Arnold Chan
@slazTrusted contributorCompletionist
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7,544 detections
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Detects periodic screen capture activity performed by Node.js or Electron-based processes, correlated with subsequent outbound network connections to public IP addresses within a short timeframe. This behavior is indicative of the JSCeal malware's surveillance and exfiltration module, where local reconnaissance via screenshotting is followed by data transmission.
This rule detects network connections or DNS queries to known phishing domains (typosquatted Microsoft login domains), DeadDrop Resolver domains, and suspicious HTML payloads served from common CDN/package hosting sites (e.g., unpkg.com, npmmirror.com, cdn.jsdelivr.net, yarnpkg.com). These patterns are indicative of initial access attempts via phishing or the secondary stage of malware C2 communication.
Detects execution of Electron or Node.js processes attempting to export Telegram sessions, specifically targeting execution paths often used for staging or temporary storage (Temp, Roaming, ProgramData, Public folders).
Detects modifications to the Windows Registry that disable Microsoft Defender Tamper Protection. Tamper Protection is a security feature that prevents malicious changes to security settings, including the disabling of antivirus and real-time monitoring.
This rule monitors for the creation or presence of a specific backdoor account (username 'p2pwn' and password 'p2password') on Dahua devices. This account is known to be injected by threat actors exploiting CVE-2024-39943 as part of Operation CameraSwarm to maintain persistent unauthorized access.
Detects network requests targeting Dahua devices that attempt to exploit CVE-2021-33044. The exploitation involves sending a crafted 'global.login' RPC call with specific parameters (clientType 'NetKeyboard', loginType 'Direct', authorityType 'Default') to bypass authentication and retrieve administrative session tokens.
Detects network requests targeting Dahua devices that attempt to exploit CVE-2021-33044. The exploitation involves sending a crafted 'global.login' RPC call with specific parameters (clientType 'NetKeyboard', loginType 'Direct', authorityType 'Default') to bypass authentication and retrieve administrative session tokens.
Detects repeated HTTP requests targeting the '/cgi-bin/' path on Dahua camera web interfaces with a specific user-agent string ('CGI Brute'). This behavior is characteristic of an automated brute-force campaign attempting to gain unauthorized access to camera web administration interfaces.
This rule detects rapid SYN packet patterns from external sources targeting the Dahua proprietary port 37777, characteristic of network scanning tools like Masscan attempting to discover or identify vulnerable Dahua devices.
Detects attempts to tamper with Microsoft Windows Defender configuration, specifically by modifying exclusion paths via PowerShell cmdlets (Add-MpPreference, Set-MpPreference), direct registry modifications, or forced Group Policy updates. It also monitors for the disabling of Tamper Protection via registry and the creation of scheduled tasks designed to apply Defender exclusions.
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