Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects potential persistence mechanisms and suspicious execution patterns associated with the ChainScript malware. It specifically monitors for the creation of scheduled tasks using PowerShell with indicators like 'StreamServiceSharedBridge.ps1' or 'ComponentTask33Agent', and the execution of VBScript-based agents via wscript.exe. It also flags tasks configured with specific execution time limits often associated with this malware's behavior.
This rule detects potential persistence mechanisms and suspicious execution patterns associated with the ChainScript malware. It specifically monitors for the creation of scheduled tasks using PowerShell with indicators like 'StreamServiceSharedBridge.ps1' or 'ComponentTask33Agent', and the execution of VBScript-based agents via wscript.exe. It also flags tasks configured with specific execution time limits often associated with this malware's behavior.
This rule detects the execution, file presence, or driver loading associated with 'EDRKiller' and 'WarsawKiller', which are malicious tools used to terminate or disable endpoint security products.
Detects the execution of netscan.exe, a common network scanning tool often used by adversaries to enumerate network resources, hosts, and services within a compromised environment.
Detects DragonForce ransomware behavior where the binary is copied to a staging directory (typically C:\Users\Public\) and subsequently registered as a persistent, one-time execution scheduled task with SYSTEM privileges using COM interfaces or schtasks.exe.
Detects the use of bcdedit.exe to configure the boot environment to start Windows in 'safeboot' mode with networking enabled. Adversaries may use this to bypass security controls that only run in normal boot mode or to facilitate persistent access with minimal system interference.
Detects the use of bcdedit.exe to modify the boot configuration to enable Safe Mode with Networking. This is often used by adversaries to bypass security controls or to prepare a system for activities while in a state where many security products may not load or function.
Detects processes executed with specific command line arguments often associated with malicious tools or malware, such as mutex bypass flags, logging configuration, or arbitrary size parameters that are not related to help or usage documentation.
Detects the use of bcdedit.exe to configure the boot environment to start Windows in 'Safe Mode with Networking'. This behavior is commonly observed as an evasion technique used by threat actors, including Akira ransomware affiliates, to bypass EDR protections during pre-ransomware staging activities.
Detects potential abuse of rundll32.exe to execute commands or functions, particularly those involving references to 'WindowsUpdate.log' or direct execution with ordinal identifiers ('#1'). This rule also monitors file operations involving 'WindowsUpdate.log' initiated by common script interpreters like powershell.exe, cmd.exe, or rundll32.exe, which is often associated with obfuscated techniques to execute malicious payloads or bypass security controls.
This rule detects the use of 'taskkill.exe' to terminate critical services, including security software (MsMpEng.exe), database processes (sql.exe, oracle.exe, sqlservr.exe), and common user applications (outlook.exe, onedrive.exe). This behavior is characteristic of the DragonForce ransomware, which disables protective services and applications before encryption to minimize interference and ensure successful file locking.
Detects the execution of SoftPerfect Network Scanner (netscan.exe), a tool frequently utilized by threat actors such as Ransom Busters for internal network reconnaissance and host discovery activities prior to lateral movement or data exfiltration.
Detects the modification of boot configuration data (BCD) using bcdedit to enable 'Safe Mode with Networking' on the next reboot. Adversaries, including Akira ransomware affiliates, use this technique to bypass endpoint detection and response (EDR) solutions by ensuring they do not start when the system boots in a restricted safe mode.
Detects the creation of a local user account using the hardcoded 'Numlock!123' password, a characteristic artifact associated with Ransom Busters threat group operations. The rule monitors command-line activity from net.exe or net1.exe to identify attempts to add users with this specific, known malicious credential.
This rule detects activities related to the loading or registration of the 'NvFsFilter' driver (nvfsflt64.sys). It monitors for command-line attempts to interact with services (using sc.exe, reg.exe, or services.exe), registry modifications involving the NvFsFilter service, and the actual loading of the nvfsflt64.sys file. This is intended to identify potential persistence mechanisms or the deployment of potentially unauthorized or malicious drivers.
Detects the use of administrative utilities 'wmic.exe' and 'schtasks.exe' to execute commands or create scheduled tasks on remote systems, excluding local execution scenarios.
Detects the execution of the 'net user' command with the '/add' parameter using the hardcoded password 'Numlock!123'. This pattern is frequently observed as a persistence mechanism employed by threat actors during ransomware operations to establish unauthorized administrative access.
Detects the use of bcdedit.exe to modify boot configuration data to enable Safe Mode with Networking. This technique is used by Akira ransomware affiliates to potentially disable or impair EDR and other security tooling prior to deploying the ransomware payload.
Detects the use of bcdedit.exe to modify boot configuration data to enable Safe Mode with Networking. This technique is used by Akira ransomware affiliates to potentially disable or impair EDR and other security tooling prior to deploying the ransomware payload.
Detects the execution of ServiceModelReg.exe following parent process activity involving vsdbg.dll/vsdbg.exe, coupled with cross-process access indicators consistent with COM Elevation Moniker UAC bypass and potential process hollowing. This pattern is associated with the PUROSANGUE loader chain used to execute malicious code within a high-integrity process context.
Detects the execution of ServiceModelReg.exe following parent process activity involving vsdbg.dll/vsdbg.exe, coupled with cross-process access indicators consistent with COM Elevation Moniker UAC bypass and potential process hollowing. This pattern is associated with the PUROSANGUE loader chain used to execute malicious code within a high-integrity process context.
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