Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects a sequence of suspicious activities involving files placed in 'ProgramData\Firefox'. It identifies the creation or modification of a non-standard executable within this folder, followed by its execution by a trusted process (or itself), and the subsequent creation of a Registry run key for persistence. This pattern is often used by adversaries for persistence mechanism implementation using masqueraded file names.
This rule detects the creation or modification of a file named 'ClipBoard.txt' within the directory 'AppData\Roaming\ConfigsEx\', as well as the creation of the 'ConfigsEx' directory using command-line tools. This behavior is indicative of an adversary staging sensitive information, such as harvested clipboard data, for potential exfiltration.
Detects a potential destructive activity pattern involving the staging of a payload in a non-standard directory (utilizing a directory name with a trailing space) followed by a burst of file deletions on the same device. This behavior is indicative of a secondary destructive payload execution, often associated with disk-wiping malware.
Detects a potential destructive activity pattern involving the staging of a payload in a non-standard directory (utilizing a directory name with a trailing space) followed by a burst of file deletions on the same device. This behavior is indicative of a secondary destructive payload execution, often associated with disk-wiping malware.
Detects a potential destructive activity pattern involving the staging of a payload in a non-standard directory (utilizing a directory name with a trailing space) followed by a burst of file deletions on the same device. This behavior is indicative of a secondary destructive payload execution, often associated with disk-wiping malware.
Detects high-volume filesystem activity (exceeding 300 operations in 5 minutes) initiated by 'claude-code' or 'claude' processes. This behavior may indicate an autonomous, patched, or jailbroken AI coding assistant performing mass file operations or reconnaissance without user confirmation.
Detects high-volume filesystem activity (exceeding 300 operations in 5 minutes) initiated by 'claude-code' or 'claude' processes. This behavior may indicate an autonomous, patched, or jailbroken AI coding assistant performing mass file operations or reconnaissance without user confirmation.
Detects a process loading known malicious DLLs (winfsp-x64.dll or DukeQt.dll) used by the FamousSparrow threat actor, followed by the creation or modification of a .dat file in the same process context. This pattern is indicative of the reflective loading of a backdoor payload without leaving the secondary binary on disk.
Detects a process loading known malicious DLLs (winfsp-x64.dll or DukeQt.dll) used by the FamousSparrow threat actor, followed by the creation or modification of a .dat file in the same process context. This pattern is indicative of the reflective loading of a backdoor payload without leaving the secondary binary on disk.
Detects instances where common Windows web server processes (w3wp.exe or UMWorkerProcess.exe) initiate suspicious child processes (cmd.exe, powershell.exe, etc.) within a short duration of a file modification event involving known potentially malicious DLL files (winfsp-x64.dll or DukeQt.dll), characteristic of web shell exploitation or post-compromise activity on Exchange/IIS servers.
Detects process executions, file deletions, renames, and movements initiated by known SparroWocky malware files or suspicious DLLs (winfsp-x64.dll, DukeQt.dll). This monitors malicious lifecycle activity on endpoints.
Detects a process loading known malicious DLLs (winfsp-x64.dll or DukeQt.dll) used by the FamousSparrow threat actor, followed by the creation or modification of a .dat file in the same process context. This pattern is indicative of the reflective loading of a backdoor payload without leaving the secondary binary on disk.
Detects the creation or modification of a browser extension 'manifest.json' file that requests both 'declarativeNetRequest' and 'contentScripts' permissions. These permissions are frequently associated with browser-based session hijacking, traffic redirection, and unauthorized data injection, common in malicious extensions.
Detects various persistence methods associated with NetSupport Manager, a legitimate remote management tool often abused by threat actors. The rule monitors for the installation of NetSupport components (specifically client32.exe) in Windows registry run keys, Winlogon configuration, service creation, and keyboard filter drivers.
Detects unauthorized modifications, creations, or renames of Pluggable Authentication Module (PAM) configuration files or core shared libraries (such as pam_rootok.so or pam_permit.so) by non-root users. Attackers often modify these files to bypass authentication mechanisms and achieve privilege escalation. The rule excludes common package management tools to minimize false positives.
Detects unauthorized processes (non-browser applications) creating, modifying, or renaming sensitive browser data files such as Login Data, Cookies, or local state files within standard browser profile directories. This activity is indicative of credential harvesting or session hijacking attempts by malicious software.
Detects unauthorized processes (non-browser applications) creating, modifying, or renaming sensitive browser data files such as Login Data, Cookies, or local state files within standard browser profile directories. This activity is indicative of credential harvesting or session hijacking attempts by malicious software.
Detects unauthorized processes (non-browser applications) creating, modifying, or renaming sensitive browser data files such as Login Data, Cookies, or local state files within standard browser profile directories. This activity is indicative of credential harvesting or session hijacking attempts by malicious software.
Detects unauthorized processes (non-browser applications) creating, modifying, or renaming sensitive browser data files such as Login Data, Cookies, or local state files within standard browser profile directories. This activity is indicative of credential harvesting or session hijacking attempts by malicious software.
This rule detects file creation or modification events occurring within the 'ProgramData\ZlibDate' directory. This specific path and the associated file extensions (.Dat and .zip) are frequently associated with data staging activities or unauthorized file management by malicious software attempting to persist or exfiltrate data under the guise of legitimate application data.
This rule detects file creation or modification events occurring within the 'ProgramData\ZlibDate' directory. This specific path and the associated file extensions (.Dat and .zip) are frequently associated with data staging activities or unauthorized file management by malicious software attempting to persist or exfiltrate data under the guise of legitimate application data.
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