Detections

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

1,234 detections

Detects persistence attempts via Windows Registry run keys and Startup folders. The rule identifies suspicious modifications to run/runonce registry keys involving common user-writable paths (e.g., Temp, AppData) or the execution of PowerShell commands with common obfuscation flags (e.g., -enc). Additionally, it detects the creation of executable files (.lnk, .ps1, .vbs, .bat) within user Startup folders.
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Ibrahim Saud@tektrix
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Detections.ai Community
28 days ago
000
Detects persistence attempts via Windows Registry run keys and Startup folders. The rule identifies suspicious modifications to run/runonce registry keys involving common user-writable paths (e.g., Temp, AppData) or the execution of PowerShell commands with common obfuscation flags (e.g., -enc). Additionally, it detects the creation of executable files (.lnk, .ps1, .vbs, .bat) within user Startup folders.
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Ibrahim Saud@tektrix
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Detections.ai Community
28 days ago
000
Detects unauthorized modification or creation of registry keys under HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot\ to maintain persistence for remote access/RMM tools during Safe Mode with Networking. This technique is used by Akira ransomware affiliates to evade EDR and security software.
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Ibrahim Saud@tektrix
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Detections.ai Community
28 days ago
000
Detects processes establishing persistence via Windows Registry 'Run' keys followed by frequent outbound network connections over non-standard ports. This behavior is consistent with the SystemBC/Coroxy SOCKS5 proxy backdoor often utilized by ransomware actors like Ryuk, Conti, BlackBasta, Play, and Rhysida.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
This rule detects the modification of Windows Registry Run keys, specifically targeting a value named 'MicrosoftUpdate' within the 'Run' registry path. This is a common persistence technique used by adversaries to ensure malicious programs or scripts automatically execute upon user logon by mimicking a legitimate system update process.
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Ankit Mehta@Secvyn
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Detections.ai Community
28 days ago
000
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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Detection & Hunting Community
1 month ago
003
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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Hunters
1 month ago
003
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
Defender - KQL
1 month ago
103
This rule monitors for coordinated persistence efforts by detecting the occurrence of at least two out of three specific persistence techniques (registry run key modification, scheduled task creation, or WMI-based script execution) on the same device within a 30-minute window. It explicitly filters out activities from signed binaries or those occurring in standard system/application directories, focusing on potentially malicious artifacts originating from user-writable locations.
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Arnold Chan@slaz
Defender - KQL
1 month ago
103
This rule monitors for coordinated persistence efforts by detecting the occurrence of at least two out of three specific persistence techniques (registry run key modification, scheduled task creation, or WMI-based script execution) on the same device within a 30-minute window. It explicitly filters out activities from signed binaries or those occurring in standard system/application directories, focusing on potentially malicious artifacts originating from user-writable locations.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
003
This rule monitors for coordinated persistence efforts by detecting the occurrence of at least two out of three specific persistence techniques (registry run key modification, scheduled task creation, or WMI-based script execution) on the same device within a 30-minute window. It explicitly filters out activities from signed binaries or those occurring in standard system/application directories, focusing on potentially malicious artifacts originating from user-writable locations.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
003
This rule detects the creation of potentially malicious script or executable files (.bat, .ps1, .exe, .vbs) within the Windows Startup folder. It triggers when these files are created by processes typically used for automation or development (dotnet, python) or processes utilizing specific semantic/download-related command lines. The rule further correlates this activity with the presence of PowerShell commands indicative of script downloading or code execution (e.g., IEX, DownloadString) by the same device within the same timeframe, suggesting persistent execution of potentially malicious code.
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Ishaan S@isrv
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Hunters
1 month ago
003
This rule detects the creation of potentially malicious script or executable files (.bat, .ps1, .exe, .vbs) within the Windows Startup folder. It triggers when these files are created by processes typically used for automation or development (dotnet, python) or processes utilizing specific semantic/download-related command lines. The rule further correlates this activity with the presence of PowerShell commands indicative of script downloading or code execution (e.g., IEX, DownloadString) by the same device within the same timeframe, suggesting persistent execution of potentially malicious code.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
403
Detects the creation or modification of registry run keys under HKCU or HKEY_USERS that use the value 'WindowsDefender' to point to an executable located within the AppData directory. This is a common technique used by malware to establish persistence while masquerading as a legitimate security component.
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Ankit Mehta@Secvyn
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SlimKQL
1 month ago
003
Detects potential persistence attempts via registry modifications involving rundll32.exe. The rule monitors for two patterns: registry keys associated with shell commands for specific file types triggering rundll32.exe, and registry 'Run' keys using a 'Locked' value name with a custom URI handler, often indicative of malware or suspicious persistence mechanisms.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
003
Detects potential persistence attempts via registry modifications involving rundll32.exe. The rule monitors for two patterns: registry keys associated with shell commands for specific file types triggering rundll32.exe, and registry 'Run' keys using a 'Locked' value name with a custom URI handler, often indicative of malware or suspicious persistence mechanisms.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
203
Detects mshta.exe spawning suspicious child processes (cmd.exe, powershell.exe, or reg.exe) that are characteristic of the ReverseRAT backdoor. The rule identifies common discovery commands or persistence attempts via Registry Run keys triggered from mshta.exe.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
004
Detects the creation or modification of script files (bat, ps1, vbs, cmd) within the Windows Startup folder initiated by processes commonly associated with AI agents or developer frameworks (e.g., dotnet, python, w3wp). This activity indicates an AI agent environment being exploited to establish persistence, potentially facilitating delayed remote code execution upon user logon.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
202
Detects the creation or modification of a Windows Registry 'Run' key that triggers a PowerShell script named 'Update.ps1' with hidden execution policies. The rule also captures direct execution of the same PowerShell script via process creation events.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
005
This rule detects a malicious execution chain starting with an MSI file being launched by explorer.exe from user-downloaded folders. The installer spawns chrome.exe, drops a specific loader file (e.g., PavokwiLoader.exe or Loader.exe) into the %LOCALAPPDATA%\Temp\modules\ directory, and establishes persistence via the HKCU 'Load' registry value pointing to that location.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
002
Detects a dual persistence mechanism where an adversary establishes both an identically-named Registry Run key and a Scheduled Task, both masquerading as legitimate Canon or Stardock configuration software. These artifacts are configured to launch side-loaded host binaries (COTFileReadApp.exe or DeElevate64.exe) to maintain persistence on a Windows host.
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Ibrahim Saud@tektrix
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Detections.ai Community
29 days ago
000
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