Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
40,063 detections
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Detects the creation of a file named 'token.cmd' within the user's AppData\Roaming directory, followed immediately by the execution of that same file via 'cmd.exe'. The rule filters for specific file size characteristics to reduce noise.
Detects the creation of a file named 'token.cmd' within the user's AppData\Roaming directory, followed immediately by the execution of that same file via 'cmd.exe'. The rule filters for specific file size characteristics to reduce noise.
Detects the creation of a file named 'token.cmd' within the user's AppData\Roaming directory, followed immediately by the execution of that same file via 'cmd.exe'. The rule filters for specific file size characteristics to reduce noise.
Detects the creation of a file named 'token.cmd' within the user's AppData\Roaming directory, followed immediately by the execution of that same file via 'cmd.exe'. The rule filters for specific file size characteristics to reduce noise.
Detects the creation of a file named 'token.cmd' within the user's AppData\Roaming directory, followed immediately by the execution of that same file via 'cmd.exe'. The rule filters for specific file size characteristics to reduce noise.
Detects successful user logins to accounts with names containing support-related terminology such as 'IT Support', 'Help Desk', or 'IT Department'. These accounts are often highly privileged or sensitive targets for credential abuse.
Detects instances where the RemoteApp Gateway broker process (wkspbroker.exe) loads the 'radcui.dll' module from the 'AppData\Local\Microsoft\RemoteApp\Gateway' directory. This behavior, especially when accompanied by configuration artifacts like 'config.json' or 'comsrv.dat' in the same path, is indicative of potential DLL side-loading or application hijacking, as these components are typically expected to reside in system-protected directories rather than user-writable local paths.
Detects the execution of a specific batch file named 'KB85809588.bat', either directly or via the Windows Command Shell (cmd.exe) and Console Host (conhost.exe). This pattern is often indicative of malicious scripts or automated tasks executed as part of an attack chain.
Detects the modification of InProcServer32 registry keys within the user's Classes/CLSID hive to point to a file located in the AppData directory. This pattern is commonly used for COM hijacking to achieve persistence or execute arbitrary code under the user's context.
Detects the loading of radcui.dll by the WkspBroker.exe process when the DLL is located within a path associated with Microsoft RemoteApp Gateway, which is often indicative of DLL sideloading or execution hijacking of a legitimate process.
Detects modifications to the 'InProcServer32' registry key within HKCU\Software\Classes\CLSID. This activity, which involves pointing a CLSID to a library file located in non-standard user-writable directories (like AppData), is a common technique for COM object hijacking used to achieve persistence or code execution.
This rule detects activity associated with the 'Ghostcode' threat campaign by monitoring multiple telemetry sources. It identifies connections to known malicious IP addresses and domains, patterns consistent with phishing kit hosting, and specific URL structures used in credential harvesting or payload delivery. The rule correlates sign-in logs, device network events, DNS queries, and email telemetry to identify potential compromise.
Detects the Kimsuky APT-C-55 'Stella_Gary' attack chain, where PowerShell is used to download a JavaScript verification script from an external C2 (InfinityFree), followed by the execution of that script via cscript.exe in temporary directories. This behavior is used to bypass anti-bot mechanisms and retrieve secondary payloads from hardcoded C2 infrastructure.
Detects known malicious files associated with Kimsuky (APT-C-55) Stella_Gary attack chain by MD5 hash: OrionQuests-Setup.exe installer, guide.url.lnk, test.bef_fri, and backdoor payload component
Detects known malicious files associated with Kimsuky (APT-C-55) Stella_Gary attack chain by MD5 hash: OrionQuests-Setup.exe installer, guide.url.lnk, test.bef_fri, and backdoor payload component
Detects the loading of the Alinubx.sys (aka CcProtect.sys) kernel driver, often dropped as nvfsflt64.sys or registered as NvFsFilter, followed by a rapid, simultaneous termination of security product processes. This activity is indicative of a BYOVD (Bring Your Own Vulnerable Driver) attack chain where kernel-mode primitives are used to terminate EDR/AV processes.
Detects the loading of the Alinubx.sys (aka CcProtect.sys) kernel driver, often dropped as nvfsflt64.sys or registered as NvFsFilter, followed by a rapid, simultaneous termination of security product processes. This activity is indicative of a BYOVD (Bring Your Own Vulnerable Driver) attack chain where kernel-mode primitives are used to terminate EDR/AV processes.
This rule monitors for indicators of compromise (IOCs) associated with the Rapuncel/Cruciferra 'Bring Your Own Vulnerable Driver' (BYOVD) malware-as-a-service (MaaS) campaign. It detects malicious file hashes (associated with dropped binaries or drivers), connections to known malicious command-and-control (C2) IP addresses, and network requests to domains used by the infrastructure.
Hunts network, HTTP, and email-URL telemetry for known ARToken infrastructure (operator backend IPs and phishing/panel domains). Bounded to a 30-day lookback and tiers matches by confidence: domain hits are high-confidence (attacker-registered infrastructure), while IP hits are medium-confidence since the IPs sit on shared DigitalOcean hosting that can be reassigned to unrelated tenants once ARToken's infrastructure is taken down. Empty/unparsed indicator fields are excluded to avoid spurious matches in the HTTP event parsing branch. No known file hashes are associated with this intel.
This rule detects potential attempts to abuse a Trusted Domain Object (TDO) to traverse a one-way Active Directory trust. It identifies suspicious activities such as Kerberos ticket requests (AS-REQ/TGS-REQ) targeting trust accounts (inter-realm indicators) or DCSync-style replication requests targeting the TDO object to extract domain secrets.
Detects the use of the wevtutil.exe utility to clear the Microsoft-Windows-Defender/Operational event log, a technique used by adversaries to disrupt security monitoring and hide malicious activity.
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