Detections

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

20,504 detections

This rule detects the use of the LockAppHost process to execute suspicious commands associated with tampering with security configurations, including Windows Defender settings, service management (sc.exe), and task scheduling. Adversaries may abuse this process to bypass security controls, disable real-time monitoring, or maintain persistence.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
105
Detects the execution of SGWebRender.exe with command-line arguments that weaken browser security, such as disabling web security, allowing file access, or disabling the sandbox. These flags are often used to facilitate malicious activity, such as bypassing cross-origin policies, accessing sensitive local files, or executing malicious code without sandbox constraints.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
000
Detects execution of the GRAYRABBIT loader (specifically 7z.exe from the Users\Public\Documents staging path) in environments exhibiting low process count activity (<= 50 processes). This behavior is consistent with anti-sandbox checks used by this loader to gate XOR key derivation for payload decryption.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
000
This rule monitors for specific PowerShell command-line patterns often associated with malicious activity, including 'ClickFix' clipboard-paste lures (using iex/irm with sleep timers), evasion techniques involving pscustomobject/ScriptBlock, and WinHttp COM object usage for stage-2 payload fetching. These patterns are characteristic of adversary attempts to bypass security controls and download secondary implants.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
2 months ago
409
This rule detects the use of the curl command-line utility to communicate with a specific IP address (162.0.239.85) on port 3000, specifically targeting a path associated with 'mac' tasks. This pattern is indicative of a downloader or a staged payload retrieval from an external command-and-control server.
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Ankit Mehta@Secvyn
Bharat Cyber Guardians
2 months ago
309
Detects usage of the 'finger' utility via command line within scripts or batch files, or network connections originating from the 'finger' process on port 79 to non-internal destinations. This activity is commonly associated with internal network reconnaissance to gather user information or system details.
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Ankit Mehta@Secvyn
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Hunters
2 months ago
001
This rule detects potential persistence attempts by monitoring for the execution and service installation commands of specific binaries: cplsupport.exe and wtass.exe. The rule triggers if these files are executed directly, invoked with specific command-line arguments (e.g., '--install'), or used in conjunction with the 'sc.exe' utility to create new services, which is a common technique for establishing persistence or privilege escalation.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
002
Detects suspicious service installation patterns involving WmiPrvSE, common in lateral movement techniques.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects post-exploitation persistence artifacts on Windows endpoints consistent with abuse of CVE-2026-18577.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
This rule detects the execution of powershell.exe with command-line arguments that utilize 'curl' to download a file from a specific remote IP address (103.86.86.244). This behavior is characteristic of adversaries using built-in Windows tools or redirected utilities to perform ingress tool transfer as part of a malicious payload delivery.
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Arnold Chan@slaz
Defender - KQL
2 months ago
103
This rule detects the execution of powershell.exe with command-line arguments that utilize 'curl' to download a file from a specific remote IP address (103.86.86.244). This behavior is characteristic of adversaries using built-in Windows tools or redirected utilities to perform ingress tool transfer as part of a malicious payload delivery.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects instances where PowerShell is used to download an executable named 'svchost.exe' from an external IP address (103.86.86.244). The rule monitors for network connections to this IP, file creation events matching specific download patterns in fonts directories, and direct command-line arguments involving the suspicious IP and file path, indicating potential malware dropper activity.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
103
Detects instances where PowerShell is used to download an executable named 'svchost.exe' from an external IP address (103.86.86.244). The rule monitors for network connections to this IP, file creation events matching specific download patterns in fonts directories, and direct command-line arguments involving the suspicious IP and file path, indicating potential malware dropper activity.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
Detects the use of the Windows reg.exe utility to copy Registry keys related to Radmin, a legitimate remote access tool that is frequently abused by threat actors for persistence and remote control. The command-line arguments /s and /f indicate a silent, forced copy operation, which is characteristic of script-based configuration tampering.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
203
Detects the use of the native Windows registry utility 'reg.exe' to import configuration files (install.reg) related to the Radmin remote access software, specifically targeting the security settings registry path.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
This rule detects the use of 'mshta.exe' to execute a file from a remote location by inspecting the command line for 'http' protocols and a specific suspicious domain. Adversaries often abuse mshta.exe to proxy the execution of malicious HTML Application (HTA) files or scripts to bypass security controls.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
106
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
406
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
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Arnold Chan@slaz
Defender - KQL
2 months ago
106
This rule detects the use of PowerShell to modify Microsoft Defender settings to disable real-time, behavior, and IOAV protection, while simultaneously adding a full-drive exclusion for the root directory (C:\). This behavior is characteristic of an adversary attempting to disable security monitoring to facilitate further malicious activity or avoid detection.
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Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects suspicious persistence mechanisms initiated by the 'wscl.exe' executable. The rule monitors for registry run key modifications, service installation via command-line arguments, and service creation events, specifically filtering for non-standard execution paths (outside of System32, SysWOW64, or Program Files).
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
002
Detects instances where rundll32.exe is executed by a process named 'eld0.exe' residing in user-writable or temporary directories (e.g., Users, ProgramData, Temp, AppData). This behavior is characteristic of execution flow hijacking or malicious payload loading from suspicious file paths.
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Amit Ambekar@Amit007
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Detections.ai Community
2 months ago
102
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