Detections
Explore public detection logic contributed by the community across SIEM and rule languages.
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This rule detects potential JNDI (Java Naming and Directory Interface) injection exploitation attempts within JVM-based applications. It specifically looks for keywords related to LDAP lookups ('com.sun.jndi.ldap.') and the Log4j JndiManager ('org.apache.logging.log4j.core.net.JndiManager') in application error logs. Such patterns are commonly associated with vulnerabilities like Log4Shell, where attackers inject malicious JNDI lookup strings to achieve remote code execution.
Detects suspicious Ruby on Rails exceptions that could indicate exploitation attempts. These exceptions often occur when an attacker is probing a web application for vulnerabilities or attempting to bypass security controls like CSRF tokens, or sending malformed requests.
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 identifies user sign-ins originating from anonymous IP addresses, which may indicate the use of VPNs, Tor, or other anonymization services. Such activity can be a sign of an adversary attempting to mask their true location or identity during an access attempt.
This rule detects user activity that Azure AD Identity Protection has flagged as 'investigationsThreatIntelligence'. This risk event type indicates that a sign-in or user behavior is unusual for the user or consistent with known attack patterns, often leveraging threat intelligence feeds to identify suspicious activity. It suggests potential compromise of user accounts or malicious sign-in attempts.
Detects path traversal exploitation attempts
Detects Microsoft Word (WINWORD.EXE) starting the uncommon sub-process FLTLDR.exe, which is indicative of exploitation attempts for vulnerabilities like CVE-2017-0261 and CVE-2017-0262. This behavior suggests a malicious document is attempting to execute arbitrary code.
Detects file indicators associated with a 2018 phishing campaign attributed to APT29 (Cozy Bear), as reported by Mandiant. The rule specifically looks for the creation or modification of files named 'ds7002.lnk', 'ds7002.pdf', or 'ds7002.zip'.
Detects CVE-2021-22123 exploitation attempt against Fortinet WAFs
Detects an authentication bypass vulnerability (CVE-2021-40539) affecting the REST API URLs in Zoho ManageEngine ADSelfService Plus. The rule specifically looks for requests to vulnerable endpoints that could be used to exploit this flaw.
Detects potential exploitation attempts of CVE-2022-21587, an arbitrary file upload vulnerability impacting Oracle E-Business Suite (EBS). This vulnerability can lead to unauthenticated remote code execution.
This rule detects potential exploitation attempts targeting the Centos Web Panel (CWP) 7, specifically looking for indicators related to CVE-2022-44877, an unauthenticated remote code execution vulnerability. The detection logic focuses on POST requests to '/login/index.php' containing specific query parameters and keywords often associated with reverse shells or command injection, such as 'login=$(' or base64 encoded 'python' strings.
This rule detects potential exploitation attempts of CVE-2023-23752, an improper access check vulnerability in Joomla's web service endpoints. The detection specifically looks for GET requests to the '/api/index.php/v1/' path with the 'public=true' query parameter, which is indicative of an attempt to bypass access controls.
This rule detects sign-in attempts originating from a country that is considered new or infrequent for the user based on their past activity locations. This behavior can indicate a compromised account being used by an attacker from an unusual geographic location.
Detects suspicious DNS error messages that indicate a fatal or suspicious error that could be caused by exploiting attempts. Specifically looks for messages related to dropping source port zero packets, denied AXFR requests, and fatal errors causing an exit.
This rule detects the execution of a script via the SCX RunAsProvider ExecuteScript function, which is associated with the OMIGOD vulnerability. Specifically, it looks for process creation events where the user is 'root', the LogonId is '0', the CurrentDirectory is '/var/opt/microsoft/scx/tmp', and the CommandLine contains '/etc/opt/microsoft/scx/conf/tmpdir/scx'. This pattern indicates the execution of a temporary script created by the SCX agent, often exploited for privilege escalation or initial access.
Detects attempts to download a Flash Player update from a suspicious, non-official location. This rule specifically looks for requests containing '/flash_install.php' or ending with '/install_flash_player.exe' that do not originate from a legitimate Adobe domain.
Detects an attempt to install a device that is forbidden by the system policy, indicated by Windows Security Event ID 6423. This event signifies that a device installation was blocked due to a configured policy.
Detects the creation of suspicious executable or script files within the OneNote temporary directory, indicating potential malware delivery and execution via malicious OneNote attachments. This behavior has been observed in recent malware campaigns leveraging OneNote files.
Detects suspicious child processes spawned by Microsoft OneNote. This rule identifies attempts to execute malicious embedded objects from a .one file by monitoring for OneNote spawning known LOLBINs (Living Off the Land Binaries) or executables from suspicious paths. This behavior is often associated with initial access and execution techniques used by adversaries.
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