Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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Detects suspicious exceptions within the Spring framework that could indicate attempts to exploit vulnerabilities. These exceptions often arise during web application attacks such as CSRF attempts, cookie theft, or other forms of unauthorized access or manipulation.
Detects potential Spring Expression Language (SpEL) Injection exploitation attempts, which can lead to Remote Code Execution (RCE). The rule specifically looks for the 'org.springframework.expression.ExpressionException' keyword in application error logs, indicating that an attempt to evaluate a malicious expression might have occurred or failed.
This rule detects common SQL exception types in Python applications as defined by PEP 249. These exceptions (DataError, IntegrityError, ProgrammingError, OperationalError) indicate issues during database operations, which could range from malformed queries to database connectivity problems or constraint violations. While often benign, repeated or unusual occurrences of these errors could signal application vulnerabilities being exploited (e.g., SQL injection attempts leading to syntax errors) or other malicious database interactions.
This rule detects when an application has been uninstalled from a Windows system. It specifically looks for MsiInstaller events with EventIDs 1034 (Windows Installer removed the product) or 11724 (Product Removal Successful). This can be an indicator of an adversary attempting to remove security software or other critical applications to hinder detection or response efforts, or simply to clean up their tracks.
This rule detects suspicious activity related to the Windows User Profile Service, specifically looking for EventID 1511 (Windows cannot find the local profile and is logging you on with a temporary profile) from the 'Microsoft-Windows-User Profiles Service' provider. This event, especially when combined with EventID 1515 (user profile loaded successfully) and the creation of a '\Users\TEMP' directory, can indicate an attempt to exploit vulnerabilities like CVE-2021-34484 or CVE-2022-21919 for privilege escalation. The rule focuses on the initial indication of a temporary profile being loaded.
Detects the exploitation of the Microsoft Exchange vulnerability CVE-2020-0688, which is a remote code execution vulnerability. The rule specifically looks for an 'Error' level EventID 4 from the 'MSExchange Control Panel' provider, combined with the presence of '__VIEWSTATE=' in the event data, indicating an attempt to exploit the vulnerability via the Eventlog.
Detects when a Microsoft Cloud App Security reported for users whose account were terminated in Azure AD, but still perform activities in other platforms such as AWS or Salesforce.
This is especially relevant for users who use another account to manage resources, since these accounts are often not terminated when a user leaves the company.
This is especially relevant for users who use another account to manage resources, since these accounts are often not terminated when a user leaves the company.
Detects potential OGNL Injection exploitation, which may lead to RCE.
OGNL is an expression language that is supported in many JVM based systems.
OGNL Injection is the reason for some high profile RCE's such as Apache Struts (CVE-2017-5638) and Confluence (CVE-2022-26134)
OGNL is an expression language that is supported in many JVM based systems.
OGNL Injection is the reason for some high profile RCE's such as Apache Struts (CVE-2017-5638) and Confluence (CVE-2022-26134)
Detects process execution related errors in NodeJS. If the exceptions are caused due to user input then they may suggest an RCE vulnerability.
Detects potential local file read vulnerability in JVM based apps.
If the exceptions are caused due to user input and contain path traversal payloads then it's a red flag.
If the exceptions are caused due to user input and contain path traversal payloads then it's a red flag.
Detects process execution related exceptions in JVM based apps, often relates to RCE
Detects exceptions in velocity template renderer, this most likely happens due to dynamic rendering of user input and may lead to RCE.
Detects potential JNDI Injection exploitation. Often coupled with Log4Shell exploitation.
Detects XML parsing issues, if the application expects to work with XML make sure that the parser is initialized safely.
Detects SQL error messages that indicate probing for an injection attack
Detects when end user consent is blocked due to risk-based consent.
Detects when a Microsoft Cloud App Security reported when users were active from an IP address that has been identified as an anonymous proxy IP address.
Alert on when a user has performed an eDiscovery search or exported a PST file from the search. This PST file usually has sensitive information including email body content
Alert when a user has performed an export to a search using 'New-ComplianceSearchAction' with the '-Export' flag. This detection will detect PST export even if the 'eDiscovery search or exported' alert is disabled in the O365.This rule will apply to ExchangePowerShell usage and from the cloud.
Detects an issue in apache logs that reports threading related errors
Nginx Core Dump
Sigma
Detects a core dump of a crashing Nginx worker process, which could be a signal of a serious problem or exploitation attempts.
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