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Arnold Chan

@slaz
Trusted contributorCompletionist
2 followers2,100 downloads4,386 copies51 likes26,183 views

7,555 detections

This rule detects network traffic (DNS, TLS, HTTP, and TCP) originating from internal assets to known infrastructure associated with the QTFY proxy botnet/C2 framework. It identifies communication with specific C2 domains, proxy management systems, and associated malicious IP ranges.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
003
This rule detects network connections and DNS queries associated with the QTFY proxy infrastructure, including specific domains, known proxy management system IPs, and suspicious IP ranges. This behavior is indicative of command and control (C2) activity utilizing proxy services to obfuscate traffic.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
103
This rule detects network connections and DNS queries associated with the QTFY proxy infrastructure, including specific domains, known proxy management system IPs, and suspicious IP ranges. This behavior is indicative of command and control (C2) activity utilizing proxy services to obfuscate traffic.
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Arnold Chan@slaz
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Detections.ai Community
2 months ago
103
Detects web requests to 'wp-admin/theme-install.php' containing suspicious query parameters that indicate an attempt to force an unauthenticated theme installation via a Cross-Site Request Forgery (CSRF) exploit (Click2Shell). The rule identifies requests with malicious payloads in the 'theme' parameter, specifically looking for indicators that attempt to bypass CSRF protections when originating from an external site or a non-admin session context.
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Arnold Chan@slaz
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Hunters
2 months ago
000
This rule detects when common web server service accounts (e.g., www-data, apache) spawn Unix shell processes (sh, bash, dash) to execute system enumeration commands like 'id' or 'whoami'. This activity is often a sign of post-exploitation behavior following successful web application exploitation, where an attacker attempts to determine their context and privileges on the compromised host.
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
This rule detects when common web server service accounts (e.g., www-data, apache) spawn Unix shell processes (sh, bash, dash) to execute system enumeration commands like 'id' or 'whoami'. This activity is often a sign of post-exploitation behavior following successful web application exploitation, where an attacker attempts to determine their context and privileges on the compromised host.
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Arnold Chan@slaz
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Hunters
2 months ago
000
This rule detects potential web shell activity by identifying instances where a web server process creates or modifies a PHP file within a 'wp-content/themes' directory, followed closely (within 15 minutes) by that same web server process spawning a shell process (e.g., sh, bash, cmd.exe).
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
This rule detects potential web shell activity by identifying instances where a web server process creates or modifies a PHP file within a 'wp-content/themes' directory, followed closely (within 15 minutes) by that same web server process spawning a shell process (e.g., sh, bash, cmd.exe).
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Arnold Chan@slaz
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Detection & Hunting Community
2 months ago
000
This rule detects potential web shell activity by identifying instances where a web server process creates or modifies a PHP file within a 'wp-content/themes' directory, followed closely (within 15 minutes) by that same web server process spawning a shell process (e.g., sh, bash, cmd.exe).
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Arnold Chan@slaz
Defender - KQL
2 months ago
000
Detects modifications to the /etc/sudoers or /etc/sudoers.d configuration files by non-root users. This activity is often associated with privilege escalation attempts where an adversary attempts to modify sudo policies to grant themselves elevated permissions or bypass password requirements.
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Arnold Chan@slaz
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Midnight Slayer
2 months ago
000
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