SigmaHQ Detections
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6,800 detections
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Detects the execution of the PowerTool utility, which is known for its capabilities to terminate processes, delete process and driver files, and unload drivers. This tool is often used by adversaries for defense evasion and system manipulation.
This rule detects the execution of the 'sqlite' or 'sqlite3' binary specifically when it is used to query sensitive data from Chromium-based browser profiles. The detection logic looks for command-line arguments that indicate access to common Chromium user data paths and specific database files containing login data, cookies, web data (credit cards, autofill), history, or bookmarks. This activity is highly indicative of an attempt to steal sensitive user information stored by web browsers.
Detects a suspicious RDP session redirect using the 'tscon.exe' utility with the '/dest:rdp-tcp#' command-line argument. This technique can be used by adversaries to hijack an existing RDP session, potentially leading to privilege escalation or lateral movement.
Detects the creation of a file by WinRAR with a double extension and a space in the filename, specifically targeting the temporary directory. This pattern is indicative of an exploitation attempt related to CVE-2023-38331, a vulnerability in WinRAR that allows for arbitrary code execution through specially crafted archives.
This rule detects when the master password for an AWS RDS database instance is changed. This activity could be a precursor to data exfiltration or an attempt to gain unauthorized access to the database. The rule specifically looks for the 'ModifyDBInstance' event from 'rds.amazonaws.com' where the 'masterUserPassword' in 'pendingModifiedValues' is present, indicating a password change.
Detects when a Google Cloud Storage bucket is modified or deleted. This includes operations such as deleting a bucket, inserting (creating) a bucket, or updating/patching a bucket's properties. Such activities can indicate unauthorized access, data manipulation, or attempts to disrupt services.
This rule detects changes to critical Linux auditd configuration files. Adversaries may modify these files to disable or alter auditing, thereby hindering detection of their malicious activities. Monitoring these files for changes can help identify attempts to evade security monitoring.
Detects the creation of a new named pipe using the "mkfifo" utility in a potentially suspicious location, specifically within the /tmp/ directory. Named pipes can be used for inter-process communication and their creation in temporary directories might indicate malicious activity such as local privilege escalation or data exfiltration.
This rule detects attempts to discover if a process is running inside a Docker container by listing or reading the '.dockerenv' file. Attackers often perform container discovery to understand their environment and plan subsequent actions. The rule specifically looks for common Linux utilities like 'cat', 'ls', 'find', 'dir', 'stat', 'test', or 'grep' being executed with '.dockerenv' in their command line arguments.
Detects the execution of the 'userdel' binary, which is used to delete a user account and associated files. This activity can be abused by threat actors to remove accounts, hindering forensic analysis and covering their tracks.
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