Detections

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

9,759 detections

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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Hunters
1 month ago
003
Detects the use of PowerShell to load .NET assemblies into memory using System.Reflection.Assembly::Load combined with indicators often associated with fileless payload execution, such as GZip decompression, AES decryption, or method invocation (EntryPoint.Invoke, GetType).
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
105
Detects the execution of PowerShell commands that utilize .NET cryptography classes (AesManaged) in conjunction with data compression (GZipStream) and base64 decoding (FromBase64String). This combination of classes is highly characteristic of malicious scripts designed to decrypt and execute obfuscated or packed payloads in memory.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
205
Detects command-line activity indicating an attempt to bypass or tamper with Anti-Malware Scan Interface (AMSI) functionality. The rule flags processes invoking GetProcAddress or LoadLibrary to resolve and manipulate AMSI-specific functions like AmsiScanBuffer or AmsiScanString within amsi.dll, a common technique for disabling runtime script scanning.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
105
Detects the use of ntdsutil.exe to create an Install From Media (IFM) set, which copies the NTDS.dit file and registry hives to a specified folder. Adversaries often use this technique to stage Active Directory credentials for exfiltration, frequently using the C:\Windows\Temp directory as a staging area. The rule includes exclusions for common legitimate system management and backup agents.
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects the use of ntdsutil.exe to create an Install From Media (IFM) set, which copies the NTDS.dit file and registry hives to a specified folder. Adversaries often use this technique to stage Active Directory credentials for exfiltration, frequently using the C:\Windows\Temp directory as a staging area. The rule includes exclusions for common legitimate system management and backup agents.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects the use of ntdsutil.exe to create an Install From Media (IFM) set, which copies the NTDS.dit file and registry hives to a specified folder. Adversaries often use this technique to stage Active Directory credentials for exfiltration, frequently using the C:\Windows\Temp directory as a staging area. The rule includes exclusions for common legitimate system management and backup agents.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects the use of ntdsutil.exe to create an Install From Media (IFM) set, which copies the NTDS.dit file and registry hives to a specified folder. Adversaries often use this technique to stage Active Directory credentials for exfiltration, frequently using the C:\Windows\Temp directory as a staging area. The rule includes exclusions for common legitimate system management and backup agents.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects the use of ntdsutil.exe to create an Install From Media (IFM) set, which copies the NTDS.dit file and registry hives to a specified folder. Adversaries often use this technique to stage Active Directory credentials for exfiltration, frequently using the C:\Windows\Temp directory as a staging area. The rule includes exclusions for common legitimate system management and backup agents.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
001
Detects the execution of a file with a '.Psh' extension named 'UBPPatch.Psh' that is launched by the process 'UBPUpdater.Exe'. This behavior is indicative of a masqueraded script execution where a suspicious binary or script is disguised with an unconventional extension to evade standard detection mechanisms.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
005
Detects malicious activity involving the HTS software update mechanism, where the legitimate updater or patch processes are leveraged to download and execute the HTSPnew.exe ransomware payload.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
005
Detects a specific loader sequence associated with the DarkMe malware/Water Hydra threat actor. The rule monitors for the execution of rundll32.exe with the /sta flag and a specific CLSID, followed by the presence or execution of targeted applications (cryptocurrency wallets, password managers, and system utilities) within a 15-minute timeframe. This sequence is indicative of the malware enumerating potential targets on the infected host before proceeding with malicious activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects execution of the Go runtime invoking a local module ('go run .') initiated by infrastructure-as-code tools like Terraform or standard command-line interpreters. This pattern matches the behavior of the Graphalgo RAT, which uses a hash-gated mechanism within malicious modules to trigger a second-stage payload.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects execution of potentially malicious scripts (a2.cmd) or unusual DLL loading behavior via rundll32.exe. This activity is often associated with staging or executing malicious payloads using non-standard naming conventions.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects instances where a Terraform provider process spawns a child process (go.exe or cmd.exe) to execute 'go run .'. This behavior is atypical for standard Terraform provider execution and may indicate the use of malicious providers that compile and execute code on-the-fly, a technique used to evade signature-based detection.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects the execution of package management commands (npm, pip, python) within directories or command-line arguments containing 'veltrix' or 'veltrix-capital', which may indicate the use of malicious dependencies or cloned repository lures.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects execution of shell commands (cmd, powershell) by processes associated with AvisLoader (e.g., 78324.exe, VLCAssistant.exe, auto.exe), followed by the creation or modification of files in suspicious user-writable directories (e.g., appdata, temp) within a 10-minute window, suggesting potential C2 activity and secondary payload staging.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects execution of shell commands (cmd, powershell) by processes associated with AvisLoader (e.g., 78324.exe, VLCAssistant.exe, auto.exe), followed by the creation or modification of files in suspicious user-writable directories (e.g., appdata, temp) within a 10-minute window, suggesting potential C2 activity and secondary payload staging.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects execution of shell commands (cmd, powershell) by processes associated with AvisLoader (e.g., 78324.exe, VLCAssistant.exe, auto.exe), followed by the creation or modification of files in suspicious user-writable directories (e.g., appdata, temp) within a 10-minute window, suggesting potential C2 activity and secondary payload staging.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
001
Detects execution of shell commands (cmd, powershell) by processes associated with AvisLoader (e.g., 78324.exe, VLCAssistant.exe, auto.exe), followed by the creation or modification of files in suspicious user-writable directories (e.g., appdata, temp) within a 10-minute window, suggesting potential C2 activity and secondary payload staging.
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Arnold Chan@slaz
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Hunters
1 month ago
001
Detects anomalous, rapid execution of a high volume of diverse offensive security tools (scanners, exploitation frameworks, and C2 agents) from a single parent process within a short window, which is characteristic of automated LLM-driven orchestration or scripted attack tool chaining.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
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