Detections

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

20,501 detections

Detects suspicious service creation or registry modifications related to wscl.exe that mimic persistence mechanisms.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects suspicious service creation or registry modifications related to wscl.exe that mimic persistence mechanisms.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects persistence activities initiated by Postgres-related processes or users involving scheduled tasks and system services.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
000
Detects suspicious PowerShell execution spawned by common development tools or shell environments like node, npm, or WSL. The rule evaluates the process lineage and scores the command line arguments for characteristics commonly used by malicious payloads, such as hidden execution, bypass flags, network download activity, or temporary file access, which are indicative of software supply chain attacks or automated malicious script execution.
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Tim Peck@timpeck
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Detections.ai Community
2 months ago
24053
Detects inline execution of PowerShell code from a file
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 months ago
003
This rule detects suspicious PowerShell execution that attempts to download files from the internet using the Invoke-WebRequest cmdlet. It specifically looks for PowerShell processes launched with hidden and execution policy bypass flags, coupled with specific hardcoded malicious URL patterns associated with a known campaign (NotaFiscal/nfe_valid_access_key_2026_secure).
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects the Silver Fox HVNC malware dropper initiating browser instances via the command line to access known malicious C2 domains or infrastructure. The rule specifically monitors for known malicious binaries (UpdateAssistant.exe, AppUpdateHelper.exe, SysMaintenance.exe) launching browsers with suspicious command-line parameters associated with this campaign.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
Detects the creation of a shortcut file (.lnk) in the Windows Startup directory by the 'UpdateAssistant.exe' process. The rule specifically looks for evidence of a masquerading attempt where the shortcut appears to be an application update helper but potentially references or exhibits characteristics of being linked to a notepad execution, suggesting persistence via shortcut file manipulation.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
Detects the creation of a shortcut file (.lnk) in the Windows Startup directory by the 'UpdateAssistant.exe' process. The rule specifically looks for evidence of a masquerading attempt where the shortcut appears to be an application update helper but potentially references or exhibits characteristics of being linked to a notepad execution, suggesting persistence via shortcut file manipulation.
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects the execution of an executable file located within a randomly-generated, hex-like directory structure directly beneath the %AppData%\Roaming folder. This pattern is characteristic of the GoCaracal malware dropper used by the Dark Caracal threat group to evade detection by hiding executables in paths that mimic temporary or system-generated folder structures.
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Emiliano Mema@Nosalva
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Detections.ai Community
2 months ago
007
Detects Python processes executing common system and network enumeration tools (e.g., net.exe, tasklist.exe, dsquery, Get-ADUser). This activity is indicative of the SynkLoader system profiler module, used to size the victim environment for ransom-value estimation and lateral movement preparation.
Anitha A@aanitha
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Detections.ai Community
2 months ago
606
Detects instances where Faronics Core related processes (FaronicsCore.exe, NCService.exe, ScriptRunner.exe) spawn common system utilities (curl.exe, mshta.exe, msiexec.exe) often used for downloading or executing payloads. This pattern may indicate the abuse of legitimate management software to facilitate unauthorized activity or second-stage payload delivery.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
2 months ago
103
Detects the execution of an executable file located within the Windows Temp directory structure via the command prompt (cmd.exe). This pattern is commonly associated with the execution of downloaded payloads, droppers, or staged malware that are moved to temporary directories to evade initial detection.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
This rule detects instances where LockAppHost.exe or a variation of it (likely used as a proxy) initiates processes or command-line arguments that interact with Windows services, scheduled tasks, or Windows Defender configurations. This behavior is indicative of an adversary attempting to disable security features, suppress Windows updates, or manipulate system services to evade detection.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
This rule detects instances where LockAppHost.exe or a variation of it (likely used as a proxy) initiates processes or command-line arguments that interact with Windows services, scheduled tasks, or Windows Defender configurations. This behavior is indicative of an adversary attempting to disable security features, suppress Windows updates, or manipulate system services to evade detection.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
This rule detects the creation of a scheduled task using 'schtasks.exe' where the task name matches commonly abused names such as 'WinUpdate.exe', 'SoftManager.exe', or 'LockAppHost.exe'. These names are frequently used by adversaries to masquerade as legitimate Windows processes to achieve persistence.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
Detects suspicious PowerShell invocation command parameters
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SigmaHQ Detections@sigmaHQ
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SigmaHQ
2 months ago
305
Detects suspicious executions of 'nslookup.exe' and 'svchost.exe' when triggered by the Windows LockAppHost process. This pattern is indicative of potential process injection or masquerading attempts by malicious actors using legitimate system processes as proxies for unauthorized activity.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
This rule detects potential cryptocurrency mining activity where known miner executables (specifically XMRig) or malicious scripts/processes are masquerading as or being spawned by 'LockAppHost.exe' or 'LockAppHost14a02b.exe'. It also monitors for subsequent attempts by these processes to terminate security-related tasks or establish persistence via registry run keys.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
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