Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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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 obfuscated first-stage JavaScript payload sharedLoad.min.js dropped by the malicious npm indexed-btree package, identified by string-array encoding and self-checksumming array rotation obfuscation patterns
Detects malformed HEIF/HEIC image files with anomalous ftyp/box structure consistent with the libheif memory corruption exploit (CVE-2026-32882) used against Discourse forum image upload endpoints
Detects incoming spearphishing emails that contain a ZIP archive attachment. The rule alerts if the archive contains an LNK file with a double extension (e.g., .pdf.lnk) or if the email subject contains specific social engineering lures related to food pricing or peace negotiations.
This rule detects malicious activity related to the exploitation of MpDlpService.exe. It looks for the execution or presence of known malicious file hashes associated with this threat, including a P-stage script, payload files, and a malicious mpclient.dll. Additionally, it identifies instances where the legitimate MpDlpService.exe binary is executed from a non-standard, suspicious directory, which is a common indicator of side-loading or persistence techniques.
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 HTML files utilizing the 'GhostCode' technique to hide malicious phishing redirects. The technique involves a password-protected HTML lure that uses JavaScript (Web Crypto API) to derive an AES-256-GCM key from a user-provided password via PBKDF2, decrypt an embedded ciphertext payload, and dynamically redirect the user to a concealed phishing URL.
Detects a browser process downloading an APK installer file from a source other than official Google Play infrastructure. This behavior is commonly associated with smishing, malvertising, and redirection to deceptive third-party application portals used to distribute malware-laced APK droppers.
Detects HTML, XHTML, or SVG files used in Mirage2FA phishing campaigns. These files act as stagers by constructing hidden iframes to load remote JavaScript payloads from '/api/xls/' paths, utilizing specific placeholder tokens and obfuscation techniques such as XOR deobfuscation (0xAD) and custom function wrappers.
Detects the presence or execution of files associated with the 'MacSync' malware family, based on a list of known MD5 file hashes.
This rule monitors for indicators of compromise (IOCs) associated with the Rapuncel/Cruciferra 'Bring Your Own Vulnerable Driver' (BYOVD) malware-as-a-service (MaaS) campaign. It detects malicious file hashes (associated with dropped binaries or drivers), connections to known malicious command-and-control (C2) IP addresses, and network requests to domains used by the infrastructure.
This rule identifies instances of screen capture events initiated by processes that have previously engaged in network communication with known Remote Management Tool (RMM) domains. By correlating network activity with suspicious endpoint events, it flags potential unauthorized screen scraping performed by tools often abused by attackers for post-compromise reconnaissance.
Detects removable-media/storage interaction events initiated by the PlugX side-loaded process chain (GRrte.exe / Jarte.exe), consistent with the PlugX core's drive-type query and removable-media ejection behavior (GetDriveTypeW / DeviceIoControl)
Detects endpoint, process, and network activity associated with the 'TaskStomp' threat actor, specifically targeting known malicious file hashes, command-and-control domains, and specific URLs used in their campaigns.
This rule identifies potential activity related to the Kothamine malware by monitoring for specific file hashes associated with the malware in process and file execution events, as well as network connections to a specific malicious GitHub repository path used for payload delivery.
This rule detects instances where the Terraform CLI tool connects to suspected lookalike domains associated with supply chain compromise attempts (e.g., hashicorp-aws[.]com or hashicorp-terraform[.]io) during common initialization or application workflows. It correlates process execution with network connection logs and optionally validates the presence of a related .terraform.lock.hcl file associated with the malicious origin.
This rule detects instances where the Terraform CLI tool connects to suspected lookalike domains associated with supply chain compromise attempts (e.g., hashicorp-aws[.]com or hashicorp-terraform[.]io) during common initialization or application workflows. It correlates process execution with network connection logs and optionally validates the presence of a related .terraform.lock.hcl file associated with the malicious origin.
This rule monitors for execution of suspicious files or processes and network communication associated with known malicious indicators (hashes, domains, and IP addresses) typically used by specific threat actors for command and control (C2) and payload delivery.
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 a sequence of suspicious activities associated with credential dumping and inhibiting system recovery. The rule tracks when a user account executes multiple commands related to volume shadow copies (vssadmin, rmdir, mklink) or attempts to copy sensitive registry files (SAM, SYSTEM, SECURITY) within a 15-minute window on the same device.
Detects activity associated with a potential RMM (Remote Monitoring and Management) agent communicating with known malicious infrastructure and accessing sensitive files like credentials or IDs. This often indicates an adversary leveraging legitimate RMM tooling for post-compromise activity or exfiltration.
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