Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
1,084 detections
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Detects bulk insertions or content updates into vector databases, document stores, or knowledge bases that contain suspected instruction-override, jailbreak, or role-hijacking phrases, particularly when performed by unauthenticated or unknown identities.
Detects a suspicious sequence of events where a user engagement (voice/video call) involving themes of urgency or helpdesk interaction is closely followed by a high-risk administrative action (e.g., password reset, MFA device enrollment, or financial transfer) by the same user, where the communication session context differs from standard activity, indicative of a deepfake-enabled vishing attack.
Detects malicious prompt injection attempts within an LLM conversation session. The rule monitors for ingested content containing common instruction-override keywords (e.g., 'ignore previous instructions', 'system prompt override'), followed immediately by the agent process executing unauthorized actions such as process launch, network connections, or file creation within the same session/user context.
Detects bulk insertions or content updates into vector databases, document stores, or knowledge bases that contain suspected instruction-override, jailbreak, or role-hijacking phrases, particularly when performed by unauthenticated or unknown identities.
This rule detects potential prompt injection attacks against internal AI-powered assistants, agents, or LLM gateways. It monitors network HTTP requests for common patterns used to override system instructions, bypass safety filters, or force the model to adopt a privileged, unauthorized persona (e.g., administrator or debug mode). These techniques are often used in social engineering to manipulate the AI's output or security posture.
TokenGrabber Builder: Webhook XOR/Base64 Obfuscation Artifacts - detects webhook.txt persistence, XOR 0x5A + Base64 webhook obfuscation, WEBHOOK_PLACEHOLDER injection, and the _x() decode routine used to recover the exfiltration endpoint
Detects potential exploitation of CVE-2026-41940 affecting cPanel/WHM, where administrative actions occur without a preceding successful login event from the same source IP within a 30-minute window. This indicates an authentication bypass attempt.
Detects malicious Android application installation or launch behavior consistent with the 'Corp MDM' implant. This rule specifically identifies instances where a package named 'com.corp.mdm' is installed or launched and rapidly requests a combination of high-risk permissions including SMS and telephony access (RECEIVE_SMS, READ_SMS, CALL_PHONE) alongside notification permissions, which is characteristic of the implant's initial setup phase.
Detects malicious Android application installation or launch behavior consistent with the 'Corp MDM' implant. This rule specifically identifies instances where a package named 'com.corp.mdm' is installed or launched and rapidly requests a combination of high-risk permissions including SMS and telephony access (RECEIVE_SMS, READ_SMS, CALL_PHONE) alongside notification permissions, which is characteristic of the implant's initial setup phase.
This rule detects Salesforce Agentforce or similar AI-driven chat responses that contain external URLs with non-standard Top-Level Domains (TLDs). It identifies cases where the organization's redactor failed to strip a URL due to unexpected TLDs or unusual trailing termination characters (e.g., brackets) that are still rendered as clickable links in the interface. Such links may facilitate phishing, credential harvesting, or redirection to malicious sites.
Detects the invocation of file-related functions (DownloadFileAsync, upload_file) within the Semantic Kernel framework that lack associated validation function calls. This pattern is indicative of potential Remote Code Execution (RCE) or unauthorized file system access scenarios where an LLM agent is coerced into performing dangerous file operations without path sanitization.
Detects rapid termination of specific mobile messenger applications (Max) within seconds of starting, while indicators of the Frida dynamic instrumentation tool are concurrently detected on the device. This pattern suggests the application is identifying the presence of a hooking/instrumentation environment and self-terminating as a defense mechanism. The detection is further correlated with failed connection attempts to the application's backend.
Detects rapid termination of specific mobile messenger applications (Max) within seconds of starting, while indicators of the Frida dynamic instrumentation tool are concurrently detected on the device. This pattern suggests the application is identifying the presence of a hooking/instrumentation environment and self-terminating as a defense mechanism. The detection is further correlated with failed connection attempts to the application's backend.
Detects rapid termination of specific mobile messenger applications (Max) within seconds of starting, while indicators of the Frida dynamic instrumentation tool are concurrently detected on the device. This pattern suggests the application is identifying the presence of a hooking/instrumentation environment and self-terminating as a defense mechanism. The detection is further correlated with failed connection attempts to the application's backend.
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 smuggling files identified as 'FlipBook' lures, commonly used in device-code phishing campaigns. These lures utilize client-side JavaScript for AES-GCM decryption, extensive comment-based obfuscation, and specific junk-padding techniques to bypass security controls and trick users into providing credentials.
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 instances where a Claude session token is reused from a new IP address without the completion of an MFA challenge, indicating a potential session hijacking or session theft attempt.
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 modifications to payroll direct deposit or payment election settings within Workday. This activity is a common indicator of payroll fraud or Business Email Compromise (BEC), where an attacker gains access to an employee's Workday account to redirect salary payments to an unauthorized bank account.
Detects package publishing or version creation events on npm or PyPI that originate from non-CI/CD service accounts, suggesting the use of stolen registry authentication tokens by unauthorized entities to push malicious package versions.
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