Arnold Chan
@slazTrusted contributorCompletionist
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7,555 detections
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Detects modifications to Microsoft Entra ID (formerly Azure AD) authentication methods policy where a new external authentication method is configured using a non-approved discovery URL. This could indicate an adversary attempting to configure a malicious identity provider to facilitate authentication bypass or unauthorized access.
Detects rapid, multi-category system and network enumeration performed by AI-assisted development tools (e.g., Cursor, Claude, ChatGPT). The rule triggers when an AI agent process performs a comprehensive scan of the host environment, specifically covering machine/OS identity, network configuration, process listings, installed software, and access to sensitive credential files within a 10-minute window. It requires at least 5 distinct discovery categories and 6 total events to reduce noise from routine debugging. Covers T1082, T1016, T1057, T1518
Detects rapid, multi-category system and network enumeration performed by AI-assisted development tools (e.g., Cursor, Claude, ChatGPT). The rule triggers when an AI agent process performs a comprehensive scan of the host environment, specifically covering machine/OS identity, network configuration, process listings, installed software, and access to sensitive credential files within a 10-minute window. It requires at least 5 distinct discovery categories and 6 total events to reduce noise from routine debugging. Covers T1082, T1016, T1057, T1518
Detects rapid, multi-category system and network enumeration performed by AI-assisted development tools (e.g., Cursor, Claude, ChatGPT). The rule triggers when an AI agent process performs a comprehensive scan of the host environment, specifically covering machine/OS identity, network configuration, process listings, installed software, and access to sensitive credential files within a 10-minute window. It requires at least 5 distinct discovery categories and 6 total events to reduce noise from routine debugging. Covers T1082, T1016, T1057, T1518
This rule detects suspicious usage of certutil.exe for file downloading or the execution of the Chisel proxy tool, specifically targeting connections or authentication towards the suspicious IP address 69.48.228.86. This behavior is indicative of C2 communication or ingress tool transfer.
Detects execution of encoded commands in macOS terminal environments that originate from clipboard content mimicking a reCAPTCHA verification process. This pattern often involves users being social-engineered into pasting a malicious string that decodes a payload and pipes it directly into a shell interpreter (sh/bash/zsh). The rule monitors for the co-occurrence of base64/openssl decoding commands and shell execution pipes, while filtering out known legitimate software installation patterns.
Detects execution of encoded commands in macOS terminal environments that originate from clipboard content mimicking a reCAPTCHA verification process. This pattern often involves users being social-engineered into pasting a malicious string that decodes a payload and pipes it directly into a shell interpreter (sh/bash/zsh). The rule monitors for the co-occurrence of base64/openssl decoding commands and shell execution pipes, while filtering out known legitimate software installation patterns.
Detects HTTP POST requests directed to the URI path '/api/credentials' over the non-standard TCP port 8133, which is indicative of AMOS (Atomic macOS) Stealer exfiltrating stolen credentials to a C2 server.
Detects HTTP POST requests directed to the URI path '/api/credentials' over the non-standard TCP port 8133, which is indicative of AMOS (Atomic macOS) Stealer exfiltrating stolen credentials to a C2 server.
Detects architecture-specific Mach-O 64-bit AMOS Stealer binaries dropped by the Macfinger ClickFix first-stage shell script, requiring multiple distinctive C2 endpoint strings alongside Mach-O magic and size constraints to reduce false positives
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