Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects unauthorized processes attempting to read or manipulate local storage, session storage, or database files associated with messaging applications like Telegram and WhatsApp, or email clients like Outlook and Thunderbird. This behavior is indicative of credential or data theft by malicious software or unauthorized scripts.
Detects file removal, write, or rename operations performed by the Node.js process within the 'node_modules' directory, specifically targeting sensitive files like 'sharedLoad.min.js' or paths containing 'extended' or 'btree'. This behavior is indicative of potential malicious activity related to software supply chain compromise or unauthorized modification of dependencies within a Node.js application environment.
Detects the creation or modification of a file named '.Outlook' within the AppData or AppData\Roaming folders, followed by network communication to known malicious domains or IP addresses by a process other than outlook.exe within a 30-minute window. This behavior is indicative of potential malware staging or command-and-control communication.
Detects activity related to potential browser credential theft, specifically targeting Chrome and Microsoft Edge. The rule monitors for the loading of a specific suspicious file, the presence of browser-specific decryption artifacts such as 'browser_decryption.log' or 'ProtectR3.dll', and process command-line arguments containing keywords like 'DecryptData' or 'Elevation Service' associated with browser credential extraction.
Detects the creation or writing of the specific log file '/logs/send_sms_apix.log' associated with the AnonyMousKIT Phishing-as-a-Service (PhaaS) platform. This file is typically used by the kit to record SMS billing or gateway activity during a phishing operation.
Detects the presence and execution of components related to the 'GhostCode' activity, specifically the installation of a rogue self-signed root certificate authority (CA) masquerading as Google Trust Services and the subsequent configuration of a local TLS-intercepting proxy. The detection monitors for the creation of specific archive files, modification of the system certificate store, addition of local firewall rules, and modification of the local hosts file.
Detects unauthorized modification of system cron files by the redis-server process, indicative of rogue redis replication exploitation, followed by the execution of a cron job associated with the XMRig cryptocurrency miner.
Detects patterns associated with the TeamFiltration backdoor module, specifically unauthorized OneDrive/SharePoint file modifications occurring shortly after an authentication from a previously unseen device/IP. The rule flags file changes (modifications, deletions, or renames) involving potential executable or script extensions, or those performed by the OneDrive SyncEngine app from a new source.
Detects patterns associated with the TeamFiltration backdoor module, specifically unauthorized OneDrive/SharePoint file modifications occurring shortly after an authentication from a previously unseen device/IP. The rule flags file changes (modifications, deletions, or renames) involving potential executable or script extensions, or those performed by the OneDrive SyncEngine app from a new source.
Detects patterns associated with the TeamFiltration backdoor module, specifically unauthorized OneDrive/SharePoint file modifications occurring shortly after an authentication from a previously unseen device/IP. The rule flags file changes (modifications, deletions, or renames) involving potential executable or script extensions, or those performed by the OneDrive SyncEngine app from a new source.
This rule detects modifications to Group Policy Objects (GPOs) that are either explicitly marked as malicious based on known indicators (GUIDs or 'PAYLOAD' strings) or involve unauthorized modifications to domain-root or organizational unit GPO links. It monitors Active Directory security event logs for object changes.
Detects suspicious activity on VMware ESXi hosts involving the termination or unregistration of virtual machines via 'esxcli' or 'vim-cmd', correlated with high volumes of file modification or creation events (.vmdk or .vmx files) within a short window. This pattern often indicates attempts to disrupt virtual machines or inhibit system recovery by adversaries.
This rule detects mass file modification, creation, or renaming activity involving files with the '.krsid' extension. The threshold is set to monitor for more than 20 occurrences, which is indicative of potential ransomware encryption activity, while explicitly excluding common system, temporary, and development paths, and filtering out processes explicitly performing shadow copy deletion.
Detects unauthorized write or modification operations against machine learning training data, feature stores, and model registries. The rule identifies suspicious activity by flagging actions occurring outside established change windows, attempts by identities with no prior history of modifying the resource, or bulk data modifications that could indicate training data poisoning or model tampering.
Detects the creation, modification, or execution of known malicious files associated with the Kimsuky threat actor, based on a static list of MD5 hashes observed in their campaigns.
Detects sensitive cPanel/WHM administrative commands or system file modifications occurring within one hour of a suspected authentication bypass event, indicative of potential post-exploitation activity related to CVE-2026-41940.
Detects sensitive cPanel/WHM administrative commands or system file modifications occurring within one hour of a suspected authentication bypass event, indicative of potential post-exploitation activity related to CVE-2026-41940.
Detects a sequence of actions often used to bypass macOS Gatekeeper protections: removing the quarantine extended attribute using 'xattr -c' on a file in the /tmp directory, followed by making that file executable with 'chmod +x', and finally executing the file. This behavior is indicative of malicious software attempting to evade Apple's security checks for downloaded files.
This rule detects unauthorized access, creation, or modification of Git credential files (.git-credentials, .netrc) by processes other than standard Git credential management utilities. It also monitors command-line activity that references these credential stores to identify potential attempts to exfiltrate or manipulate stored credentials.
This rule detects modifications to GitHub Actions workflow configuration files (.yml or .yaml) located in the .github/workflows/ directory. Such modifications may indicate unauthorized tampering with CI/CD pipelines to facilitate persistent execution, credential theft, or supply chain attacks.
Detects attempts to bypass macOS Gatekeeper security controls by manually removing the 'com.apple.quarantine' extended attribute using 'xattr' or by modifying executable permissions with 'chmod' on specific system or sensitive file paths, such as 'iSync'. These actions are commonly performed to evade execution restrictions on downloaded or untrusted files.
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