Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects the execution of the LANDFALL spyware's SELinux policy manipulation helper (`l.so`). The spyware's loader (`b.so`) sets a `PRELOAD_PATH` environment variable pointing to `l.so` and uses `LD_PRELOAD` to inject another payload into the benign `/system/bin/id` process. This behavior is specific to the "interactive" execution mode of the spyware.
Detects post-exploitation behavior of LANDFALL spyware on Samsung devices. After exploiting CVE-2025-21042, the spyware uses LD_PRELOAD to inject a malicious shared object (.so) from its working directory (`/data/data/com.samsung.ipservice/files/`) into the benign `/system/bin/id` process, often via a shell wrapper.
Detects the LANDFALL Android spyware manipulating SELinux policy by preloading a malicious shared object and passing a path to the 'l.so' policy manipulator component via the PRELOAD_PATH environment variable.
Detects network connections to blockchain APIs that are indicative of EtherHiding techniques, specifically those used by UNC5342 to retrieve malicious payloads. It identifies connections to domains containing keywords like 'explorer', 'block', 'cypher', 'eth', 'bit', 'coin', or 'crypto', combined with suspicious URL patterns such as 'eth_call' (a read-only function call for smart contracts) or 'apiKey=freekey' (a common free API key used by threat actors).
Detects the creation of a Keras model file (.keras) that contains suspicious file paths or URLs. This may indicate an attempt to exploit CVE-2025-12058 for local file inclusion or server-side request forgery (SSRF).
Detects the compilation of an executable in a temporary directory, followed by its execution and subsequent deletion. This pattern is indicative of an adversary attempting to compile and run tools on a target system while minimizing forensic artifacts.
Detects the execution of the Ligolo-ng tunneling tool, which is used by the Silent Lynx APT group for command and control and network pivoting.
This query is oriented to identify and classify browser extensions by group and risk severity based on a well-known list of browser extension.
Detects when a full data export is initiated in Bitbucket. This event indicates that a complete backup or export of all data within the Bitbucket instance has been triggered. This could be a legitimate administrative action but also a precursor to data exfiltration by an attacker who has gained administrative access to the Bitbucket server.
Detects specific commands commonly used to remove or empty the syslog, a technique often used by attackers to hide their tracks. This rule identifies the use of utilities like 'rm', 'unlink', 'mv', 'truncate', 'ln', 'cp', 'shred', and 'journalctl' when their command lines target '/var/log/syslog' or perform actions that would clear syslog content.
Detects actions that disable Address Space Layout Randomization (ASLR) in Linux. This includes using the `personality` syscall with the ADDR_NO_RANDOMIZE flag, modifying the `/proc/sys/kernel/randomize_va_space` file, or executing the `sysctl` command to set `kernel.randomize_va_space=0`. Disabling ASLR can be used by attackers to bypass memory protection mechanisms and make memory corruption attacks more reliable, often during exploit development.
Detects the execution of 'auditctl' with the '-D' command line parameter, which deletes all configured audit rules and watches on Linux systems. This technique is commonly used by attackers to disable audit logging and cover their tracks by removing monitoring capabilities. Removal of audit rules can significantly impair detection of malicious activities on the affected system.
This rule detects the execution of Python web servers via the command line interface (CLI) on Linux systems. Adversaries often use Python's built-in HTTP server modules (like `http.server` or `SimpleHTTPServer`) in post-exploitation scenarios to quickly establish a web server without needing to install additional software. This allows them to easily transfer files between a compromised host and attacker-controlled systems, facilitating data exfiltration or further payload delivery.
Detects potential exploitation of the TARmageddon vulnerability (CVE-2025-62518) by identifying multiple writes to sensitive configuration files by the same process in a short time frame. This behavior can indicate a file overwrite attack where a malicious TAR archive smuggles and extracts a secondary file to hijack build processes or application configurations.
Detects execution of the Kaspersky init.d stop script on Linux systems either directly or via systemctl.
This activity may indicate a manual interruption of the antivirus service by an administrator, or it could be a sign of potential tampering or evasion attempts by malicious actors.
This activity may indicate a manual interruption of the antivirus service by an administrator, or it could be a sign of potential tampering or evasion attempts by malicious actors.
Detects suspicious modification of the crontab file, which can be used by adversaries for persistence, privilege escalation, or execution of malicious code on Unix-like systems. The rule specifically looks for the 'REPLACE' keyword in cron logs, indicating a crontab entry has been changed.
This rule detects the creation or modification of cron files or files within standard cron directories on Linux systems. Adversaries often abuse the cron utility to establish persistence or schedule malicious tasks for execution at specific times or intervals. Monitoring these file events can help identify unauthorized scheduling of tasks.
Detects potential exploitation of the PwnKit vulnerability (CVE-2021-4034) by looking for specific keywords in authentication logs. The rule identifies attempts to execute 'pkexec' with suspicious environment variable content and specific user/TTY information, indicative of a local privilege escalation attempt.
Detects the creation of a new user account with privileged User ID (UID) or Group ID (GID) on Linux systems, specifically targeting root (UID=0, GID=0), wheel (GID=10), or sudo (GID=27) groups. This rule monitors logs for `useradd` events indicating the creation of users with these elevated privileges.
This rule detects the execution of TruffleHog, a tool designed to find secrets in various platforms such as Git, GitHub, Jira, Slack, Confluence, SharePoint, Docker images, and cloud storage services like S3 and GCS. While TruffleHog is a legitimate tool often used in CI pipelines and security assessments, its execution can also indicate malicious activity, as observed in the Shai-Hulud malware campaign targeting npm packages to steal sensitive information. The rule triggers on either the image name ending with '/trufflehog' or a combination of command-line arguments indicating its use to scan specific platforms and the '--results=verified' flag.
Detects calls to hidden files or files located in hidden directories in Linux systems. This rule specifically looks for file paths containing '/.' which is a common convention for hidden files and directories in Unix-like systems, while filtering out common legitimate hidden paths like '.cache' and '.config'.
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