Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects execution and activity associated with the Grixba infostealer (often linked to Play Ransomware / Jumpy Pisces operations). The rule monitors for the execution of 'GT_NET.exe' from suspicious locations like 'C:\Users\Public\Music\', the loading or creation of the 'inf_g.dll' modular payload, and identifies a specific known Grixba v3 SHA-256 hash.
Detects various phases of the Grixba infostealer infection lifecycle, including persistence via file drops in public user directories, malicious DLL/payload creation, reconnaissance data exfiltration, security software tampering (Windows Defender, AMSI, WLDP), and event log clearing via wevtutil.
This rule detects potential ransomware activity by monitoring for the deliberate inhibition of Windows system recovery features (via vssadmin, wmic, or bcdedit) and the subsequent staging of archived data in public user directories.
Detects the loader using the native Windows curl.exe to retrieve a ZIP archive containing the RMM components, bypassing PowerShell execution policies. This rule specifically looks for curl.exe executing with command-line arguments that indicate an output file ending in '.zip' and a URL, followed by a file creation event for a '.zip' file.
Detects suspicious activity originating from web application processes (python, uvicorn, gunicorn) involving the download and execution of a payload (isp.sh), followed by the deployment and execution of a binary (lambsys) within hidden directories in /var/tmp/. This rule flags indicators of compromise such as curl/wget calls to suspicious IPs, creation of hidden directories, and execution of binary files in temporary storage locations.
Detects a two-stage activity pattern where a non-root user compiles C source code using common compilers (gcc, clang) within writable system directories (/tmp, /dev/shm, /var/tmp) using command-line arguments indicative of kernel or low-level exploits (e.g., skbuff, xfrm, static compilation), followed by the immediate execution of a newly created binary from those same directories within 60 seconds.
Detects activities related to the compilation and execution of the DirtyClone PoC exploit (CVE-2026-43503) on Linux systems, including compilation from source, direct execution of the binary, and permission modifications on binaries within world-writable directories.
Detects the configuration and usage of personal Microsoft OneDrive accounts on corporate endpoints. This is achieved by monitoring for OneDrive process execution with personal account command-line arguments, OneDrive setup utilities configured with personal tenant identifiers, and file system activity within directory paths associated with personal OneDrive synchronization.
Detects potential abuse of Active Directory Certificate Services (AD CS) by monitoring for suspicious command-line activity from 'certreq.exe' and 'certutil.exe' associated with certificate enrollment, submission, or management. It also identifies the staging of certificate-related files (.pem, .pfx, .p12, .crt, .cer, .key) in common user directories.
Detects unauthorized access or modification to common CI/CD credential files (.npmrc, .pypirc, .git-credentials, jenkins credentials.xml) and CI/CD configuration files (.github/workflows, .gitlab-ci.yml). The rule monitors both file system activities by non-standard processes and the execution of command-line tools that reference these sensitive files.
Detects a suspicious command pattern where 'cmd.exe' writes a transient batch file, immediately executes it, and then deletes it. This behavior is a common EDR evasion technique used to execute malicious payloads without leaving persistent traces on the disk.
Detects the installation of specific browser extensions in Microsoft Edge followed by network connection activity to external IP addresses. This behavior is indicative of potential malicious browser extensions, such as those used for browser session hijacking, credential theft, or command and control (C2).
Detects attempts to perform a container escape using path traversal via the 'docker cp' command. This rule monitors for malicious directory traversal sequences, the creation of specific artifacts used in known PoC exploits for container escapes, and the subsequent execution of scripts or shell interpreters by container management processes.
Detects artifacts and behavioral patterns associated with the exploitation of the SystemInformer PhSvc (Process Hacker Service) ALPC channel to escalate privileges. The rule monitors for unauthorized rundll32.exe process activity spawning cmd.exe with specific command line arguments, the creation of PoC-related files, and the loading of unsigned modules into the rundll32.exe process.
Detects potential exploitation of ImageMagick vulnerabilities where Ghostscript delegates are used to achieve arbitrary code execution. The rule monitors for suspicious Ghostscript command-line arguments (e.g., missing or disabled -dSAFER), child process creation (spawning shells or interpreters), execution of network tools, unauthorized file modifications with script/binary extensions, and outbound network connections initiated by Ghostscript processes.
Detects file creation or modification events associated with the known malicious Chromium extension 'Search for perplexity ai' (ID: flkebkiofojicogddingbdmcmkpbplcd). The rule monitors for the installation of the extension and the creation of its declarativeNetRequest rule files (perplexity-rules.json, bing-rules.json, google-rules.json), which are used to hijack browser search queries and redirect them to a typosquatted domain.
Detects a sequence of events where PowerShell is used to download files from 'nvidiadriver.net' or with filenames containing 'winPatch', followed by a suspicious file drop (specifically 'winPatch.zip' or 'update.vbs') in a temporary directory within a 30-minute window. This behavior is indicative of potential initial staging for a RAT or malicious script deployment.
Detects the creation of .ics calendar invitation files in common user download and temporary directories when originated by web browsers or Microsoft Outlook. This pattern is often indicative of spearphishing campaigns where attackers use weaponized calendar files to deliver malicious payloads or links, attempting to exploit users through social engineering.
This rule detects activities indicative of a Docker container escape, specifically targeting the 'docker cp' path traversal vulnerability. It monitors for suspicious command-line patterns involving path traversal sequences ('../'), execution of shells or common utilities from container-related processes (dockerd, containerd, etc.), and the presence of known proof-of-concept artifacts or files written outside the expected container boundary.
Detects execution of rclone or the creation of an rclone configuration file (rclone.conf) occurring on a host within 24 hours of QEMU virtualization activity. This combination may indicate an adversary using virtualization software for staging or research, followed by data exfiltration via rclone to a remote cloud destination.
Detects the execution of the AdaptixC2 agent (AdgNsy.exe) from AppData\Local directories and its subsequent internal network scanning activity against sensitive ports (445, 3389, 5985). The rule also monitors for potential dropper patterns associated with the Bumblebee loader, specifically involving processes like consent.exe or msiexec.exe dropping the binary.
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