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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,099 downloads4,329 copies51 likes25,857 views

7,555 detections

Detects sessions using shared Grafana service account tokens that perform both read-only and action-capable tool operations without confirmed prior authentication. This behavior is indicative of an unauthenticated or spoofed session leveraging a service account's excessive permissions, bypassing standard authentication flows.
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Arnold Chan@slaz
Defender - KQL
2 months ago
003
Detects high-frequency requests for 'tools/list' from a single source IP across multiple unique destination hosts. This pattern is indicative of a breadth-first scan attempting to identify reachable Model Context Protocol (MCP) servers, rather than typical legitimate client-to-server communication.
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Arnold Chan@slaz
Defender - KQL
2 months ago
103
Detects high-frequency requests for 'tools/list' from a single source IP across multiple unique destination hosts. This pattern is indicative of a breadth-first scan attempting to identify reachable Model Context Protocol (MCP) servers, rather than typical legitimate client-to-server communication.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
003
Detects incoming Grafana API requests directed at vulnerable mcp-grafana server instances identified by an outdated version (pre-1.1.0). This rule correlates host-level version discovery with application-layer logs containing suspicious 'grafana_api_request' method calls, which may indicate an attempt to exploit Server-Side Request Forgery (SSRF) vulnerabilities.
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Arnold Chan@slaz
Defender - KQL
2 months ago
103
This rule monitors for internal network connection attempts initiated by the 'mcp-grafana' process to destinations it has not contacted in the previous 14 days. By establishing a baseline of legitimate data source connections, the rule alerts when the process performs a rapid fan-out or discovery against multiple new internal hosts, which may indicate unauthorized network reconnaissance or lateral movement attempts by the Grafana service.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
003
Detects a privilege escalation technique where an attacker with application management permissions adds a credential to the 'Office 365 Exchange Online' service principal (SP). The attacker then leverages the SP's 'Domain.ReadWrite.All' permission to add or modify a federated domain, allowing them to forge tokens for any hybrid user.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
102
This rule detects the execution of arbitrary commands via the Windows Subsystem for Linux (WSL) by monitoring process creation events where 'wsl.exe' is the executable. It specifically looks for command lines that include flags like '--exec' or '-e', or common shell commands and downloaders such as 'curl', 'wget', 'bash -c', 'sh -c', 'nc ', or 'ncat '. This activity can indicate an adversary leveraging WSL to execute malicious code or bypass security controls.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
Detects instances where the ESET Remote Administrator Agent (ERAAgent.exe) modifies registry keys related to Windows network security settings, such as LSA policies, NullSession pipes/shares, or server/workstation auto-sharing. These settings can be manipulated to weaken Windows security posture, potentially facilitating lateral movement or credential access.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
Detects instances where the ESET Remote Administrator Agent (ERAAgent.exe) terminates shortly after loading the Data Protection API service (dpapisvc.dll). This pattern may indicate an attempt to interact with or disrupt DPAPI services, potentially to facilitate credential dumping or sensitive data access.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
Detects periodic execution cycles of ERAAgent.exe that involve memory protection changes, characteristic of the SLEEPWALKER malware's XOR-decrypt-execute-reencrypt loop scheduled by a cron-like mechanism.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
002
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