Arnold Chan
@slazTrusted contributorCompletionist
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7,555 detections
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Detects network requests originating from the Netch gateway tool or similar environments, attempting to fetch auto-configuration profiles for Shadowsocks from the external domain 'www.sheng886.top' using the '/api/v1/internal/shadowsocks/auto-config' endpoint. The rule specifically matches the Go-http-client user agent, which is common in automated scripts and Go-based proxy tools.
Detects an HTTP POST request targeting the host 'tt.yeyoujs.com' at the URI path '/api/agent/enroll', containing a specific Python aiohttp User-Agent string. This pattern is characteristic of a C2 agent attempting to register or enroll with an external command-and-control server.
This rule detects the use of 'mshta.exe' to execute a file from a remote location by inspecting the command line for 'http' protocols and a specific suspicious domain. Adversaries often abuse mshta.exe to proxy the execution of malicious HTML Application (HTA) files or scripts to bypass security controls.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
Detects the execution of PowerShell with suspicious command-line arguments (e.g., encoded commands, hidden windows) initiated by mshta.exe, excluding instances where a .ps1 script file is involved. This pattern often indicates attempts to bypass execution policy or run obfuscated payloads in memory, which is a common behavior of malicious HTA files.
This rule detects inbound HTTP GET requests to a specific IP address (103.86.86.244) requesting a file named 'deploy.ps1'. This behavior is characteristic of adversaries using PowerShell one-liners (cradles) like 'irm' (Invoke-RestMethod) or 'iex' (Invoke-Expression) to fetch and execute malicious scripts directly from a remote C2 infrastructure.
Detects Adblock.dll used by Docro Hijacker to bypass Chrome Secure Preferences HMAC-SHA256 integrity checks and register infected browser UUID via vendralo[.]info
Detects Adblock.dll used by Docro Hijacker to bypass Chrome Secure Preferences HMAC-SHA256 integrity checks and register infected browser UUID via vendralo[.]info
This rule detects the use of PowerShell to modify Microsoft Defender settings to disable real-time, behavior, and IOAV protection, while simultaneously adding a full-drive exclusion for the root directory (C:\). This behavior is characteristic of an adversary attempting to disable security monitoring to facilitate further malicious activity or avoid detection.
Detects suspicious persistence mechanisms initiated by the 'wscl.exe' executable. The rule monitors for registry run key modifications, service installation via command-line arguments, and service creation events, specifically filtering for non-standard execution paths (outside of System32, SysWOW64, or Program Files).
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