Detections

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

4,543 detections

Detects process and file creation activity matching known MovieReaper loader and downstream module file hashes (MD5/SHA256). C2 IP/domain network indicators for this campaign require a separate network_connection-category rule, since Sigma logsource categories cannot be mixed within a single rule.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
102
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Hunters
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
002
Detects activity associated with the 'MovieReaper' threat campaign by identifying known malicious file hashes, command and control (C2) IP addresses, and communication with identified malicious domains. This rule monitors process execution, file operations, and network connections within the campaign's active timeframe.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
002
Detects the creation of files or folders containing suspicious command-line parameters associated with tar or Parallels toolchain injection, specifically looking for the 'use-compress-program' flag which can be abused for command injection.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects automated searching (via grep, findstr, or select-string) for sensitive strings (e.g., API keys, private keys, wallet data) across multiple occurrences on a single host, or the creation of suspicious sensitive files (e.g., .env, credentials, wallet.dat) on devices where such automated sweeping activity has been observed. This pattern indicates an adversary staging data for exfiltration.
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Arnold Chan@slaz
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Hunters
2 months ago
004
Detects automated searching (via grep, findstr, or select-string) for sensitive strings (e.g., API keys, private keys, wallet data) across multiple occurrences on a single host, or the creation of suspicious sensitive files (e.g., .env, credentials, wallet.dat) on devices where such automated sweeping activity has been observed. This pattern indicates an adversary staging data for exfiltration.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
004
Detects the creation of specific Object Manager namespace directories and objects used by the ShieldCrash proof-of-concept (CVE-2026-69414) to hijack the Microsoft Defender scan process.
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Arnold Chan@slaz
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Hunters
2 months ago
309
This rule detects potential web shell creation on a Microsoft Exchange server by monitoring for suspicious child processes spawned by the IIS web server process (w3wp.exe) that correlate with the creation or modification of web-accessible script files (.aspx, .ashx, .asp, .dll) within the Exchange virtual directories (ecp, owa, aspnet_client). This pattern is consistent with common post-exploitation activities used by attackers to gain persistent access via web shells.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
103
This rule detects the creation of a scheduled task involving 'MicrosoftIME' or the placement of an 'MicrosoftIME.exe' file within the 'Microsoft\IME' directory. It correlates these activities to identify potential persistence mechanisms where an adversary may be attempting to hijack or masquerade as a legitimate Microsoft Input Method Editor process.
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Ankit Mehta@Secvyn
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Detections.ai Community
1 month ago
000
This rule detects the execution of 'vsdbg.exe', the Visual Studio Remote Debugger, from non-standard directories (e.g., Downloads, AppData, Temp, ProgramData) or in conjunction with the creation of 'vsdbg.dll' files. Adversaries may utilize this debugger for remote code execution or to bypass security controls by masquerading as a legitimate development tool.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
001
Detects execution of PowerShell spawned by suspicious processes (e.g., installers or Windows Explorer) involving LNK file patterns or suspicious command-line obfuscation techniques commonly associated with Kimsuky (APT-C-55) activity.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
This rule detects a multi-stage attack pattern originating from a web-based service. It identifies a web application process (like w3wp.exe, httpd.exe, or java.exe) spawning suspicious child processes (cmd.exe, powershell.exe, etc.), followed by the creation of new files and external network connections. This chain of behavior is highly indicative of web shell exploitation, post-exploitation command execution, and data exfiltration or C2 communication.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects potential web shell or malicious DLL deployment into Microsoft Exchange or IIS directories by the IIS worker process (w3wp.exe), as well as suspicious child process execution (such as command-line shells or credential discovery tools) spawned directly from IIS worker processes.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
102
Detects file creation events initiated by ScreenConnect (ConnectWise Control) client processes. ScreenConnect is a legitimate remote support and RMM tool often leveraged by adversaries for remote access or as a secondary persistence mechanism. Monitoring file creation by these processes may indicate the installation of additional tools, scripts, or malware via a remote support session.
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Ibrahim Saud@tektrix
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Detections.ai Community
1 month ago
002
Detects potential web shell installation via WordPress administrative panels. The rule identifies a WordPress administrator session executing a theme installation request triggered by an external (off-site) referer, followed shortly thereafter by the creation of new PHP files within the WordPress themes directory. This pattern is often indicative of an attacker leveraging a compromised admin session to upload a backdoor.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
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