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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers1,966 downloads3,578 copies44 likes20,432 views

7,399 detections

Detects modifications to the PostgreSQL configuration file 'pg_hba.conf' closely followed by a reload command (via pg_ctl or postgres processes). This behavior is indicative of an attacker attempting to modify authentication or connection access controls for a database.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects modifications to the PostgreSQL configuration file 'pg_hba.conf' closely followed by a reload command (via pg_ctl or postgres processes). This behavior is indicative of an attacker attempting to modify authentication or connection access controls for a database.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
001
Detects direct SQL UPDATE operations on the pg_authid system table to modify privilege flags (e.g., rolsuper, rolcreaterole) without using the authorized ALTER ROLE statement. Such activity often indicates an attempt to escalate privileges or modify database user permissions in an unauthorized manner, bypassing standard auditing and role management processes.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
Detects the creation of a PostgreSQL replication slot using an unrecognized or potentially malicious logical decoding plugin. Adversaries may use custom or unauthorized plugins to exfiltrate database contents or intercept replication data streams, bypassing standard monitoring for common plugins like pgoutput or test_decoding.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
Detects the presence of a malicious HAProxy binary (version 2.8.12) that has been recompiled with an embedded 'ted' plugin. The plugin is designed to intercept and manipulate web traffic, as evidenced by specific strings related to pipe file handling, logging, and registration operations found within the binary.
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Arnold Chan@slaz
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Detections.ai Community
1 month ago
001
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.
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Arnold Chan@slaz
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Detection & Hunting Community
1 month ago
001
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.
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Arnold Chan@slaz
Defender - KQL
1 month ago
001
This rule detects the use of raw sockets by 'ERAAgent.exe' by monitoring for socket I/O control (Ioctl) operations involving 'SIO_RCVALL'. This configuration, often associated with promiscuous mode, allows an application to capture all network traffic received by the network interface, a behavior commonly used by network sniffing tools or malicious implants to intercept sensitive data.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects Python processes (python.exe, pythonw.exe, py.exe) executing with high or system integrity levels and interacting with named pipes, a technique often used for inter-process communication, persistence, or process injection.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
Detects behavior where the ERAAgent process writes a file to disk and executes that same file shortly after (within 5 minutes). This pattern is consistent with staged payload delivery, decompression, or assembly often observed in malicious activity, specifically referencing SLEEPWALKER malware patterns.
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Arnold Chan@slaz
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Midnight Slayer
1 month ago
000
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