Detections

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

1,080 detections

Detects when a Node.js process initiates a low-level keyboard hook (WH_KEYBOARD_LL or WH_KEYBOARD) while running from common user-writable directories, which may indicate malicious keylogging activity by a suspicious process.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects when the PostgreSQL service process (postgres.exe/postgres/postmaster) loads a shared library (.dll or .so) from a non-standard, user-writable directory (e.g., Temp, AppData, /tmp). This behavior is indicative of potential exploitation of vulnerabilities like CVE-2026-6471, where attackers attempt to load malicious plugins via unvalidated logical decoding plugin paths.
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Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects the loading or usage of the malicious driver 'DCRCVDrv.sys' associated with the ClearFake crypto stealer campaign, which uses a Bring-Your-Own-Vulnerable-Driver (BYOVD) technique to interact with the device path '\Device\DCRCVDRV_U' to terminate or impair EDR and security tools.
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Ankit Mehta@Secvyn
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Detections.ai Community
2 months ago
000
Detects attempts to crash or terminate the Kaspersky Antivirus process (avp.exe), as well as associated events indicating the service has been stopped or is encountering abnormal fault conditions. This behavior is indicative of an adversary attempting to disable security software.
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Amit Ambekar@Amit007
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Detections.ai Community
2 months ago
204
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 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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Detection & Hunting Community
2 months ago
001
Detects unexpected crashes of major security software agents (e.g., Antivirus, EDR) that are not associated with authorized vendor update or installation activities, potentially indicating tampering or exploitation attempts to disable security controls.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
This rule detects attempts to modify file or directory permissions (e.g., using icacls, takeown, chmod, or chown) on paths associated with known security products. Such activity is often indicative of an adversary attempting to tamper with, disable, or exclude security tools from logging or inspection.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
This rule detects attempts to modify file or directory permissions (e.g., using icacls, takeown, chmod, or chown) on paths associated with known security products. Such activity is often indicative of an adversary attempting to tamper with, disable, or exclude security tools from logging or inspection.
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects the execution of commands containing keywords associated with Linux kernel module management (modprobe) and sensitive memory/kernel modification flags (msr, allow_writes). These keywords are often utilized by malicious actors attempting to load Loadable Kernel Modules (LKMs), manipulate system memory directly, or disable kernel-level protections.
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gaurang k@gaurang7778
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Detections.ai Community
2 months ago
104
This rule detects potentially malicious activity involving the manipulation of Windows services using 'sc.exe' to stop or delete services, combined with the forceful termination of 'svchost.exe' processes via 'wmic.exe'. This pattern is often associated with adversaries attempting to disable security tools, logging agents, or other defensive mechanisms on an endpoint.
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
This rule detects either the execution of a specific SSH daemon binary known to be trojanized or the creation/modification of files within the /var/lib/sshd/ directory, which is a common indicator of backdoor persistence or credential theft targeting SSH sessions.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
101
Detects the use of common Linux command-line utilities (sed, grep, awk, bash, sh) to perform operations on sensitive system logs or shell history files. The rule targets command strings indicative of log modification, filtering, or removal of audit trails, often associated with an attacker attempting to conceal malicious activity.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects the use of common Linux command-line utilities (sed, grep, awk, bash, sh) to perform operations on sensitive system logs or shell history files. The rule targets command strings indicative of log modification, filtering, or removal of audit trails, often associated with an attacker attempting to conceal malicious activity.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
This rule detects either the execution of a specific SSH daemon binary known to be trojanized or the creation/modification of files within the /var/lib/sshd/ directory, which is a common indicator of backdoor persistence or credential theft targeting SSH sessions.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
Detects the 'ted' backdoor or similar malicious activity attempting to manipulate HAProxy's internal connection counters by accessing or writing to the HAProxy process memory (/proc/[pid]/mem or /proc/self/mem). This behavior is characteristic of an attempt to evade backend logging and statistics tracking by directly modifying process memory structures.
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Arnold Chan@slaz
Defender - KQL
2 months ago
001
Detects when the PostgreSQL service process (postgres.exe/postgres/postmaster) loads a shared library (.dll or .so) from a non-standard, user-writable directory (e.g., Temp, AppData, /tmp). This behavior is indicative of potential exploitation of vulnerabilities like CVE-2026-6471, where attackers attempt to load malicious plugins via unvalidated logical decoding plugin paths.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
001
Detects when the PostgreSQL service process (postgres.exe/postgres/postmaster) loads a shared library (.dll or .so) from a non-standard, user-writable directory (e.g., Temp, AppData, /tmp). This behavior is indicative of potential exploitation of vulnerabilities like CVE-2026-6471, where attackers attempt to load malicious plugins via unvalidated logical decoding plugin paths.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
001
This rule detects the termination of specific security-related processes (e.g., antivirus services) shortly after a specific driver, 'ardrv.sys', is loaded on a Windows system. This sequence is characteristic of a 'Bring Your Own Vulnerable Driver' (BYOVD) attack, where an adversary loads a signed but vulnerable kernel driver to gain elevated privileges, which they then use to disable or terminate security monitoring processes.
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Kaung Khant Ko@kaungkhantko
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Detections.ai Community
2 months ago
3010
Detects attempts to stop or reconfigure critical Windows security services (such as WinDefend, WscSvc, Sense, and WdNisSvc) using the Service Control Manager (sc.exe) or by modifying service registry keys via reg.exe. This behavior is indicative of an adversary attempting to disable EDR/AV solutions to evade detection.
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Subhankar H@Andrewsec57
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Detections.ai Community
2 months ago
000
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