Detections

Explore public detection logic contributed by the community across SIEM and rule languages.

153 detections

Detects anomalous activity originating from PostgreSQL processes, including the spawning of shells (cmd, powershell, sh, bash), access to sensitive files (e.g., /etc/shadow, SSH keys), and file creation outside the standard PostgreSQL data directories, which is consistent with the abuse of SQL functionality like pg_read_file() or lo_export().
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
002
This rule monitors for modifications to the PostgreSQL configuration file 'pg_hba.conf', specifically looking for changes that would enable 'trust' authentication, followed by successful database logins using that method within one hour. This behavior is indicative of an attacker modifying authentication rules to gain unauthorized, passwordless access to a database.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
002
Detects the creation of tar archives within the Coder database during a specific window associated with rogue IP activity, where the file creation was performed by a system-level process.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
002
Detects the creation of tar archives within the Coder database during a specific window associated with rogue IP activity, where the file creation was performed by a system-level process.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
002
Detects attempts to modify internal PostgreSQL system catalog tables (pg_authid or pg_proc) to grant superuser privileges or alter authorization records. This activity is commonly associated with exploiting logical decoding plugins to achieve persistence or privilege escalation in PostgreSQL environments.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
004
This rule detects potential persistence mechanisms in a PostgreSQL database by identifying the creation of a new shared library file (e.g., .so or .dll) within PostgreSQL plugin directories, followed by a modification to the PostgreSQL configuration files (postgresql.conf or postgresql.auto.conf) within a short 30-minute window. This behavior is indicative of an attacker registering a malicious shared library to be loaded upon database startup, a technique associated with PostGREShell-style post-exploitation.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
003
This rule detects potential persistence mechanisms in a PostgreSQL database by identifying the creation of a new shared library file (e.g., .so or .dll) within PostgreSQL plugin directories, followed by a modification to the PostgreSQL configuration files (postgresql.conf or postgresql.auto.conf) within a short 30-minute window. This behavior is indicative of an attacker registering a malicious shared library to be loaded upon database startup, a technique associated with PostGREShell-style post-exploitation.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
003
This rule monitors for modifications to the PostgreSQL configuration file 'pg_hba.conf', specifically looking for changes that would enable 'trust' authentication, followed by successful database logins using that method within one hour. This behavior is indicative of an attacker modifying authentication rules to gain unauthorized, passwordless access to a database.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
003
This rule monitors for modifications to the PostgreSQL configuration file 'pg_hba.conf', specifically looking for changes that would enable 'trust' authentication, followed by successful database logins using that method within one hour. This behavior is indicative of an attacker modifying authentication rules to gain unauthorized, passwordless access to a database.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
003
Detects suspicious behavior from database accounts with replication privileges ('rolreplication=true'). The rule monitors for logins from unauthorized IP addresses, the execution of non-replication related SQL commands by these accounts, and the use of potentially malicious plugin names (containing path traversal characters) during replication slot creation.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
003
Detects the initialization of PostgreSQL logical replication slots using uncommon or unrecognized output plugins. Attackers may leverage logical replication plugins to exfiltrate data from a database by streaming changes as they occur, which can be an alternative to traditional mass-export techniques.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
This rule detects modifications to the PostgreSQL authentication configuration file (pg_hba.conf), which controls client authentication. It also identifies replication connection requests from source IP addresses that have not been observed in the previous 7 days, indicating a potential attempt to exfiltrate database data via unauthorized replication.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects instances where a database role initially possessing only REPLICATION privileges is elevated to a SUPERUSER role, which represents a significant escalation of privilege within a PostgreSQL environment.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
This rule detects potential persistence mechanisms in a PostgreSQL database by identifying the creation of a new shared library file (e.g., .so or .dll) within PostgreSQL plugin directories, followed by a modification to the PostgreSQL configuration files (postgresql.conf or postgresql.auto.conf) within a short 30-minute window. This behavior is indicative of an attacker registering a malicious shared library to be loaded upon database startup, a technique associated with PostGREShell-style post-exploitation.
avatar
Arnold Chan@slaz
avatar
Midnight Slayer
2 months ago
001
Detects attempts to modify internal PostgreSQL system catalog tables (pg_authid or pg_proc) to grant superuser privileges or alter authorization records. This activity is commonly associated with exploiting logical decoding plugins to achieve persistence or privilege escalation in PostgreSQL environments.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
002
Detects instances where a database role initially possessing only REPLICATION privileges is elevated to a SUPERUSER role, which represents a significant escalation of privilege within a PostgreSQL environment.
avatar
Arnold Chan@slaz
Defender - KQL
2 months ago
102
This rule monitors for modifications to the PostgreSQL configuration file 'pg_hba.conf', specifically looking for changes that would enable 'trust' authentication, followed by successful database logins using that method within one hour. This behavior is indicative of an attacker modifying authentication rules to gain unauthorized, passwordless access to a database.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
002
This rule detects potential persistence mechanisms in a PostgreSQL database by identifying the creation of a new shared library file (e.g., .so or .dll) within PostgreSQL plugin directories, followed by a modification to the PostgreSQL configuration files (postgresql.conf or postgresql.auto.conf) within a short 30-minute window. This behavior is indicative of an attacker registering a malicious shared library to be loaded upon database startup, a technique associated with PostGREShell-style post-exploitation.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
002
Detects instances where a database role initially possessing only REPLICATION privileges is elevated to a SUPERUSER role, which represents a significant escalation of privilege within a PostgreSQL environment.
avatar
Arnold Chan@slaz
avatar
Detections.ai Community
2 months ago
102
This rule detects administrative SQL statements (ALTER ROLE, CREATE ROLE, or GRANT) that assign the REPLICATION attribute to a database role. The REPLICATION attribute in PostgreSQL allows a user to initiate streaming replication and perform logical decoding. This is a security-sensitive privilege, as users with this attribute can potentially bypass standard access controls or, if the environment is misconfigured or vulnerable (e.g., CVE-2026-6471), potentially leverage malicious replication plugins to achieve arbitrary code execution.
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
002
Detects anomalous activity originating from PostgreSQL processes, including the spawning of shells (cmd, powershell, sh, bash), access to sensitive files (e.g., /etc/shadow, SSH keys), and file creation outside the standard PostgreSQL data directories, which is consistent with the abuse of SQL functionality like pg_read_file() or lo_export().
avatar
Arnold Chan@slaz
avatar
Detection & Hunting Community
2 months ago
002
Page 4 of 8