differentiate malicious staging from developer activity.
Detects the 'ClickFix' technique where a user is socially engineered into copying a malicious command to their clipboard and pasting it into the Windows Run dialog (Win+R). The rule monitors for powershell.exe spawned by explorer.exe containing specific social engineering keywords or typical fileless download-execute patterns like 'irm', 'iex', or 'Invoke-RestMethod'.
This rule detects the suspicious use of signed Windows binaries (rundll32.exe, regsvr32.exe, mshta.exe, msiexec.exe) to execute remote content via URLs or scripts, or when triggered by common office applications and browsers. This behavior is often indicative of living-off-the-land (LotL) techniques used for download/execution of payloads or bypassing security controls.
Detects the creation of new Windows services using sc.exe or PowerShell where the binary path is located in common user-writable or temporary directories (e.g., Temp, AppData, ProgramData), or where the service name mimics legitimate Windows system services, a technique often used for persistence or lateral movement (e.g., PsExec).
Detects the use of legitimate Windows binaries (LOLBins) certutil.exe and bitsadmin.exe for suspicious activities such as downloading files via URL or decoding encoded files. This rule explicitly excludes known legitimate administrative activity originating from Microsoft Configuration Manager (SCCM).
Detects the execution of known Living-off-the-Land Binaries (LOLBins) such as mshta, certutil, regsvr32, rundll32, and msiexec, where the command-line arguments contain suspicious patterns indicative of script execution or remote file fetching. These behaviors are consistent with T1218 (System Binary Proxy Execution) to bypass security controls by utilizing trusted, signed binaries to execute malicious code.
This rule detects potential lateral movement via WMI by identifying two distinct suspicious behaviors: WmiPrvSE.exe spawning unexpected child processes (excluding common legitimate processes) or the usage of wmic.exe and PowerShell cmdlets (Invoke-WmiMethod, Invoke-CimMethod) to execute processes on remote systems, as indicated by command line arguments specifying target nodes or computer names.
Detects unauthorized or suspicious use of Windows Management Instrumentation (WMI) for lateral movement and remote code execution. The rule monitors for common WMI exploitation vectors, including the use of wmic.exe for process creation, PowerShell or C# invocations of WMI/CIM methods (such as Win32_Process Create), WMI event subscription registration for persistence, and the execution of mofcomp.exe.
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